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Australian National Fabrication Facility

                                           2015
                                           CASEBOOK
2015 Australian National Fabrication Facility - Australian National ...
ANFF – The home of tomorrow’s entrepreneurs

                                                      In 2007, ANFF was established to           competitiveness of the Australian
                                                      provide facilities that were not           economy in the future.
                                                      otherwise available in Australia, and
                                                                                                 This casebook, ANFF – The Home of
                                                      to support areas of micro and nano
                                                                                                 Tomorrow’s Entrepreneurs, tells some of
                                                      fabrication research in which Australia
                                                                                                 the stories of today’s entrepreneurs from
                                                      excelled.
                                                                                                 the ANFF Network who are bringing
                                                      The uptake by both university and          their technologies to market, including
                                                      industry researchers has been              some of the seven start-up companies
                                                      significant, growing consistently from     that have emerged from ANFF nodes.
                                                      less than 30,000 hours of tool usage
                                                                                                 While ANFF will continue to support
                                     Rosie Hicks      in 2008/09 to over 190,000 during
                           Chief Executive Officer                                               these micro and nanotechnology
                                                      2014/15.
           Australian National Fabrication Facility                                              entrepreneurs in the years to come,
                                                      It is not only the quantity of research    it is recognised that their innovations
                                                      that has increased, but also the           are the product of many years of
                                                      profile. Last year more than 50% of the    fundamental high-profile research.
                                                      academic publications generated with
                                                                                                 This year’s casebook is the biggest
                                                      the support of ANFF were featured in
                                                                                                 we have published to date, with
                                                      the top-rated 5% of academic journals.
                                                                                                 36 case studies: a reflection of the
                                                      The benefit that ANFF provides has         number of opportunities for Tomorrow’s
                                                      been noticed on an international stage.    Entrepreneurs to establish new
                                                      Usage by international researchers         industries in Australia. These case
                                                      has also increased significantly,          studies span all of the nine national
                                                      with collaborative projects under          research priorities set out by the
                                                      development with organisations such        Australian Government.
                                                      as the US Air Force and NASA.
                                                                                                 This casebook also includes feedback
                                                      While it could be argued that these        from our roadshow ANFF 2025 –
                                                      impacts for Australia were anticipated     Future Capabilities Consultation, which
                                                      as part of the original strategy for       ran earlier this year. The sessions
                                                      NCRIS and ANFF, there are a number         provided an opportunity for ANFF
                                                      of other opportunities that were not.      to identify the challenges that the
                                                                                                 nanotechnology research community
                                                      This year we’re focusing on the
                                                                                                 is seeking to tackle in the next seven
                                                      innovative research carried out in the
                                                                                                 to ten years. Key findings from the
                                                      facilities around Australia and ANFF’s
                                                                                                 consultation will help to identify the
                                                      role in supporting entrepreneurs.
                                                                                                 research infrastructure and capability
                                                      Entrepreneurs play a key role in           that ANFF needs to offer going
                                                      a country’s economy and must be            forward, and prepare us to best
                                                      equipped with the skills to take new       support this community over the coming
                                                      ideas to market. ANFF fosters              decade.
                                                      entrepreneurship by training researchers
                                                                                                 By providing this support, ANFF can
                                                      in the micro and nano fabrication skills
                                                                                                 maintain the flow of new opportunities
                                                      necessary to fabricate devices and
                                                                                                 for the nanotechnology industries of
                                                      advanced materials.
                                                                                                 tomorrow.
                                                      ANFF enables researchers to develop
                                                      new ideas that have long-term
                                                      implications, and provides the facility
                                                      to take publicly funded research along
                                                      the pathway to creating commercial
                                                      outcomes that will ensure the

2   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                                                                                   anff.org.au
2015 Australian National Fabrication Facility - Australian National ...
Contents

                                            Welcome................................................................................................ 2

                                            Snapshot of ANFF..................................................................................... 4

                                            ANFF 2025 – Future Capabilities Consultation............................................... 6

                                            Case Studies, arranged in accordance with the Australian Government’s
                                            nine Science and Research Priorities
                                            Food..................................................................................................... 10

                                            Soil and Water....................................................................................... 14

                                            Transport................................................................................................ 16

                                            Cybersecurity......................................................................................... 18

                                            Energy.................................................................................................. 22

                                            Resources.............................................................................................. 26
                                            Advanced Manufacturing......................................................................... 30

                                            Environmental Change............................................................................. 44

                                            Health................................................................................................... 48

                                            Entrepreneur Profiles

                                            David Lancaster...................................................................................... 21

                                            Luke Parkinson........................................................................................ 33

                                            Simon Gross.......................................................................................... 37

                                            François Ladouceur.................................................................................. 43

                                            Ryan Pawell........................................................................................... 52

                                            Mark Kendall......................................................................................... 55

                                                                           Australian National                           Credits
                                                                           Fabrication Facility Ltd                      Writer & Co-editor
                                                                           151 Wellington Road                           Meegan Waugh
                                                                           Clayton VIC 3168                              Co-editor
                                                                           T: +61 3 9902 9619                            Warren McKenzie
                                                                           E: info@anff.org.au                           Design
                                                                           www.anff.org.au                               Peta Blackwell

Cover image credit: Paul Henderson-Kelly.

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2015 Australian National Fabrication Facility - Australian National ...
Snapshot of ANFF
     ANFF was established under the Australian Government’s             Over 500 facilities are located across 21 institutions around
     National Collaborative Research Infrastructure Strategy            Australia in a national network of 8 nodes. Each node offers
     (NCRIS).                                                           complementary specialised manufacturing facilities supported
                                                                        by trained staff.
     ANFF’s mission is to provide micro and nano fabrication
     facilities for Australia’s researchers, SMEs and start-up
     companies.

     The 8 Nodes of ANFF

      Western Australia
           Node
                                                                                                              Queensland
                                                                                                                Node

                                                                                                                     NSW
                                                                                                                     Node
                                                                                                            Optofab
                                                                                                             Node
                                           South Australia                                                 Materials
                                               Node                                                         Node

                                                                                                      ACT
                                                                                                      Node
                                                                 Victorian
                                                                  Node

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2015 Australian National Fabrication Facility - Australian National ...
User Distribution                                                              Number of Hours
                                                      University host (57%)
                                                                                  2008/09
                                                      University external (23)%
                                                                                  2009/10
                                                      Publically funded
                                                      researchers (5%)            2010/11
                                                      International (5%)
                                                                                  2011/12
                                                      Industry (10%)
                                                                                  2012/13

                                                                                  2013/14

                                                                                  2014/15

                                                                                            0     50,000       100,000    150,000     200,000

Supporting Australian researchers in 2014/2015
Providing access to micro and nano fabrication facilities                            Inspiring collaboration
ANFF facility usage increased by 50% relative to                                     International usage of ANFF facilities increased by 40% in
2013/2014.                                                                           2014/15. Over 9,000 tool hours were used by international
                                                                                     research collaborators.
192,639 hours of ANFF facility time was consumed by
2,672 researchers fabricating new devices, novel materials                           Supporting tomorrow’s entrepreneurs
and prototypes during 2014/15.
                                                                                     ANFF usage by companies grew 35% during FY14/15.
Critically, this activity delivers world class research,
                                                                                     Almost one third of the 16,500 industry hours were from
attracts international collaborators, and builds support for
                                                                                     international entrepreneurs and companies using ANFF
entrepreneurs who want to contribute to Australian industries
                                                                                     facilities for their R&D.
or start new ones.

Supporting world class research
More than 50% of ANFF related publications were featured in
the top rated 5% of international journals as ranked by ERA.

• Delegates at the Enabling Technologies workshop, Arlington, VA 2015.

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2015 Australian National Fabrication Facility - Australian National ...
Earlier this year, we ran ANFF 2025 – Future Capabilities Consultation.
     This was a chance for the fabrication community to get together and talk
     about the research challenges that we’re seeking to tackle in the next
     seven to ten years. In February and March 2015, events were held in
     six cities across Australia. Based on the Australian Academy of Science’s
     ‘National Nanotechnology Strategy 2012’, we considered four
     different thematic areas: photonics, nanobio, advanced materials,
     and nanoelectronics. Key findings from the consultation, which
     are outlined on the following pages, will contribute to identifying the
     research infrastructure capability that ANFF needs to offer going forward.

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2015 Australian National Fabrication Facility - Australian National ...
ANFF 2025
      Future Capabilities Consultation o
                                            The incremental advances of a photonics        the implementation of advanced sensor
                                            roadmap have the potential to underpin         systems. Microfluidic devices have been
                                            groundbreaking advances in other               described as a ‘lab-on-a-chip’ suitable
                 Photonics represents       disciplines, such as biophotonics.             for point-of-care diagnostics, but
                     10% of the             ANFF must provide the integration,             coupling to the device is a challenge.
                  economies of the          packaging capabilities and skilled             Technical challenges include materials
                   US and Europe.           personnel to make this happen.                 compatibility, bio-functionalised surface
                                            World leaders in photovoltaic                  engineering and the ability to access
                                            technologies, Australian researchers           international foundries, which is limited
                                            must be able to fabricate large-area           for material systems other than silicon.
                                            solar cells to work with international         Australian research in niche areas
Photonics                                   industry and secure investor                   including hybrid chips with III-V
Australian advances in photonics            engagement. This requires large area           materials and silicon cannot be easily
have the potential to create impact in      deposition facilities. Current research        undertaken at an international foundry
fields as diverse as neuroscience and       by CSIRO supported by ANFF-Vic                 due to contamination issues. Solving
astronomy. But unless researchers can       includes plasmonic enhanced solar              challenges overseas also means
take fully packaged devices or working      cells with improved light harvesting,          losing a degree of insight into the
prototypes directly into their laboratory   and thermal management systems for             process. We need to be internationally
we won’t achieve cross-discipline take-     improved conversion efficiency.                aligned and take care to avoid non-
up. For a fibre sensor to be used by a                                                     compatibility, but we also need an
                                            Challenges facing Australian                   Australian capability as a bridge to
biologist, it must be packaged ready
                                            researchers include reproducibility            foundry manufacturing.
for connection to the biological system
                                            for commercialisation of devices and
under test. It might also be necessary                                                     To enable photonics research we must
                                            the ability to demonstrate nanoscale
to use softer materials rather than a                                                      understand the end-user needs, from
                                            functionality across large wafers.
rigid case to match the mechanical                                                         one-off demonstrations to medical trials,
properties of the electrodes to the         Optical fibre fabrication is being             together with the applicable standards
environment, which might be bone            applied to new types of materials,             for industries including defence,
or soft tissue.                             combining optical and electrical arrays,       biomedical and telecommunications.
                                            which offer the potential to detect neural
From under the earth to the stars above,
vertical integration is essential for the
                                            signals in vivo. Limited by the fibre
                                            drawing process to certain structures,
                                                                                           Nanobio
deployment of photonic technologies.                                                       Nanobio research supported by
                                            2D photon polymerisation might hold
A 3D photonic chip is at the heart of                                                      ANFF has enabled the development
                                            the pathway to new geometries.
the Dragonfly interferometric instrument                                                   of biosensors and diagnostics for early
for detecting extra-solar planets. The      Research opportunities exist at the            disease detection, health monitoring
chip, made by the ANFF Optofab              interfaces. As well as vertical integration,   and treatment. Areas of intensive
node, has been demonstrated ‘on-sky’        interfacing photonics with electronics         research and development include
at the Anglo Australian Telescope at        and fluids creates the potential for           engineered scaffolds for regenerative
Sliding Spring NSW. The node is now         smaller, faster and lighter devices.           medicine and intelligent delivery
working with Sydney Water to develop        Disruptive technologies include the use        systems for genetic material, drugs
a fibre-based system for monitoring the     of photonic integrated circuits as a           and vaccines. Australia’s reputation
network of underground water pipes          scalable platform for complex quantum          in medical technologies is highly
for concrete corrosion. Devices must        systems. Integration of single-photon          dependent on being at the forefront
be robust and able to function for long     detectors and light sources on a chip to       of nanobio and fabrication technologies
periods in dirty environments.              reduce optical losses creates a base for       that enable implementation.
                                                                                                                                 s

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2015 Australian National Fabrication Facility - Australian National ...
The translation of research requires
    s

     production of sufficient quantities of
     materials and devices for development
     and clinical trials. With our current
     strategies ANFF has enabled companies
     such as Vaxxas to progress towards
     market with the NanopatchTM and
     enabled clinicians with improved
     product ideas, such as new glaucoma
     implants, to realise designs resulting
     from decades of knowledge in just a
     matter of days. ANFF is establishing
     hospital-based facilities to ensure more
     returns like this.

     Since the establishment of ANFF,
     researchers have used the facilities to
     print a multitude of materials, including
     bioactive components (proteins, drugs
     and cells), polymers, metals and
     inorganics to fabricate structures and
     devices containing nanocomponents.
                                                                                                   combination with leading ‘lab-on-a-chip’
     This has required the development of                                The demand for
                                                                                                   modules is revolutionising point-of-care
     new tools and techniques. These new                             nanomaterials is forecast
                                                                                                   diagnosis and personalised medicine.
     printing protocols and the customised                              to grow by > 30%
     machinery used to implement them                                   annually to 2020.          The design and functionality of
     keep Australia ahead of the game.                                                             nanomaterials is tuneable for specific
                                                                                                   applications in potentially lucrative
     Future research challenges include the                                                        markets such as energy production and
     fabrication of 3D structures containing
     living cells for testing of drugs and          Advanced materials                             storage, medicine, and new device
                                                                                                   technologies. Scale-up of manufacturing
     other therapies. This will bring clinical      New materials-based markets and                will vary greatly between materials
     treatments closer to fruition and enable       technologies are emerging and                  and applications. Transitioning from
     fundamental research into cell and             Australian participation will be critical in   laboratory to commercial quantities
     developmental biology together with            the transitioning global economy. While        might mean batches of as little as
     the molecular pathways in cells that           the term nanomaterials is widely used,         one gram or as much as one tonne,
     regulate tissue morphogenesis and              we are focused on those materials that         depending on the material and market
     disease. To create these structures,           exhibit a change in their properties (for      needs.
     multi-dimensional fabrication involving        example, optical or electrical) as their
                                                                                                   The rapid growth in scientific insight has
     both hard and soft materials is needed.        size approaches 100 nm and smaller.
                                                                                                   not been matched by standardisation
     To print a kidney for drug screening,          Opening markets for nanomaterials
                                                                                                   in the production and characterisation
     for example, would require more than           in renewable energy, electronics,
                                                                                                   of materials. Challenges include
     26 different types of cells across             personal care products, medicines,
                                                                                                   controlling the shape and properties of
     different length scales. Multi-compositional   nano-composite building materials,
                                                                                                   nanoparticles to produce narrow size
     fabrication involves controlling the           and advanced coatings will depend
                                                                                                   distributions, but the repeatability of
     spatial and temporal delivery of multiple      on meeting a major challenge:
                                                                                                   materials synthesis and measurement
     cell types with multiple materials.            bridging the gap between the scientific
                                                                                                   is low. Batch inconsistencies can lead
     High speed, high resolution printing           understanding of new materials and
                                                                                                   to variable material performance.
     in the clinic, together with appropriate       scaled and standardised manufacturing.
                                                                                                   Problems include variation in the
     characterisation techniques, requires
                                                    Leading edge research now includes             raw materials; for example, the raw
     continuing development.
                                                    time resolved studies; for example, of         materials sourced from glass companies
     In addition to healthcare, new areas           microfluidic movement and novel                for the production of speciality glasses
     of work include food science; in               materials such as graphene, to                 for photonics applications contain
     particular, understanding the gut              overcome the limitations of Moore’s            varying amounts of impurities. For
     mechanical model and the implications          law. New advances in biophotonics              ‘bottom-up’ syntheses continuous-flow
     for food formulation and processing,           – exploiting engineered biomarkers             production methods are desirable,
     agriculture and water.                         and bioactive nanomaterials – in               for example in microfluidic and/or flow

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2015 Australian National Fabrication Facility - Australian National ...
macro device components. Similarly, the     MEMS devices, integrating microscale
                                             improved efficiency of III-V nanowires      mechanical or movable parts with
                                             for light harvesting must be coupled        electronic circuits, are being used to
                                             with silicon to create optical devices      fabricate sensing devices that duplicate
                                             and nanochannels must be connected          human senses to ‘see’, ‘hear’, ‘smell’,
                                             to microchannels for fluid applications,    ‘taste’, or ‘touch’. MEMS-based
                                             which are in turn connected to mm-scale     wavelength tuneable infrared miniature
                                             fluid ports and tubing.                     spectrometers are bringing colour vision
                                                                                         to infrared sensing, while monitoring
                                             Extending the activities of the
                                                                                         of MEMS nanomechanical motion
                                             ANFF Design House and the need
                                                                                         affected by preferential adsorption
                                             for computational materials design has
                                                                                         of predefined biological or chemical
                                             also been recognised.
                                                                                         agents is allowing devices to ’smell’
                                                                                         and ’taste’. These new sensing
                                             Nanoelectronics                             modalities are expected to disruptively
                                                                                         impact the already firmly established
                                             and nanomagnetics                           global dominance of MEMS in sensing
                                             Nanoelectronics and nanomagnetics           technologies commonly found in
                                             involve the study of phenomena or           smartphone, automotive, aerospace,
                                             functional properties that depend on        and military applications.
                                             electron charge and/or spin constrained     The integration of hybrid materials
chemistry unit operations. ‘Top-down’        to the nanoscale. Australia’s research      will be crucial in the advancement
production of nanoscale features can         strengths in this field include quantum     of a number of technology areas.
be scaled up by using large wafer            science and quantum technologies,           For example free-space optical
platforms or drawing towers (fibres) in      microelectromechanical systems (MEMS)       communications will require
‘pre-foundry’ facilities.                    technology, plasmonics, and                 interfacing between photonics and
In some cases, the shelf life of             nanomagnetics. In common with other         nanoelectronics. Nanowires provide a
fabricated materials is not sufficient.      themes, challenges for this area include    pathway for integration of hybrid III-V
Quality assurance, including purity,         integration, packaging and scaling.         materials on silicon because the 3D
size, and shape of individual particles/                                                 structure of the nanowires overcomes
                                             In October 2015, researchers at
structures, and the collective function of                                               the lattice mismatch in 2D planar
                                             ANFF-NSW reported the fabrication of
complex assemblies, will be required                                                     devices. Interfacing nanoelectronics
                                             a quantum logic gate in silicon in the
for end-user confidence in nanomaterial                                                  with life sciences applications; for
                                             journal Nature*. Applications of
technologies.                                                                            example, using silicon-based devices
                                             quantum computing include finance,
                                                                                         for cell sensing and readout, requires
                                             security and healthcare; for example,
Complex nanosystems – beyond                                                             that the devices be bio-compatible. Due
                                             allowing the identification of new
‘simple’ particles – will be increasingly                                                to the toxicity of some components, the
                                             medicines by greatly accelerating
important, requiring the development of                                                  challenge is to encapsulate the devices.
                                             drug design. While the UNSW
new techniques for manipulation and                                                      New and hybrid materials will allow
                                             group have patented a design for a
self-assembly of particles and materials.                                                developments in a number of areas.
                                             full scale quantum computer chip that
Nanomaterials that interact with one                                                     Approaches to tackling the limits of
                                             would allow scaling to millions of
another to ‘cooperate’ at the nanoscale                                                  Moore’s Law include new 2D materials
                                             qubits, the next steps towards a device
will impact advanced optical, electrical,                                                in addition to graphene; for example,
                                             with tens then hundreds of qubits
mechanical, and biological use.                                                          molybdenum sulphide. The rare
                                             require greater reliability and more
The interface between the nano, micro,       stringent engineering controls than         capability to fabricate mercury telluride-
and macro world is difficult to bridge.      those currently achieved in university-     based structures has allowed Australian
Advances in the fabrication of different     based cleanrooms. This requires a           researchers to develop topological
nanoparticles and nanomaterials must         major investment in infrastructure if the   insulators, which represent a disruptive
now be complemented by integration           work is to be undertaken in Australia.      technology for next generation
of these materials into devices. NV          Improved engineering controls would         electronics. Future areas of research
(nitrogen vacancy) centres in diamond        help to extend the lifetime of current      include plasmonics – with applications
are an example of a nanomaterial             nanoelectronics devices, which are          in light harvesting and optical circuits –
and can be used for single photon            often limited by oxidation and              and metamaterials.
generation. Application of this              contamination, with performance
                                                                                         * Veldhorst, M. et al. A two-qubit logic gate in
technology requires complex and              degradation occurring after just six        silicon. Nature 526, 410-414, doi:10.1038/
precise integration with micro and           months.                                     nature15263 (2015).

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2015 Australian National Fabrication Facility - Australian National ...
CASE STUDIES
      FOOD

      Australia boasts well developed agriculture and fishery
      industries, but continued innovation is needed to ensure
      that food is produced efficiently, sustainably and
      plentifully enough to service local and global markets.
      Researchers at ANFF nodes around the country are
      contributing to this challenge with novel technologies
      that can be seamlessly integrated into the food
      production chain.

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Moo juice:
                                                 detecting milk spoilage
                                                 enzymes in minutes
                                                      being tested for contaminants and                  for the introduction of the milk sample
                                                      spoilage enzymes to ensure the milk                and the biosensor. These reagents
                                                      is safe for consumption. These delays              mix within the device and provide
                                                      result in significant loss of time and             an optical result. Rapid biosensing
                                                      resources, as well a shortened lifespan            performance was successfully achieved
Dairy products are a staple in the diets
                                                      of the final product; a serious problem            in the prototype device.
of millions of people around the world.
                                                      in the context of Australia’s status as            Following the success of this project,
Australian milk production is constantly
                                                      a geographically isolated exporter                 fabrication will now commence for
growing, with the local industry
                                                      of products.                                       devices that can be used on raw milk in
producing over 9.2 billion litres during
the 2013/2014 financial year and                      New biosensing devices developed                   milk processing plants, minimising
exporting nearly half of that.                        in partnership with the ANFF-SA node               the testing stage and dramatically
                                                      provide a potential solution to these              improving the productivity of the
However, the efficiency of milk                                                                          Australian dairy industry.
                                                      issues, enabling real-time detection of
production leaves much to be desired.
                                                      spoilage enzymes in dairy products.                It is envisaged that this technology
Throughout the production process,
                                                      The research team, led by Murat Gel                will be used throughout the entire
samples spend hours or even days
                                                      from the CSIRO, used multilayer glass              milk production chain, from farmers
                                                      bonding technology to fabricate                    to transport drivers to dairy product
                                                      microfluidic devices featuring inlets              producers.
            Throughout the milk
        production process, samples
      spend hours or even days being
   tested for contaminants and spoilage
 enzymes, delays that result in significant
   loss of time and resources, as well a
         shortened lifespan of the
               final product.

• Fabricated chip in operation during real-time detection of spoilage enzymes in milk samples.
Credit: CSIRO, Manufacturing Flagship, Food and Nutrition Flagship.

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Designing tomorrow’s
                             super foods
      You’ve no doubt been told time and                       wall breakdown. If we consume cell                                Determining the
      time again to eat plenty of fibre. But                   walls that are too tough (for example,                        mechanical properties of
      what happens inside the body when                        undercooked legumes), many beneficial                        plant cell walls can provide
      you do? Researchers at the Australian                    nutrients bypass our digestive system                       important information about
      Research Council Centre of Excellence                    and are instead released by bacteria                         how the cell walls will break
      in Plant Cell Walls are investigating                    in the lower segments of the                                    down inside the body.
      how plant cell walls respond to                          gastrointestinal tract – causing gas and
      mechanical stress and how cellulose                      discomfort. On the other hand, if walls
      – the central component of plant cell                    are too soft, their rapid breakdown can
      walls – harbours beneficial dietary                      lead to undesirable surges in blood
      fibres and enhances their performance                    lipids and glucose.
                                                                                                                    scales, gather structural information,
      inside the body.
                                                               Determining the mechanical properties                and identify weak and tough spots
      Dietary fibre performs two major                         of plant cell walls can provide                      within the wall. Indeed, the failure of
      functions. In the small intestine it slows               important information about how the                  the wall may be due to the presence of
      digestion of macronutrients such as                      cell walls will break down inside the                such weak spots rather than the overall
      starch, protein and fats. In the case of                 body. The research team used the                     toughness of the wall. The ‘dip and
      starch, it helps to smooth out the blood                 Atomic Force Microscopy (AFM)                        drag’ AFM technique gives information
      glucose levels that would otherwise                      facilities at ANFF Queensland (ANFF-Q)               about the interactive forces between
      spike after a meal and cause stress to                   to develop two new techniques for                    cellulose fibres, which tells researchers
      the insulin system. In the large intestine,              assessing these properties: the multi-               how the chemistry of different wall
      dietary fibre helps to maintain the                      regime nanoindentation analysis                      components may impact the strength
      healthy balance of bacteria necessary                    technique and the ‘dip and drag’                     of the links and therefore determine the
      to keep the body hydrated and support                    AFM technique.                                       toughness of the wall.
      the immune system.
                                                               The multi-regime nanoindentation                     These techniques will pave the way for
      The perfect whole-food diet needs to                     analysis allows researchers to probe                 future studies on food systems aimed at
      fall within the ‘Goldilocks zone’ of cell                cell wall deformations at different                  understanding the relationship between
                                                                                                                    cell wall composition and microstructure,
                                                                                                                    which ultimately determines the fate of
                                                                                                                    foods within the digestive system. The
                                                                                                                    team aims to uncover the key design
                                                                                                                    rules that will enable the development
                                                                                                                    of foods – both through food processing
                                                                                                                    technologies and through agricultural
                                                                                                                    means – with optimum breakdown
                                                                                                                    patterns. Ultimately, this will promote
                                                                                                                    healthier dietary choices and enhance
                                                                                                                    the nutritional value of common foods.
      • (A) – Schematic diagram of indentation experiments using Lolium multiflorum cells confined within
         PDMS microwells. The zoomed-in sketch represents the complex layered structure of the cell surface,
         where the multi-regime nature of the elastic response originates.
         (B) – A dual illumination (bright-field and reflected light) optical micrograph of a L. multiflorum cell
         (b) confined within a PDMS micro-well (a). An AFM cantilever (d) is positioned above the cell so that
         the tip (e) is positioned approximately above the apex of the cell. The cell wall (c) can be clearly
         visualised as a shell surrounding the cell. Credit: Dr Gleb Yakubov.

12   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                                                                                                       anff.org.au
• Schematic of the LumiMEMS structure: a MEMS cantilever that bends when chemicals are absorbed.
The laser light beneath the cantilever measures the bending. Credit: Dr Gino Putrino.                            The project uses
                                                                                                               chemical sensors to

A device to ‘sniff out’
                                                                                                          develop miniaturised devices
                                                                                                         that will give people important
                                                                                                             information about their

rotting groceries                                                                                                  environment.

Imagine this: you’re at the supermarket           miniaturised devices that will give              handheld device. Different applications
doing your weekly grocery shop.                   people important information about               can be achieved by using different
Wandering through the produce section,            their environment.                               ‘functionalisation’ coatings, which
you spot the tomatoes and grab a bag.             MEMS cantilevers can be thought                  preferentially absorb the chemical
As you’re putting the tomatoes into your          of as incredibly tiny diving boards,             the device is intended to detect.
trolley, you notice some brown spots.             which bend as they absorb specific               Applications for this technology range
Simple discolouration or something                chemicals. However, the process                  from sensing rotting groceries, to
more sinister? What if there were a               happens on a microscopic scale that is           point-of-care medical sensors, to
device that could tell you, with a click          impossible for the naked eye to detect,          detection of toxic gases.
of a button, whether your spotty                  which makes it difficult to adapt for a          This new technique, dubbed LumiMEMS,
tomatoes are emitting any signs of                functional chemical sensor.                      is capable of measuring the MEMS
internal rot?
                                                  To tackle this problem, the research             movements to a degree of pico-meter
Devices like this will soon be real               team incorporated laser light paths              accuracy previously only achieved
thanks to research from the University            within a silicon chip, and used surface          using large and bulky benchtop
of Western Australia (in the ANFF-WA              micromachining techniques (depositing            instruments. Integrating the lasers into
node) that is now being commercialised            layer after layer of thin film until the         the chip itself not only achieves results
by Panorama Sydney Pty Ltd.                       desired shape is achieved) to build              on a smaller scale, but also eliminates
                                                  MEMS cantilevers above those light               any interference caused by external
Initiated by Prof. John Dell under
                                                  paths, allowing the lasers to detect             vibrations.
an ARC Discovery Project, and
developed further by Dr Gino Putrino              those subtle movements of the cantilevers        Panorama Synergy Pty Ltd joined the
and his research team, the project uses           that the human eye alone cannot.                 LumiMEMS project following proof
chemical sensors based                            Integrating this process into the chip           of concept. Test devices are currently
on microelectromechanical systems                 allows simultaneous monitoring of                being designed and fabricated for a
(MEMS) cantilevers to develop                     many cantilevers within a small,                 number of applications.

anff.org.au                                                                             ANFF THE HOME OF TOMORROW’S ENTREPRENEURS              13
SOIL & WATER

      Making up the base that our society is literally built
      upon, Australia’s soil, vegetation, biodiversity and
      water are incredibly valuable yet poorly understood
      resources. Technologies developed at ANFF
      improve our ability to observe and monitor these
      systems, and more accurately predict change.

14   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                 anff.org.au
From molecules to minerals:
understanding the mineral formation process
In everyday life we are surrounded           Collaborating with the Australian                       Aside from its scientific value, this
by the crystalline structures known as       Synchrotron, the ANFF-SA research                       research also heralds exciting new
minerals. Despite their importance,          team has achieved the first real-time                   real-world possibilities for chemical
the process by which minerals form           observations of phenomena that had                      production. Controlling reaction
is poorly understood.                        previously only been predicted using                    conditions at the nanoscale could,
                                             computer simulations. Being able to                     for example, eliminate the formation
Calcium carbonate minerals, for
                                             measure the properties of these tiny                    of unwanted by-products producing
example, are the building blocks
                                             minerals for the very first time provides               higher quality chemicals at a much
of coral reefs, a component in the
                                             important new insights into how the                     lower cost than existing technologies.
manufacture of cement, and are also
                                             mineral formation process works, and                    This technology will have applications
used as an acidity regulator in food.
                                             how to potentially control it.                          in environmental science, medicine,
Understanding how molecules arrange                                                                  engineering and other areas.
themselves into minerals would
                                                                                                     The team will now focus their efforts
provide exciting new opportunities to
                                                                                                     on new options for measuring and
understand the chemistry of a huge
                                                                                                     observing the mineral formation
range of environmentally, biologically,              Understanding how molecules
                                                                                                     process on the device itself, to
and industrially significant processes.                 arrange themselves into                      decrease the time between initiation
However, it is very technically                     minerals would provide exciting                  and observation.
challenging to observe and measure                  opportunities to understand the
the first stages of mineral formation due            chemistry of environmentally,
to their scale; many of the steps take                biologically, and industrially
place within less than a thousandth of                    significant processes.
a second, and just a few nanometres.
Researcher Dr Luke Parkinson at
ANFF-SA, in collaboration with
Dr Andrew Rose of Southern Cross
University, has recently constructed
microfluidic devices that can control
the conditions under which mineral
formation occurs.
The devices enable researchers to
mix two reagents (in the form of thick
streams of liquid), which enter the
device through separate channels. The
inner walls and channels of the device
split the streams into much thinner
streams, which then wrap around each
other to form a single thick stream.
This process – which is known as
interdigitising and can be likened to
fingers being wrapped around each
other – is repeated many times so that
the final stream is a near perfect
mixture of the original streams of liquid.
All of this happens within a few
millionths of a second, and observations
can be made using various methods,           • An early version of the free jet micromixer in operation at the Australian Synchrotron for X-ray
such as X-ray scattering.                    scattering studies of calcium carbonate mineral formation. Credit: Andrew Rose.

anff.org.au                                                                            ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                  15
TRANSPORT

      In a vast country like Australia, enabling people
      to move around in a way that is both sustainable and
      cost-effective is of critical importance. The identification
      of new potential fuel sources and technologies to
      handle them is a particular focus in the laboratories
      of ANFF facilities.

16   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                       anff.org.au
Understanding the hydrogen
release mechanism
Clean, renewable and plentiful,
hydrogen can be harnessed to fuel
the modern world. The storage of                           This work will
hydrogen in solid form, such as MgH2              contribute significantly towards
(magnesium hydride) is a technique                the development of large scale
that is being developed for deployment         commercial hydrogen storage systems,
in hydrogen stations for industrial and         and therefore towards efficient and
vehicular applications with minimal              safe hydrogen filling stations for
associated pollution.                               fuel cell vehicles in modern
The question scientists have come up                     transport systems.
against in the past is how to store
suitable quantities of hydrogen safely
while still allowing for its release in a                                                       in Scientific Reports*, a high-impact
timely and economically viable manner.      at ANFF-Q, the Ultra-High Voltage                   journal published by the Nature
One solution has focused on storing         Transmission Electron Microscope at                 publication group. This work will
hydrogen in a solid state like MgH2,        Kyushu University in Japan and the                  contribute significantly towards the
which is a combination of magnesium         Synchrotron Powder X-Ray Diffraction                development of large scale commercial
and hydrogen.                               at the Australian Synchrotron, the                  hydrogen storage systems, and
                                            research team were able to observe                  therefore towards efficient and safe
The mechanisms by which hydrogen
                                            the behavior of hydrogen release from               hydrogen filling stations for fuel cell
is added (hydriding) and removed
                                            bulk materials in real time.                        vehicles in modern transport systems.
(dehydriding) from the magnesium
has long been the subject of debate.        This unprecedented discovery led to the             *Nogita, K. et al. Evidence of the hydrogen
The common belief in the past has           publication of “Evidence of the hydrogen            release mechanism in bulk MgH2. Sci Rep 5,
been that dehydriding hydrogen from         release mechanism in bulk MgH2”                     8450, doi:10.1038/srep08450 (2015).
magnesium occurred in line with
a ‘shrinking core’ model, in which
hydrogen atoms are released from
the surface of the hydride particles.
This belief has been based on results
gleaned from studying extremely thin
samples or nanoparticles.
Researchers at the University of
Queensland in the ANFF-Q node
have recently provided new evidence
that this common belief is not true
for bulk materials, which are used
in industrial scale hydrogen storage
systems. Their project, led by Dr
Kazuhiro Nogita, has shown that in
bulk MgH2, dehydriding takes place
by a process of nucleation and growth
of magnesium grains, inside the bulk
hydride particles but not from the
surface of the particles. This finding
will influence significantly the system
operation conditions of hydrogen
storage systems.
                                            • Schematic hydrogen release mechanisms from a MgH2 grain: (a) multiple ‘nucleation and
Using advanced technology including         growth’ model for bulk MgH2 grains and (b) ‘shrinking core’ model for thin MgH2 TEM samples.
the Differential Scanning Calorimeter       Credit: (SCIENTIFIC REPORTS | 5 : 8450 | DOI: 10.1038/srep08450).

anff.org.au                                                                       ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                   17
CYBERSECURITY

      In the modern world, the cyber landscape is just as real as the physical one.
      Cyber infrastructure is relied upon by government, business, defence, emergency
      services, and the wider community, making its security of paramount importance.
      Quantum science is an area where Australia excels on an international stage,
      with two ARC Centres of Excellence active in the area.
      Quantum technologies evolving from this science will deliver many capabilities
      to the cyber world that are beyond the capacity of classical computers.
      These will be of immense importance for Australia’s cybersecurity future.

18   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                                       anff.org.au
• Artistic illustration of the electron pump. Credit: Heikka Valja.

Transistor pumps electrons one by one
Scientists have now pumped electrons            uncertainty prevented the researchers                  through a discovery project led by
with a silicon transistor more accurately       from observing higher accuracies than                  Prof. Dzurak and Dr Möttönen. They,
than ever before. This device fabricated        99.997%.                                               along with Dr Rossi, have also applied
at the ANFF-NSW node can potentially                                                                   for new ARC funds to improve the
                                                “We are all set for an amazing
be used to set a new definition for the                                                                accuracy of the pump such that it can
                                                breakthrough. Of course, we need
ampere, the unit of electric current.                                                                  serve as the realisation of the quantum
                                                hard work from scientists like
                                                                                                       current standard.
Accurate and fast electron pumping              Dr Alessandro Rossi and Tuomo
has been an important scientific and            Tanttu who were very important in this                 “Our collaboration with the Centre for
technological goal for decades. Now             research,” said Dr Möttönen.                           Metrology and Accreditation, MIKES,
scientists have pumped 500 million                                                                     has been very important in confirming
                                                “We have realised a nano-device
electrons per second with 99.997%                                                                      the accuracy of our pump,” said
                                                that has the capability of generating
accuracy. The electron pump was a                                                                      Möttönen.
                                                a highly stable macroscopic current
quantum-dot transistor fabricated using                                                                The work on the electron pump was
                                                by governing the motion of individual
scalable silicon technology.                                                                           published in the high impact academic
                                                electrons,” said Dr Rossi.
“We have now a very strong position                                                                    journal Nano Letters*.
                                                Recently the Academy of Finland
in the worldwide race for a practical           awarded a research grant of 260,000 €                  *Rossi, A. et al. An Accurate Single-Electron
quantum current source,” said a                                                                        Pump Based on a Highly Tunable Silicon
                                                to Dr Kuan Yen Tan to work in this                     Quantum Dot. Nano Letters 14, 3405-3411,
happy Dr Mikko Möttönen from                    electron pumping collaboration at QCD                  doi:10.1021/nl500927q (2014).
Aalto University, Finland.                      Labs, Aalto University. The Australian
Electron pumps promise higher accuracy          part of the research is supported by
and stability for electric current than         the Australian Research Council (ARC)
any other device. They can trigger a
                                                                                                                         This device
revolution in the international system of
units whose definition of the electric
                                                                                                                   fabricated at the ANFF-
current, the ampere, is still unsatisfactory.                                                                   NSW node can potentially be
                                                                                                                used to set a new definition
“A change in the international system of
                                                                                                                 for the ampere, the unit of
units would be an historic event,” said
                                                                                                                       electric current.
Prof. Andrew Dzurak, Director of the
NSW Node of ANFF, Australia.
“We are very close.”
Although the silicon electron pump is
fast enough, its accuracy still needs to
be improved before it can serve in the
redefinition of the ampere. To this end,
                                                • “Schematic illustration of the device used in the experiments. The transistor’s metal gates are shown
there are no obstacles in sight. In fact,
                                                in grey. Red spheres represent electrons. Accurate single-electron pumping is achieved via the interplay
the accuracy of the pump may already            of electrostatic confinement and tunnelling phenomena, graphically highlighted in yellow and pink,
be better than promised since statistical       respectively.” Credit: Heikka Valja.

anff.org.au                                                                              ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                         19
• Artist’s impression of the two-qubit logic gate device developed at UNSW. Each electron qubit (red and blue in the image) has a ‘spin’,
      or magnetic field, indicated by the arrows. Metal electrodes on the surface are used to manipulate the qubits, which interact to create an
      ‘entangled’ quantum state. Credit: Tony Melov/UNSW.

      Silicon Quantum Computing
      In October 2015, a UNSW based                           Scientia Professor and Director of the                  doing the types of calculations that
      research team cleared a final scientific                NSW Node of the Australian National                     were demonstrated in their Nature
      hurdle, putting Australia years ahead of                Fabrication Facility at UNSW.                           paper. This patent won the team
      the rest of the world in an international                                                                       a UNSW Innovation prize, and
                                                              “We’ve demonstrated a two-qubit logic
      race to build a silicon quantum                                                                                 marked the eve of their entrepreneurial
                                                              gate – the central building block of a
      computer.                                                                                                       endeavours to bring silicon quantum
                                                              quantum computer – and, significantly,
                                                                                                                      computers into the world.
      ANFF-NSW has a long history in                          done it in silicon. Because we use
      supporting local researchers in this                    essentially the same device technology                  “The next step for the project is to
      race, which will see the development                    as existing computer chips, we believe                  identify the right industry partners to
      of a computer capable of calculations                   it will be much easier to manufacture a                 work with to manufacture the full-scale
      that are beyond the reach of classical                  full-scale processor chip than for any of               quantum processor chip,” said Dzurak.
      computers and can be manufactured                       the current leading designs, which rely                 Quantum computers operate differently
      using current silicon fabrication                       on more exotic technologies.                            from regular computers. Unlike a
      technology.                                                                                                     regular bit, which is either in a “0” or
                                                              “This makes the building of a quantum
                                                                                                                      “1” state, a qubit can exist in both of
      This breakthrough, published in high                    computer much more feasible, since it
                                                                                                                      these states at once, a condition known
      profile science journal Nature*,                        is based on the same manufacturing
                                                                                                                      as a superposition. A qubit operation
      included details of a quantum logic                     technology as today’s computer
                                                                                                                      exploits this quantum weirdness by
      gate they built in silicon for the first                industry,” he added.
                                                                                                                      allowing many computations to be
      time, making calculations between two
                                                              During 2015, the team also patented                     performed in parallel (a two-qubit
      quantum bits of information possible.
                                                              a design for a full-scale quantum                       system performs the operation on 4
      “What we have is a game changer,”                       computer chip that would allow for                      values, a three-qubit system on 8, and
      said team leader Andrew Dzurak,                         millions of quantum bits (qubits), all                  so on). This is their key advantage

20   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                                                                                                      anff.org.au
David Lancaster –
                                                                                                              co-founder of
                                                                                                              Red Chip Photonics
                                                                                                              Red Chip Photonics Pty Ltd is
                                                                                                              an Australian-based start-up
                                                                                                              company co-founded by
                                                                                                              Professor David Lancaster,
                                                                                                              Director of the Laser Physics and
               • Artist’s impression of a full-scale silicon quantum computer processor, with thousands of
                                                                                                              Photonics Devices Lab at the
                             individual qubits, each one being a single electron, with its associated spin.   University of South Australia, and
                              The new UNSW design means that existing industrial silicon CMOS plants          Professor Tanya Monro, Deputy
                            can be used to make quantum processor chips. Credit: Tony Melov/UNSW.             Vice Chancellor at the University
                                                                                                              of South Australia.
that leads to their ability to perform                 aircraft; and faster searching through
computations that classical computers                  large information databases.                           The company is commercialising
cannot, such as the factorisation of                                                                          a new chip laser architecture,
                                                       This and many other related quantum                    which was created by harnessing
large numbers.
                                                       technologies are being developed                       the expertise of ANFF’s OptoFab
Such a full-scale quantum processor                    by two ARC Centres of Excellence                       node and linking ZBLAN glass
would have major applications in the                   supported by ANFF: the Centre of                       fabrication capabilities at the
cyber security, finance and healthcare                 Excellence for Quantum Computation                     University of Adelaide with the
sectors, allowing the identification                   and Communication Technology                           ultra-fast laser inscription facilities
and development of new medicines                       (CQC2T), where this work was                           at Macquarie.
by greatly accelerating the computer-                  developed; and the ARC centre of
aided design of pharmaceutical                         excellence for Engineered Quantum                      This chip laser technology has
compounds (and minimising lengthy                      Systems (EQUS).                                        already won an ARC Linkage
trial and error testing); the development                                                                     Grant, and there is significant
                                                       *Veldhorst, M. et al. A two-qubit logic gate in        interest in the new lasers from
of new, lighter and stronger materials                 silicon. Nature 526, 410-414, doi:10.1038/
spanning consumer electronics to                       nature15263 (2015).
                                                                                                              Defence, Mining, Spectroscopy
                                                                                                              and Medical companies. David
                                                                                                              is now building a team to create
                                                                                                              a major Australian-based laser
                                                                                                              company, with an intention to
                                                                                                              establish laser manufacturing
                                                                                                              in South Australia targeted at
                                                                                                              international markets.

                                                                                                              For more information, visit
                                                                                                              www.redchipphotonics.com.

• Press Conference announcing the first Quantum Logic Calculations in Silicon, with ANFF CEO Rosie
Hicks, ANFF-NSW Node Director Prof Andrew Dzurak, and CQC2T researcher Dr Menno Veldhorst.
Credit: Grant Turner, UNSW.

anff.org.au                                                                                      ANFF THE HOME OF TOMORROW’S ENTREPRENEURS              21
ENERGY

      Australia’s energy future calls for lower carbon
      emissions and low-cost renewable sources.
      Effective storage of renewable energy is also
      very important. R&D at ANFF nodes around
      Australia is supporting these objectives.

22   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS           anff.org.au
Taking the heat out of solar
The global drive towards making solar       The heatpipe plate is fabricated from             applied in a variety of other industries,
energy more competitive against low         metal materials and has a thickness               including electronics, energy storage,
cost fossil fuels has given rise to some    of a few millimeters. It can be mass-             chemical reactors and spacecraft.
amazing solar technologies. However,        produced at low cost. While there                 Future work will focus on the integration
solar energy has been held back by          is internal microflow within the plate,           of the system with PV panels and mass
an issue many might find surprising: for    the integrated device has no moving               production techniques.
every 10°C increase in operating            parts and should last for 10–20 years,
temperature, most solar cells become        making it ideal for integration with
around 5% less efficient in converting      PV panels.
sunlight into electricity.
                                            The technology developed from the                            Solar energy has been
Under the powerful Australian sun, this     project will generate benefits in the                    held back by a problem many
means that a typical house photovaltaic     energy sector by recovering up to                       might find surprising: for every
(PV) system with an optimum output of       15% of the electricity that is lost due to                10°C increase in operating
3kW per hour would have that yield          heating. The technology can also be                      temperature, most solar cells
reduced by 150W for every 10°C                                                                      become around 5% less efficient
increase in temperature. In fact, the                                                                    in converting sunlight
system could provide more power                                                                              into electricity.
on a sunny winter’s day than a sunny
summer’s day.
This largely negates the efficiency
improvements researchers have
achieved for crystalline cells over the
last few decades.
Since 2013, the CSIRO Microfluidics
team led by Dr Yonggang Zhu has
been developing a new thermal
management system to address
some of the fundamental challenges
associated with solar photovoltaic
technologies. The project is part of a
$4 million SIEF (Science and Industry
Endowment Fund) project – ‘High
performance solar cell technology with
integrated nanoplasmonic thin film
and thermal management systems.’ In
this project, Swinburne University of
Technology and CSIRO researchers
are working jointly to overcome the
efficiency losses that solar cells suffer
when exposed to high temperatures.
In tackling this problem, the CSIRO
team has developed a novel heatpipe
plate system that can be integrated
with PV panels. The system utilises
unique microscale thermal and
fluid behaviors to remove heat with
high efficiency. The devices were
fabricated and tested in the Micro
and Nanomanufacturing Laboratory,
an ANFF Victoria facility based at the
CSIRO Clayton site.                         • A prototype heatpipe plate device developed at CSIRO held by Dr Yonggang Zhu.

anff.org.au                                                                      ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                23
Mimicking leaves to transform
      sunlight into chemical energy
      The chemical industry relies heavily on
      fossil fuel-derived energy to produce
      the materials upon which we base                                    A team of research
      modern society.                                                    scientists in CSIRO is
                                                                    developing materials that can
      A more sustainable and desirable
      prospect is to use sunlight to energise
                                                                 harvest solar energy and transform
      chemical reactions, transforming the                        it into chemical potential energy
      industry into a solar chemical                                   by mimicking the natural
      manufacturing industry.                                             processes of leaves.

      A team of research scientists at CSIRO
      is developing materials that can harvest
      solar energy and transform it into                    More recently, the team has created
      chemical potential energy by mimicking                ‘super-absorber metasurfaces’ which                result in the transfer of energetic
      the natural processes of leaves. The                  can absorb nearly 100% of the incident             electrons into the semiconductor,
      research has led to publications in the               light. These structures are made from              resulting in a charge separated state
      high impact journals Nanoscale and                    a single layer of metal nanoparticles              (electron in semiconductor and hole
      Advanced Optical Materials.                           deposited on top of thin films of a                in metal) with sufficient chemical
                                                            semiconductor material that in turn is             potential energy to drive chemical
      Initially, the team used the high-resolution          supported by a mirror. In these                    transformations, such as the generation
      Electron Beam Lithography tool at the                 super-absorber metasurfaces, the metal             of hydrogen (a chemical feedstock)
      Melbourne Centre for Nanofabrication                  nanoparticles absorb light which results           from water.
      in the ANFF-Vic node to create structures             in the excitation of collective oscillations
                                                                                                               The ability to tune the optical properties
      capable of efficiently harvesting light               of surface charges commonly referred
                                                                                                               of metal nanoparticles offers the
      for driving chemical transformations                  to as surface plasmons. When the
                                                                                                               potential to create new and more
      and demonstrated a two-orders of                      metal nanoparticles are deposited on
                                                                                                               efficient ways of directing light energy
      magnitude improvement in the rate of                  semiconducting surfaces, non-radiative
                                                                                                               into targeted chemical reaction
      a model chemical reaction.                            relaxation of surface plasmons can
                                                                                                               pathways. The team envisage that
                                                                                                               these light-harvesting technologies are
                                                                                                               a potential avenue for developing
                                                                                                               a future chemical industry where
                                                                                                               chemicals are synthesised using
                                                                                                               sunlight: a renewable source of
                                                                                                               chemical potential energy.
                                                                           ������

                       100

                        80
      Absorbance (%)

                        60

                        40

                        20

                         0
                             400       600     800   1000
                                   Wavelength (nm)
      • Super-absorber concept. Top left: Fabricated structures using simple and inexpensive physical vapour
      deposition techniques. The dots are the super-absorber areas. Bottom left: Measured absorbance
      spectrum demonstrating high broadband light absorption by a device that is only c.a. 40 nm in
      thickness. Right: Diagram of one embodiment of the concept using metal nanoparticles as the active
      layer, TiO2 as the dielectric coating. Credit: Daniel Gomez.

24   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                                                                                                anff.org.au
Novel materials for better batteries
Lithium-ion batteries are currently used
in everyday devices such as portable
electronic devices and power tools.
They are also of interest for other
emerging applications including electric
vehicle batteries and for storage of
energy harvested by solar cells.

To improve both the charge capacity
and lifespan of these batteries,
alternative materials for battery
electrodes are currently being
investigated by Dr Alexey Glushenkov
from Deakin University at the Melbourne
Centre for Nanofabrication (MCN),
in the ANFF-Vic node. These new
materials are expected to store more
                                                                                                                    The composite of
charge and remain active for longer
periods of time. To select and optimise
                                                                                                              zinc iron oxide with carbon
these materials, characterisation                                                                            developed by researchers at
by electron microscopy is required                                                                         Deakin can store a large amount
to understand their structure and                                                                           of charge and retain its charge
performance.                                                                                                     storage ability for an
                                                     morphology of materials, their structure                     extended life-span.
Using the FIB-SEM at MCN, which
                                                     and their composition at the same time,
is fitted with Scanning Transmission
                                                     without the need to use multiple
Electron Microscopy (STEM) detectors,
                                                     instruments. In addition, the Focused Ion
Dr Glushenkov is able to select and                                                                   zinc iron oxide with carbon developed
                                                     Beam available on the instrument can
study new electrode materials for                                                                     by researchers at Deakin can store a
                                                     precisely slice specimens when required.
Li-ion batteries. The electrode materials                                                             large amount of charge and retain its
are synthesised by his team at Deakin                The team has recently produced a                 charge storage ability for an extended
University in a joint effort with Dr Md              novel nanocomposite material in which            life-span. The team have established
Mokhlesur Rahman. The unique                         zinc iron oxide (ZnFe2O4) is mixed               that the attractive charge storage
capability of the FIB-SEM instrument                 with carbon. Zinc iron oxide is seen             ability was achieved due to a unique
available at MCN is its ability to                   as an interesting electrode material for         nanostructure of the composite which
perform Scanning Electron Microscopy                 batteries but it usually cannot deliver          consists of chains of carbon material
(SEM) and STEM on the same                           sufficient charge storage and its ability        decorated with oxide nanoparticles.
specimen simultaneously. This allows                 to operate in a battery deteriorates             These results were published in the
researchers to understand the                        quickly. However, the composite of               Journal of Power Sources*.
                                                                                                      This project holds great potential for
                                                                                                      the development of better electrode
                                                                                                      materials for batteries and, as a result,
                                                                                                      more reliable, longer lasting and
                                                                                                      cheaper batteries with higher charge
                                                                                                      storage capacities. In turn, this benefits
                                                                                                      portable electronic devices, power
                                                                                                      tools, electric vehicles, integrated solar
                                                                                                      cell-battery packs and many other
                                                                                                      applications.
                                                                                                      *Thankachan, R. M. et al. Enhanced lithium
                                                                                                      storage in ZnFe2O4–C nanocomposite
• Low magnification (left) and high magnification (right) STEM images of ZnFe2O4-carbon               produced by a low-energy ball milling. Journal
nanocomposite electrode for Li-ion batteries. Credit: Dr Alexey Glushenkov. Reproduced from           of Power Sources 282, 462-470, doi:10.1016/j.
R.M.Thankachen et. al., Journal of Power Sources 282 (2015) 462-470.                                  jpowsour.2015.02.039 (2015).

anff.org.au                                                                                   ANFF THE HOME OF TOMORROW’S ENTREPRENEURS                25
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