Understanding nanostructure in lead-containing piezoceramics - the key to improved and environmentally-friendly materials. Lead-containing piezoelectric ceramics form the basis of multi-billion dollar industries, posing an increasingly serious environmental threat due to the toxicity of lead. By obtaining a detailed understanding of how their properties arise from their nanoscale structure and chemistry, our research will lead to improvements in existing materials and aid the quest for environme ....Understanding nanostructure in lead-containing piezoceramics - the key to improved and environmentally-friendly materials. Lead-containing piezoelectric ceramics form the basis of multi-billion dollar industries, posing an increasingly serious environmental threat due to the toxicity of lead. By obtaining a detailed understanding of how their properties arise from their nanoscale structure and chemistry, our research will lead to improvements in existing materials and aid the quest for environmentally-friendly alternatives. We will use a methodology for the elucidation of local structure and dynamics in which we are world leaders. The project will further enhance our standing in the field, provide excellent research training for students and early-career researchers and highlight the power and potential of Australia's new Synchrotron and OPAL research reactor.Read moreRead less
Synthesis of novel phases from Group IV elements under extreme pressure. Materials based on the group IV elements carbon, silicon and germanium are technologically important for a wide range of current applications. When exposed to extreme pressure, these materials can form entirely new phases with novel and potentially useful properties. Since there have been few previous attempts to establish which of the new phases are stable on pressure release and to measure their properties for subsequent ....Synthesis of novel phases from Group IV elements under extreme pressure. Materials based on the group IV elements carbon, silicon and germanium are technologically important for a wide range of current applications. When exposed to extreme pressure, these materials can form entirely new phases with novel and potentially useful properties. Since there have been few previous attempts to establish which of the new phases are stable on pressure release and to measure their properties for subsequent exploitation, this project aims to use novel approaches to address these topics. The expected outcome of this project will be new phases of group IV elements with novel properties that have potential for commercial exploitation.Read moreRead less
Understanding and optimising the microstructure of Germanium-Arsenic-Selenium glasses for superior device performance. The project will seek to use a combined theoretical and experimental approach to develop 'state of the art' optical glass materials for use in integrated nonlinear optical components. Such materials could be used as optical waveguides in broadband communication systems and offer the possibility of significant improvement in telecommunication performance.
A high performance and environment-friendly piezoelectric detector platform for biosensor applications. The development of high performance, lead-free, piezoelectric films and their incorporation into devices is rapidly becoming an urgent task as a result of recent legislation banning the use of lead in electronic components. The successful development of piezoelectric biosensors, as proposed in this project, has numerous potential benefits including the prospect of rapid and cheap biosensor dev ....A high performance and environment-friendly piezoelectric detector platform for biosensor applications. The development of high performance, lead-free, piezoelectric films and their incorporation into devices is rapidly becoming an urgent task as a result of recent legislation banning the use of lead in electronic components. The successful development of piezoelectric biosensors, as proposed in this project, has numerous potential benefits including the prospect of rapid and cheap biosensor devices as well as an environment-friendly, sensitive and real time solution for on-site drug, chemical and biological sensing. Successful development of the latter would provide immediate benefit in the areas of national security, food safety as well as in environmental and health monitoring. Read moreRead less
Integrated magneto-optic waveguide materials and devices. We aim to develop chalcogenide glass films for fabricating integrated waveguide magneto-optic (MO) devices as a radical alternative to the use of crystalline MO materials that have proven difficult to manufacture in integrated form. Using our ultra-fast pulsed laser deposition (UFPLD) technique we will produce a wide range of chalcogenide glass compositions through combinatorial materials synthesis and assess them for magneto-optic activ ....Integrated magneto-optic waveguide materials and devices. We aim to develop chalcogenide glass films for fabricating integrated waveguide magneto-optic (MO) devices as a radical alternative to the use of crystalline MO materials that have proven difficult to manufacture in integrated form. Using our ultra-fast pulsed laser deposition (UFPLD) technique we will produce a wide range of chalcogenide glass compositions through combinatorial materials synthesis and assess them for magneto-optic activity. UFPLD will also be used to deposit high optical quality films for device prototyping. We will design and fabricate prototype MO components which are essential, but currently unavailable, for use as optical isolators in integrated optics.Read moreRead less
Exploiting shear to form new structures of carbon. This project aims to create new, technologically-interesting, materials by combining shear (sliding forces) with high pressure. The work will use both modelling and experiments to understand the pathways to form new materials such as a different form of diamond that is predicted to be harder than regular diamond. Such a material could be used in coatings for cutting tools or ultra-low-scratch surfaces. Expected outcomes include both an understan ....Exploiting shear to form new structures of carbon. This project aims to create new, technologically-interesting, materials by combining shear (sliding forces) with high pressure. The work will use both modelling and experiments to understand the pathways to form new materials such as a different form of diamond that is predicted to be harder than regular diamond. Such a material could be used in coatings for cutting tools or ultra-low-scratch surfaces. Expected outcomes include both an understanding of the importance of shear in the study of high-pressure science, and as a tool to manufacture new functional materials.Read moreRead less
Coupled Structural and Elastic Response Studies of the Phase Transformation Behaviour of Environment-Friendly, Lead-free Piezoceramics. The ultimate aim of this project is to identify high performance, environment-friendly i.e. lead free, piezoceramic materials capable of replacing the currently market dominant, lead-based materials. Such piezoceramics have widespread industrial applications. Understanding the factors that control the capacity of such materials to respond to applied stress or el ....Coupled Structural and Elastic Response Studies of the Phase Transformation Behaviour of Environment-Friendly, Lead-free Piezoceramics. The ultimate aim of this project is to identify high performance, environment-friendly i.e. lead free, piezoceramic materials capable of replacing the currently market dominant, lead-based materials. Such piezoceramics have widespread industrial applications. Understanding the factors that control the capacity of such materials to respond to applied stress or electric field is critical to the discovery, optimization and, ultimately, industrial exploitation of such materials. Through comprehensive experimental and theoretical studies of a number of such materials this project will enhance the ability of industry to develop new and improved materials. Development of advanced materials is a designated National Research Priority area. Read moreRead less
Rare Earth doped chalcogenide glass films for on-chip optical amplifiers. The project will contribute to Australia's strong record of achievement in photonics technology. It has the potential to migrate photonic chip technology for all-optical processing from laboratory demonstrations to a commercially viable technology. If this is achieved commercialisation through a start-up company will become possible. All-optical processing is an advanced technology that will help increase the speed and the ....Rare Earth doped chalcogenide glass films for on-chip optical amplifiers. The project will contribute to Australia's strong record of achievement in photonics technology. It has the potential to migrate photonic chip technology for all-optical processing from laboratory demonstrations to a commercially viable technology. If this is achieved commercialisation through a start-up company will become possible. All-optical processing is an advanced technology that will help increase the speed and the bandwidth of optical communications systems and the internet.Read moreRead less
Flow process and visible-light driven reactions for polymer manufacturing. This project aims to develop rapid, scalable light-driven continuous flow processing techniques that allow the production of value-added synthetic polymers that cannot be achieved by existing technologies. The project will take advantage of the spatio-temporal control of the light mediated polymerisation with flow process to achieve control over the primary structure, the sequential arrangement of monomer units in a polym ....Flow process and visible-light driven reactions for polymer manufacturing. This project aims to develop rapid, scalable light-driven continuous flow processing techniques that allow the production of value-added synthetic polymers that cannot be achieved by existing technologies. The project will take advantage of the spatio-temporal control of the light mediated polymerisation with flow process to achieve control over the primary structure, the sequential arrangement of monomer units in a polymer chain and the molecular weight distribution. The project will result in the preparation of functional polymers containing a specific arrangement of monomers in the polymer chain and a precise distribution of polymer chains. The development of such process will result in the development of advanced materials.Read moreRead less
Increasing solid electrolyte conductivity through defect design. This project aims to engineer electrolyte materials, based on organic ionic plastic crystals, and use isomeric doping to improve the ionic conductivity. The development of safer batteries relies on eliminating the volatile and flammable solvents commonly used as the electrolyte. Improving the safety and performance of batteries is important as electricity costs increase. Solid state ionic electrolytes can address leakage and volati ....Increasing solid electrolyte conductivity through defect design. This project aims to engineer electrolyte materials, based on organic ionic plastic crystals, and use isomeric doping to improve the ionic conductivity. The development of safer batteries relies on eliminating the volatile and flammable solvents commonly used as the electrolyte. Improving the safety and performance of batteries is important as electricity costs increase. Solid state ionic electrolytes can address leakage and volatility problems, but the conductivity must be improved if these materials are to support high battery power. The project’s electrolyte materials can be used in lithium metal batteries, which have higher theoretical energy densities than traditional lithium ion batteries. This project will develop new solid state electrolytes, with improved conductivity, and use these materials in emerging lithium battery technologies.Read moreRead less