Analysis, simulation, fabrication and characterization of reliable, robust and scalable compact cooling elements based on semiconductor nanostructures. Modern electronic, microelectronic and optoelectronic devices generally work better when they are cooler. We aim to develop a semiconductor nanostructure cooling element which directly integrates into existing devices. The solid-state cooling element will be reliable, robust, scalable and operate in any orientation. The basis of operation is ....Analysis, simulation, fabrication and characterization of reliable, robust and scalable compact cooling elements based on semiconductor nanostructures. Modern electronic, microelectronic and optoelectronic devices generally work better when they are cooler. We aim to develop a semiconductor nanostructure cooling element which directly integrates into existing devices. The solid-state cooling element will be reliable, robust, scalable and operate in any orientation. The basis of operation is thermionic emission - electrons are the working fluid. Our project combines (1) analysis and simulation, (2) fabrication of nanostructures and (3) experimental test-benching using optical and electrical methods. The outcome of this research has the potential to revolutionize cooling of modern electronic and photonic systems, from computer motherboards to mobile phones.Read moreRead less
Synthesis of functionalised metal oxide beads with hierarchical pores for radionuclide and metal sequestration. The central aim of this project is to fabricate nanostructured materials to address the worldwide issue of nuclear waste. These novel materials, with tailored porosity and surface functionality, will decrease both radioactive waste volume and the potential for environmental risk. The collaboration between the Caruso group at the University of Melbourne and the Luca group at ANSTO will ....Synthesis of functionalised metal oxide beads with hierarchical pores for radionuclide and metal sequestration. The central aim of this project is to fabricate nanostructured materials to address the worldwide issue of nuclear waste. These novel materials, with tailored porosity and surface functionality, will decrease both radioactive waste volume and the potential for environmental risk. The collaboration between the Caruso group at the University of Melbourne and the Luca group at ANSTO will educate more scientists and students in the areas of nuclear science and engineering, and the environmental impact of nuclear power generators. Such expertise is currently in high demand around the world, thereby enhancing Australia's position in the global nuclear field.Read moreRead less
High efficiency thermoelectric nanomaterials. High efficiency thermoelectric power generators and refrigerators will have a wealth of applications in the automotive, semiconductor and power generation industries, among many others. Such technology could be used to recycle a significant fraction of the waste heat produced in industrial processes or in car engines, reducing fuel consumption and greenhouse gas emissions, or to produce high efficiency domestic refrigerators with no moving parts. Thi ....High efficiency thermoelectric nanomaterials. High efficiency thermoelectric power generators and refrigerators will have a wealth of applications in the automotive, semiconductor and power generation industries, among many others. Such technology could be used to recycle a significant fraction of the waste heat produced in industrial processes or in car engines, reducing fuel consumption and greenhouse gas emissions, or to produce high efficiency domestic refrigerators with no moving parts. This project will improve our theoretical understanding of the fundamental physics which underlies the operation of thermoelectric power generators and refrigerators, and will assist the design and optimisation of the next generation of high efficiency thermoelectric nanomaterials.Read moreRead less
Nano-scale tuning: a path to functional materials for hydrogen storage. If the nano-stores discovered can be taken from bench to markets, the way energy is produced and used will be revolutionised. New markets based on clean energy technologies will appear. The emergence of miniaturised hydrogen stores would create unforeseen markets. By utilising Australia's abundant resources in lithium (Li), magnesium (Mg) and aluminium (Al) to store hydrogen, the beneficiaries would be the Australian industr ....Nano-scale tuning: a path to functional materials for hydrogen storage. If the nano-stores discovered can be taken from bench to markets, the way energy is produced and used will be revolutionised. New markets based on clean energy technologies will appear. The emergence of miniaturised hydrogen stores would create unforeseen markets. By utilising Australia's abundant resources in lithium (Li), magnesium (Mg) and aluminium (Al) to store hydrogen, the beneficiaries would be the Australian industry and academia interested in the knowledge gained and the application of the unique features of nano-hydride materials. By reducing the emissions of greenhouse gases, society would also benefit from a cleaner environment and better health.Read moreRead less
Novel nanostructured alloy membranes for hydrogen permeation: Advanced materials technology for renewable energy. Hydrogen purification by alloy membranes is a key technology in maintaining the greenhouse gas emission low while using the fossil fuels including coal for energy generation. However, the alloys currently available for the membrane separation are mostly based on a costly precious metal palladium, making the application of the technology limited. The proposed non-equilibrium material ....Novel nanostructured alloy membranes for hydrogen permeation: Advanced materials technology for renewable energy. Hydrogen purification by alloy membranes is a key technology in maintaining the greenhouse gas emission low while using the fossil fuels including coal for energy generation. However, the alloys currently available for the membrane separation are mostly based on a costly precious metal palladium, making the application of the technology limited. The proposed non-equilibrium material processing will enable us to fabricate novel nanocomposite niobium-based alloys to which excellent hydrogen permeation characteristics are expected with high economic viability. Successful development of the proposed alloys could enhance the competitiveness of the Australian coal industry worldwide.Read moreRead less
Silicon All-Optical Nanophotonic Devices for 160Gb/s Systems. With the exponential growth in global bandwidth demand, the speed, cost, size, and energy requirements of telecommunications equipment are reaching a crisis point. This project will pioneer ultra-high speed silicon integrated all-optical signal processing devices that will provide faster, cheaper and more energy efficient solutions than current electronic based approaches. In doing so, this will also directly benefit the Australian ph ....Silicon All-Optical Nanophotonic Devices for 160Gb/s Systems. With the exponential growth in global bandwidth demand, the speed, cost, size, and energy requirements of telecommunications equipment are reaching a crisis point. This project will pioneer ultra-high speed silicon integrated all-optical signal processing devices that will provide faster, cheaper and more energy efficient solutions than current electronic based approaches. In doing so, this will also directly benefit the Australian photonics, telecommunications, and defence industries. It will use novel structures such as nanowire waveguides and micro-ring resonators to demonstrate all-optical signal regeneration, wavelength conversion, demultiplexing and other functions at speeds up to 160Gb/s.Read moreRead less
Tailoring metal-organic framework catalysts for carbon dioxide conversion. Reducing the greenhouse gas, CO2, into valuable fuels would be beneficial for relieving energy shortage and improving global sustainability. This project aims to synthesise high-performance heterogeneous catalysts for CO2 conversion by periodic ordering photo-redox metalloligand and thermal-catalytically active metal oxide clusters in metal-organic frameworks (MOFs). This approach is expected to deliver a unique single-si ....Tailoring metal-organic framework catalysts for carbon dioxide conversion. Reducing the greenhouse gas, CO2, into valuable fuels would be beneficial for relieving energy shortage and improving global sustainability. This project aims to synthesise high-performance heterogeneous catalysts for CO2 conversion by periodic ordering photo-redox metalloligand and thermal-catalytically active metal oxide clusters in metal-organic frameworks (MOFs). This approach is expected to deliver a unique single-site metal-organic framework catalyst with high reaction-activity and chemo-selectivity in converting CO2 into valuable chemicals. This advancement will provide significant benefits for Australia’s emerging chemical manufacturing industry, and ultimately leading to a carbon-neutral energy economy and environment.Read moreRead less
Radiative Cooling Tuned to the Spectral and Directional Infra-red Properties of the Atmosphere. Growth in the demand for cooling in Australia is a main driver for new power stations while global warming adds to cooling and refrigeration needs. This project extends Australia's leading expertise in solar control using nanoparticles into the area of active and passive cooling, enabling cooling at night to temperatures well below ambient, with little or no power and low cost. 'Cool' will be stored ....Radiative Cooling Tuned to the Spectral and Directional Infra-red Properties of the Atmosphere. Growth in the demand for cooling in Australia is a main driver for new power stations while global warming adds to cooling and refrigeration needs. This project extends Australia's leading expertise in solar control using nanoparticles into the area of active and passive cooling, enabling cooling at night to temperatures well below ambient, with little or no power and low cost. 'Cool' will be stored simply for use the next day. Our systems also allow efficient and low cost water condensation from the atmosphere. They will be of major benefit to developing countries in warm climate zones. High value products will follow, from paints to low cost cooling technology with energy savings around 50% or more.Read moreRead less
New generation nanostructured coatings with combined control of spectral and angular emissivity. The aim of this project is to generate a complete scientific understanding of a new generation of hybrid, tri-layered, optically-selective coatings. The new design paradigm combines the very different attributes of smooth and nanostructured layers so that superior and simultaneous control of both spectral and angular properties of light can be achieved. Existing theory will be extended so that quanti ....New generation nanostructured coatings with combined control of spectral and angular emissivity. The aim of this project is to generate a complete scientific understanding of a new generation of hybrid, tri-layered, optically-selective coatings. The new design paradigm combines the very different attributes of smooth and nanostructured layers so that superior and simultaneous control of both spectral and angular properties of light can be achieved. Existing theory will be extended so that quantitative analyses of these new systems and other hybrids become possible and new and improved fabrication techniques will be developed. The work will unlock new technological possibilities for coating performance and application and is likely to be associated with significant improvements in energy conservation and generation. Read moreRead less
Efficient, directional and spin-controlled nanoscale light sources. This project aims to develop a new class of functional light sources by harnessing the nanoscale interactions between emitters and metallic or dielectric nanoparticles. Understanding of these interactions would lead to efficient energy extraction from emitters to far-field radiation; in addition, new functionalities including highly directional emission, circularly polarised emission, and super-radiance would be realised. The ou ....Efficient, directional and spin-controlled nanoscale light sources. This project aims to develop a new class of functional light sources by harnessing the nanoscale interactions between emitters and metallic or dielectric nanoparticles. Understanding of these interactions would lead to efficient energy extraction from emitters to far-field radiation; in addition, new functionalities including highly directional emission, circularly polarised emission, and super-radiance would be realised. The outcomes of this project are expected to enable unprecedented control of light emission beyond current capabilities and will revolutionise lighting and display technologies. Furthermore the project aims to open new opportunities for the development of bright bio-medical fluorescent markers as well as deterministic sources of quantum light.Read moreRead less