High efficiency III-V solar cells based on low-dimensional quantum confined heterostructures. There is no doubt that clean and sustainable solar energy is one of the most viable energy sources to address the issues of climate change, global warming and depletion of conventional energy sources. With the great advantages offered by quantum confined nanostructures and nanotechnology, this project may lead to substantial efficiency improvement of current III-V solar cells (already higher efficiency ....High efficiency III-V solar cells based on low-dimensional quantum confined heterostructures. There is no doubt that clean and sustainable solar energy is one of the most viable energy sources to address the issues of climate change, global warming and depletion of conventional energy sources. With the great advantages offered by quantum confined nanostructures and nanotechnology, this project may lead to substantial efficiency improvement of current III-V solar cells (already higher efficiency than Si solar cells), making great contribution to the society and Nation in the areas of science, technology, environment, and economy.Read moreRead less
Materials Optimization and Interfacial Engineering of Cobalt and Europium Codoped ZnO for Multifunctional Spintronic Devices. Recent advances in new materials engineering holds a promise of surmounting the miniaturization limits of silicon technology by exploiting the spin of electrons in semiconductors. Spin transistor is among a number of nanoscale devices that may revolutionize telecommunications, computing and daily life. Current transistors are electronic circuits that make up most semico ....Materials Optimization and Interfacial Engineering of Cobalt and Europium Codoped ZnO for Multifunctional Spintronic Devices. Recent advances in new materials engineering holds a promise of surmounting the miniaturization limits of silicon technology by exploiting the spin of electrons in semiconductors. Spin transistor is among a number of nanoscale devices that may revolutionize telecommunications, computing and daily life. Current transistors are electronic circuits that make up most semiconductors; an international market will grow to US$1000bn per year in 2013. In a few years, the spin transistor will be on par with electronics. Success of this program will facilitate the development of spintronic materials and technologies, and also generated patents and intellectual properties, thus resulting in revenue for Australia through their commercialisations.Read moreRead less
Biomedical imaging with spins in nanoparticles: from single cell to whole-body scanning. The engineering of new biomedical technology is critical in underpinning our understanding of physiology and in the early detection of disease. This project will construct novel instrumentation for investigating normal and diseased physiology using bioagents based on diamond and ruby nanoparticles. The imaging and tracking techniques proposed are non-invasive, nontoxic, and provide high-resolution access to ....Biomedical imaging with spins in nanoparticles: from single cell to whole-body scanning. The engineering of new biomedical technology is critical in underpinning our understanding of physiology and in the early detection of disease. This project will construct novel instrumentation for investigating normal and diseased physiology using bioagents based on diamond and ruby nanoparticles. The imaging and tracking techniques proposed are non-invasive, nontoxic, and provide high-resolution access to specific physiological interactions of paramount importance in, for instance, understanding cancer pathways and developing strategies for targeted drug delivery.Read moreRead less
Photonic structures for high efficiency, low cost solar cells. Photovoltaics is a non-polluting, environmentally sustainable way of converting sunlight directly to electricity. The reduction of cost is the most important issue in photovoltaic solar energy conversion. This project will lead to the development of solar cell structures and techniques that have the potential to significantly reduce the cost of thin film solar cells, which are the major contender for the lowest cost photovoltaic te ....Photonic structures for high efficiency, low cost solar cells. Photovoltaics is a non-polluting, environmentally sustainable way of converting sunlight directly to electricity. The reduction of cost is the most important issue in photovoltaic solar energy conversion. This project will lead to the development of solar cell structures and techniques that have the potential to significantly reduce the cost of thin film solar cells, which are the major contender for the lowest cost photovoltaic technology. If the cost of photovoltaics was sufficiently reduced it could have a major impact on reducing greenhouse gas emissions and pollution in Australia.Read moreRead less
Development of growth strategies to fabricate wide band gap ferromagnetic semiconductors for spin electronics applications. Spin Electronics technology will enable a revolutionary class of electronic devices. Gallium nitride (GaN) containing transition metals (TM) (eg Mn, Ni and Fe) is a very promising dilute magnetic semiconductor for practical spintronics applications as this material exhibits magnetic behaviour above room temperature. However, electronic and magnetic properties of this new cl ....Development of growth strategies to fabricate wide band gap ferromagnetic semiconductors for spin electronics applications. Spin Electronics technology will enable a revolutionary class of electronic devices. Gallium nitride (GaN) containing transition metals (TM) (eg Mn, Ni and Fe) is a very promising dilute magnetic semiconductor for practical spintronics applications as this material exhibits magnetic behaviour above room temperature. However, electronic and magnetic properties of this new class of semiconductors have not yet been optimised. This project aims to develop and test a new growth strategy, known as the co-doping method for the fabrication of high quality TM doped GaN. A broad range of complementary advanced spectroscopic techniques will be used to evaluate and refine this new fabrication method.Read moreRead less
Exploring the Dynamics of Nanostructure Self-Organisation during Compound Semiconductor Epitaxy. The application of LEEM to GaAs and InAs will be a world first, positioning Australia at the forefront of nanoscale self-organisation, leading to important international recognition and publicity. The spectacular movies obtained will revolutionise our basic understanding of compound semiconductor self-organisation and facilitate an improved control over nanostructure fabrication using MBE. This will ....Exploring the Dynamics of Nanostructure Self-Organisation during Compound Semiconductor Epitaxy. The application of LEEM to GaAs and InAs will be a world first, positioning Australia at the forefront of nanoscale self-organisation, leading to important international recognition and publicity. The spectacular movies obtained will revolutionise our basic understanding of compound semiconductor self-organisation and facilitate an improved control over nanostructure fabrication using MBE. This will generate entirely new device structures relevant to the frontier technologies of photonics and quantum information processing. The project will provide high level training for post-graduate and honours students in nanoscale characterisation and synchrotron science.Read moreRead less
Atomistic mechanisms of the mechanical behaviour of nanostructured silicon carbide films. Advanced silicon carbide (SiC) ceramics are leading candidates for applications in high-power, high-speed machining and high-temperature structural components. Superhardness and high ductility (or high fracture toughness), which have been realized in some nanostructured (ns) SiC films and nanowires, respectively, are desirable properties for many applications. This project aims to understand the mechanisms ....Atomistic mechanisms of the mechanical behaviour of nanostructured silicon carbide films. Advanced silicon carbide (SiC) ceramics are leading candidates for applications in high-power, high-speed machining and high-temperature structural components. Superhardness and high ductility (or high fracture toughness), which have been realized in some nanostructured (ns) SiC films and nanowires, respectively, are desirable properties for many applications. This project aims to understand the mechanisms behind the exceptional properties in ns SiC and to explore the possibility of realizing the two properties in the same ns SiC. The results obtained from this research will be very important for guiding the structural design of SiC with exceptional mechanical properties which will have a wide range of structural applications.Read moreRead less
Epitaxial growth of Zn-VI/III-N nanowire-based structures for future device applications. This project, aiming for developing zinc and nitrogen epitaxial nanowires, addresses specific National Research Priorities in the areas of breakthrough science, frontier technology and advanced materials. Outcomes will significantly advance the understanding of the evolution of epitaxial nanowire structures and their demonstrated properties. This project will provide informative guidelines for designing, de ....Epitaxial growth of Zn-VI/III-N nanowire-based structures for future device applications. This project, aiming for developing zinc and nitrogen epitaxial nanowires, addresses specific National Research Priorities in the areas of breakthrough science, frontier technology and advanced materials. Outcomes will significantly advance the understanding of the evolution of epitaxial nanowire structures and their demonstrated properties. This project will provide informative guidelines for designing, developing and manufacturing nanowire-based nanostructures for future nanodevices and nanosystems, which is strategically important to Australia's emerging high-tech industries. This project will also enhance the international reputation and impact of Australian research in the internationally focused field of nanoscience and nanotechnology.Read moreRead less
Epitaxial Nanowires for Optoelectronic Device Applications. Nanotechnology is expected to make a major impact in all industrial sectors and multi-trillion dollar economic activity is expected by 2020. Nanowires are considered to be new building blocks for future electronics and photonics technologies and our aim is to develop nanowire based technologies which are of benefit to Australian industry. This project will develop patentable technologies as well as enhance international links with UK, ....Epitaxial Nanowires for Optoelectronic Device Applications. Nanotechnology is expected to make a major impact in all industrial sectors and multi-trillion dollar economic activity is expected by 2020. Nanowires are considered to be new building blocks for future electronics and photonics technologies and our aim is to develop nanowire based technologies which are of benefit to Australian industry. This project will develop patentable technologies as well as enhance international links with UK, China, Sweden and Norway. Training of postgraduate students and post-doctoral fellows in the field of nanotechnology will be of immense benefit to Australian industries, research and academic institutions. Read moreRead less
Non-linear dynamics in electronic systems and devices under intense terahertz radiation. Non-linear interactions allow for a detailed and intricate probing of materials. Sufficiently high-power light directed at a subject can yield spectroscopic data about multiple material parameters, providing a unique diagnostic tool for many applications. We propose to study the non-linear dynamic properties of electronic systems and devices under various external conditions. A thorough understanding of non- ....Non-linear dynamics in electronic systems and devices under intense terahertz radiation. Non-linear interactions allow for a detailed and intricate probing of materials. Sufficiently high-power light directed at a subject can yield spectroscopic data about multiple material parameters, providing a unique diagnostic tool for many applications. We propose to study the non-linear dynamic properties of electronic systems and devices under various external conditions. A thorough understanding of non-linear properties will accelerate development of new optoelectronic device in the terahertz frequency regime. Examples of these devices are oscillators and sensors.Read moreRead less