Hot-swappable and High-efficient Grid-connected Power Electronics System For Photovoltaic Modules with Direct Power Transfer Technique. The project aims to increase the amount of available energy intake from photovoltaic panels, lengthen lifetime of power DC/AC inverter, reduce the amount of energy waste due to inefficient inverter by introducing new switching power converters with direct power transfer technique - bypassing part of the input power without repeatedly processing it, and using lon ....Hot-swappable and High-efficient Grid-connected Power Electronics System For Photovoltaic Modules with Direct Power Transfer Technique. The project aims to increase the amount of available energy intake from photovoltaic panels, lengthen lifetime of power DC/AC inverter, reduce the amount of energy waste due to inefficient inverter by introducing new switching power converters with direct power transfer technique - bypassing part of the input power without repeatedly processing it, and using long-life ceramic type capacitors. Development of this technology will mean reduced total cost, improved product lifetime and reduced global warming. It will lead to a reliable product that will help to put the Australian switching power converter industry into a leading position internationally in the design and manufacture of DC/AC inverters.Read moreRead less
Theoretical study and experimental verification of low cost, integrated and efficient AC/DC power supplies using time-multiplexing control. The project aims to reduce the amount of energy waste and cost due to inefficient AC/DC power supplies by introducing a novel power supply technique - combining conventional two-stage power circuits and using time-multiplexing control. Improvements in power supply efficiency and size will mean reduced total cost, improved product lifetime and reduced heating ....Theoretical study and experimental verification of low cost, integrated and efficient AC/DC power supplies using time-multiplexing control. The project aims to reduce the amount of energy waste and cost due to inefficient AC/DC power supplies by introducing a novel power supply technique - combining conventional two-stage power circuits and using time-multiplexing control. Improvements in power supply efficiency and size will mean reduced total cost, improved product lifetime and reduced heating up of the environment, leading to a reliable product that is particularly relevant to the Australian switching power supply industry. The development of this technology will help to put Australia into a leading position internationally in the design and manufacturing of AC/DC power supply.Read moreRead less
Towards a ten percent efficient organic solar cell. Organic photovoltaic (OPV) cells have the potential to reduce costs of electricity production significantly below those using traditional solar cells. Successful development of a 10% efficient organic solar cell of improved durability would not only increase the use of this environmentally sustainable energy source but also increase Australian manufacturing opportunities. Solar photovoltaics has been identified as one of the most desirable futu ....Towards a ten percent efficient organic solar cell. Organic photovoltaic (OPV) cells have the potential to reduce costs of electricity production significantly below those using traditional solar cells. Successful development of a 10% efficient organic solar cell of improved durability would not only increase the use of this environmentally sustainable energy source but also increase Australian manufacturing opportunities. Solar photovoltaics has been identified as one of the most desirable future energy options with the potential to displace fossil fuels and result in better utilisation of hydroelectricity resources. However, significant cost reduction as targeted by this project is required to exploit the full potential of this environmentally benign technology.Read moreRead less
Microelectronic Applications of Improved Silicon Light Emission. While semiconductor silicon chips have been the workhorse of the microelectronics revolution, more complex semiconductor materials have driven the communications revolution. Australian developments during 2001 have largely dispelled the myth that silicon is fundamentally a poor emitter of light. This project aims to build on this work by developing silicon light emitters suitable for integration into high density integrated circu ....Microelectronic Applications of Improved Silicon Light Emission. While semiconductor silicon chips have been the workhorse of the microelectronics revolution, more complex semiconductor materials have driven the communications revolution. Australian developments during 2001 have largely dispelled the myth that silicon is fundamentally a poor emitter of light. This project aims to build on this work by developing silicon light emitters suitable for integration into high density integrated circuits, adding a new dimension to the capabilities of these circuits, driving microelectronics and the information age to the next stage of development.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
Development of polycrystalline silicon thin-film photovoltaic devices on glass. This project addresses a range of key issues relevant to crystalline silicon solar cells bound by the common feature of reducing the cost of solar photovoltaic electricity by fabricating thin films of good-quality polycrystalline silicon on cheap glass substrates. The project is significant because thin-film polycrystalline silicon solar cells on glass can dramatically lower the cost of solar electricity. However, ....Development of polycrystalline silicon thin-film photovoltaic devices on glass. This project addresses a range of key issues relevant to crystalline silicon solar cells bound by the common feature of reducing the cost of solar photovoltaic electricity by fabricating thin films of good-quality polycrystalline silicon on cheap glass substrates. The project is significant because thin-film polycrystalline silicon solar cells on glass can dramatically lower the cost of solar electricity. However, at present such cells are not yet produced industrially. This project is expected to lead to major scientific/technical advances with this hugely promising power generation technology, and to bring forward the industrial mass production of these urgently needed devices.Read moreRead less
Microfabrication of integrated silicon optical cross-switches interfaced with silica optical waveguides. Project aims to fabricate novel silicon based optical switches in the form of cantilevered mirrors integrated to interface with silica optical waveguides integrated collimation lens. Significantly, it paves the way for low cost integration of optical switches with array waveguides for an all-optical dynamically reconfigurable dense wavelength division multiplexing network used in modern broad ....Microfabrication of integrated silicon optical cross-switches interfaced with silica optical waveguides. Project aims to fabricate novel silicon based optical switches in the form of cantilevered mirrors integrated to interface with silica optical waveguides integrated collimation lens. Significantly, it paves the way for low cost integration of optical switches with array waveguides for an all-optical dynamically reconfigurable dense wavelength division multiplexing network used in modern broadband telecommunication systems. International market demand for such devises is enormous. Expected outcomes include the development of arrays of low loss 2x2 integrated optical waveguide cross-switches prototypes, securing the intellectual property rights and disseminating the work internationally.Read moreRead less
High efficiency thin-film gallium arsenide solar cells. Recent developments in GaAs-based solar cells have led to efficiencies above 30%. Widespread adoption of GaAs-based solar cells for space applications has also brought about large reductions in material costs. However, GaAs cells are still much more expensive than silicon cells. This application addresses the development of a manufacturable technique for lifting off thin films of GaAs. This approach allows a significantly reduced cost due ....High efficiency thin-film gallium arsenide solar cells. Recent developments in GaAs-based solar cells have led to efficiencies above 30%. Widespread adoption of GaAs-based solar cells for space applications has also brought about large reductions in material costs. However, GaAs cells are still much more expensive than silicon cells. This application addresses the development of a manufacturable technique for lifting off thin films of GaAs. This approach allows a significantly reduced cost due to reduced materials usage, while maintaining high efficiency. Light-trapping for lifted-off cells will also be developed, which will allow the theoretical limit to performance to be approached, and fundamental processes in GaAs to be investigated.
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Development of Bulk Silicon Photovoltaic Devices. This project addresses a range of key issues relevant to silicon solar cells bound by the common feature of reducing cell costs by improving the cell's energy conversion efficiency. An innovative component of the project involves merging two streams of work whereby the high performance attributes of the world record efficiency laboratory devices are adapted for use with state-of-the-art commercial Solar Cell technology. The corresponding develo ....Development of Bulk Silicon Photovoltaic Devices. This project addresses a range of key issues relevant to silicon solar cells bound by the common feature of reducing cell costs by improving the cell's energy conversion efficiency. An innovative component of the project involves merging two streams of work whereby the high performance attributes of the world record efficiency laboratory devices are adapted for use with state-of-the-art commercial Solar Cell technology. The corresponding developments will be particularly important in an industry set to grow by more than a factor of ten over the next decade.Read moreRead less
Vector quantization approaches to nonlinear stochastic estimation. Many problems in health, economics, telecommunications and industrial control can be formulated as estimation problems with uncertain data. This project is aimed at developing a novel class of algorithms aimed at high complexity estimation problems. If successful, the project will provide new approaches to these problems.