Carrier Mobility Distributions: New Insights into Fundamental Electronic Transport in Advanced Semiconductor Structures. Understanding carrier mobility distributions in emerging and future semiconductor device structures can yield unprecedented insights into their fundamental electronic properties and transport processes, and into the mechanisms limiting device performance. This project aims to pioneer the systematic investigation of carrier mobility distributions by employing novel experimenta ....Carrier Mobility Distributions: New Insights into Fundamental Electronic Transport in Advanced Semiconductor Structures. Understanding carrier mobility distributions in emerging and future semiconductor device structures can yield unprecedented insights into their fundamental electronic properties and transport processes, and into the mechanisms limiting device performance. This project aims to pioneer the systematic investigation of carrier mobility distributions by employing novel experimental techniques and high-resolution mobility spectrum analysis methodologies, combined with advanced numerical simulation of electronic transport physics. The project will aim to demonstrate that the new knowledge and understanding can be employed in the optimisation and enhancement of emerging and future semiconductor technologies.Read moreRead less
Cadmium telluride/Germanium (CdTe/Ge) tandem-junction solar cells for efficiency enhancement in thin-film photovoltaics. The purpose of this project is to improve the efficiency of large-area, thin-film CdTe solar cells by using them in a tandem arrangement with thin-film Ge cells. An increase of 25 per cent in efficiency appears possible, which would greatly improve the prospects for cost-competitive photovoltaic power generation.
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100054
Funder
Australian Research Council
Funding Amount
$750,000.00
Summary
High Temperature Atomic Structure and Physical Property Analysis Facility. High temperature atomic structure and physical property analysis facility:
The aim of this project is to strengthen Australian research activities in the development of advanced materials for novel multifunctional devices, sensors, catalysts, engineering components and energy technologies through the purchase of a state-of-the-art high temperature atomic structure and physical property analysis facility. The facility is ....High Temperature Atomic Structure and Physical Property Analysis Facility. High temperature atomic structure and physical property analysis facility:
The aim of this project is to strengthen Australian research activities in the development of advanced materials for novel multifunctional devices, sensors, catalysts, engineering components and energy technologies through the purchase of a state-of-the-art high temperature atomic structure and physical property analysis facility. The facility is designed to consist of a high temperature scanning tunnelling microscope and a high temperature AC field hall effect measurement system to form a powerful and versatile high temperature atomic structure and physical property analysis facility. This is expected to provide a unique research capability in in-situ analysis of atomic and electronic behaviours with the correlated physical properties including carrier concentration and mobility at temperatures exceeding 1300 K. Read moreRead less
A new defect-control approach for mismatched heteroepitaxy semiconductors. This project aims to develop a new defect-control approach for silicon-germanium heteroepitaxial semiconductor systems to provide a route for high-throughput, low-cost, high-efficiency silicon tandem solar cells. Mismatched heteroepitaxy of semiconductors is of considerable interest for fabricating novel devices. However, the use of highly-mismatched heteroepitaxial semiconductors has been limited due to the high densitie ....A new defect-control approach for mismatched heteroepitaxy semiconductors. This project aims to develop a new defect-control approach for silicon-germanium heteroepitaxial semiconductor systems to provide a route for high-throughput, low-cost, high-efficiency silicon tandem solar cells. Mismatched heteroepitaxy of semiconductors is of considerable interest for fabricating novel devices. However, the use of highly-mismatched heteroepitaxial semiconductors has been limited due to the high densities of crystal defects which degrade the performance of both majority and minority carrier devices. This project aims to develop a new defect-control approach for heteroepitaxial semiconductors by continuous wavelength diode laser processing. With heteroepitaxial silicon-germanium as an example, the project will investigate the mechanism underlying defect-cleaning, optimised designs for best performance, and designs for high-efficiency tandem solar cells.Read moreRead less
Enhance ferromagnetic ordering by exchange coupling and defect engineering. This project aims to achieve room temperature ferromagnetism in two-dimensional materials via magnetic element doping and defect and interface engineering. Achieving high spin polarisation, high spin diffusion length and effective spin manipulation, the pre-requisites for functional spintronics devices, makes research into two-dimensional materials for spintronics applications difficult. This project could establish a so ....Enhance ferromagnetic ordering by exchange coupling and defect engineering. This project aims to achieve room temperature ferromagnetism in two-dimensional materials via magnetic element doping and defect and interface engineering. Achieving high spin polarisation, high spin diffusion length and effective spin manipulation, the pre-requisites for functional spintronics devices, makes research into two-dimensional materials for spintronics applications difficult. This project could establish a solid foundation for realising qualified spintronics materials for spintronics devices. The expected outcomes are low power, high speed, spintronics devices, enhancing Australia’s strength in spintronics research.Read moreRead less
The development of advanced diluted magnetic semiconductors through nonmagnetic element doping and defect engineering for spin transistors. This project is to develop advanced diluted magnetic semiconductor materials by nonmagnetic element doping and defects engineering for the fabrication of spin devices (for example, spin transistors) and to understand the physics and engineering science of 'spin' behaviour.
Discovery Early Career Researcher Award - Grant ID: DE160101252
Funder
Australian Research Council
Funding Amount
$321,000.00
Summary
Passivating Cadmium free Cu2ZnSn(S,Se)4 solar cell by contact engineering. The project aims to develop new solar cells made of low cost abundant elements. The cells are cadmium-free copper zinc tin sulphide (CZTS) cells formed by rear contact passivation and damage-free evaporated front layers. CZTS has the same efficiency potential as current commercial copper indium gallium selenide (CIGS) cells, but consists of low cost, abundant elements. Concepts and methods will be developed for passivatio ....Passivating Cadmium free Cu2ZnSn(S,Se)4 solar cell by contact engineering. The project aims to develop new solar cells made of low cost abundant elements. The cells are cadmium-free copper zinc tin sulphide (CZTS) cells formed by rear contact passivation and damage-free evaporated front layers. CZTS has the same efficiency potential as current commercial copper indium gallium selenide (CIGS) cells, but consists of low cost, abundant elements. Concepts and methods will be developed for passivation of CZTS solar cells via both back and front contact engineering. The cadmium- free buffer layer will be investigated and the application of CZTS will be expanded. This work may be applied to CIGS improvement and could give CZTS materials a significant role in the rapidly growing photovoltaic industry.Read moreRead less
Advanced metallisation for III-V Photovoltaic Solar Power Systems. This project aims to augment the overall electrical efficiency of concentrator photovoltaic solar systems that provide large-scale generation of cheap, clean electricity. Existing concentrator solar cells are highly efficient (>40%) but their performance is hampered by thick front-metal contacts that shade the cell. The project is expected to develop a new concentrator solar cell metalisation and insulation technology. The benefi ....Advanced metallisation for III-V Photovoltaic Solar Power Systems. This project aims to augment the overall electrical efficiency of concentrator photovoltaic solar systems that provide large-scale generation of cheap, clean electricity. Existing concentrator solar cells are highly efficient (>40%) but their performance is hampered by thick front-metal contacts that shade the cell. The project is expected to develop a new concentrator solar cell metalisation and insulation technology. The benefit of the project will be a direct increase in the system efficiency and simplified manufacturing of the concentrator solar receiver, which in turn reduces the cost of the concentrator power plant constructed by our Australian project partner RayGen Resources Pty Ltd.Read moreRead less
Supercharged silicon wafer tandem solar cells using virtual germanium substrates. International studies show that electricity from solar cells is one of the cleanest future energy sources, able to almost completely displace fossil fuels. To fulfil such a key role, costs must greatly reduce. The project targets reduced cost by greatly improved performance by stacking high quality thin cells on top of a conventional silicon cell.
Enabling technology unlocking full potential of high bandgap chalcopyrite . This project is aimed at solving the fundamental challenges of high bandgap chalcopyrite light-harvesting material to unlock its full potential as the top cell for photovoltaic tandem cell and the photocathode for photoelectrochemical applications. This will be realised by dynamic optimisation of its performance in photovoltaic solar cell device through understanding of its defects origins, enabling defects controlling t ....Enabling technology unlocking full potential of high bandgap chalcopyrite . This project is aimed at solving the fundamental challenges of high bandgap chalcopyrite light-harvesting material to unlock its full potential as the top cell for photovoltaic tandem cell and the photocathode for photoelectrochemical applications. This will be realised by dynamic optimisation of its performance in photovoltaic solar cell device through understanding of its defects origins, enabling defects controlling technologies, and microscopic carrier loss mechanism analysis via systematic macro-to-micro characterisations combined with 3D device simulation. The project completion will reinforce the next-generation tandem cell and photoelectrochemical technologies with the efficient, stable, RoHS-compliant and thin chalcopyrite devices.Read moreRead less