Luminescence-based imaging system for industrial tandem solar cells. This project aims to develop an Australian-made inspection system for next-generation solar cells. Besides allowing, for the first time, fast measurements of large-size tandem solar cells, the system will also enable the determination of key parameters that cannot be measured by current methods. This capability is expected to generate new knowledge in the areas of perovskite and tandem solar cells.
The expected outcomes include ....Luminescence-based imaging system for industrial tandem solar cells. This project aims to develop an Australian-made inspection system for next-generation solar cells. Besides allowing, for the first time, fast measurements of large-size tandem solar cells, the system will also enable the determination of key parameters that cannot be measured by current methods. This capability is expected to generate new knowledge in the areas of perovskite and tandem solar cells.
The expected outcomes include the development of new characterisation methods for advanced solar cells and improvement of their quality, as well as enhancing Australian capabilities in building sophisticated characterisation instruments. This should provide benefits such as cheaper solar energy and the development of local inspection industry.Read moreRead less
Nanophotonic tandem designs for high efficiency solar cells. This project will develop high-efficiency tandem solar cells that combine established silicon cell technology with novel low-cost thin-film solar cells. It will incorporate nanostructured layers between the cells that selectively trap different wavelengths of light, maximising light absorption in the top cell. This will make it possible to use a very thin top cell, reducing the requirements on electronic quality of the material. This p ....Nanophotonic tandem designs for high efficiency solar cells. This project will develop high-efficiency tandem solar cells that combine established silicon cell technology with novel low-cost thin-film solar cells. It will incorporate nanostructured layers between the cells that selectively trap different wavelengths of light, maximising light absorption in the top cell. This will make it possible to use a very thin top cell, reducing the requirements on electronic quality of the material. This project will also develop self-assembly techniques to enable the new nanostructures to be fabricated quickly and cheaply but with a high degree of control. Such cells will allow open the door to higher efficiencies, and lower costs, than is achievable with conventional solar cells.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210100453
Funder
Australian Research Council
Funding Amount
$442,408.00
Summary
Nervous tissue stimulation using Multi-Junction Silicon Photodiodes. Currently, in order to stimulate different areas in nervous tissue, brain-machine-interfaces (BMIs) usually rely on multi electrode arrays where each electrode is connected to a wire, that connects to other electronics, all of which has to be safely encapsulated, thus increasing the size of the devices and complicating the surgical procedure for implanted devices. This project aims to develop a silicon multi-junction photodiode ....Nervous tissue stimulation using Multi-Junction Silicon Photodiodes. Currently, in order to stimulate different areas in nervous tissue, brain-machine-interfaces (BMIs) usually rely on multi electrode arrays where each electrode is connected to a wire, that connects to other electronics, all of which has to be safely encapsulated, thus increasing the size of the devices and complicating the surgical procedure for implanted devices. This project aims to develop a silicon multi-junction photodiode that can provide a photovoltage high enough to efficiently excite nervous tissue. A BMI based on this approach could be much smaller and could be powered optically via thin fibres, thus in the long run enabling smaller and safer implants for restoring function in disabled people.Read moreRead less
A novel air-cooled fuel cell system. This project presents a novel cooling technology for fuel cell systems. This new design will not only save up to 50 per cent of the material cost but also leads to 20 per cent less fuel consumption compared to the existing fuel cells. This can save us billions of dollars per year with profound impact on our nation's carbon-emission-free alternative energy sources.
High performance durable perovskite solar cells for space applications . There has been a rapid growth in space exploration and experimentation fuelled by global support. Space hardware needs to be powered by a sustainable source of energy. The use of solar photovoltaics is the preferred choice. As we move into the era of 'commercial space', cost will become paramount necessitating the development of new cost effective photovoltaic technologies. Metal halide perovskite solar cells show the great ....High performance durable perovskite solar cells for space applications . There has been a rapid growth in space exploration and experimentation fuelled by global support. Space hardware needs to be powered by a sustainable source of energy. The use of solar photovoltaics is the preferred choice. As we move into the era of 'commercial space', cost will become paramount necessitating the development of new cost effective photovoltaic technologies. Metal halide perovskite solar cells show the greatest potential. They have a higher power to weight ratio and are significantly cheaper to be manufactured compared to incumbent space cells. This project aims to develop and demonstrate perovskite solar cells to achieve high areal power conversion efficiencies and long operating lifetimes withstanding space environment. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE210101129
Funder
Australian Research Council
Funding Amount
$425,948.00
Summary
Two-Dimensional Material Tandem Detectors for Polarimetry and Spectroscopy. The aim of this project is to leverage the fundamental advantages that two-dimensional (2D) materials could provide to vertically-stacked (tandem) photodetectors. The strong absorption, tunable bandgap and polarisation dependence that many 2D materials exhibit, provides a means by which to detect properties of light. This topic is significant because it could overcome current cost/performance issues of tandem detectors, .... Two-Dimensional Material Tandem Detectors for Polarimetry and Spectroscopy. The aim of this project is to leverage the fundamental advantages that two-dimensional (2D) materials could provide to vertically-stacked (tandem) photodetectors. The strong absorption, tunable bandgap and polarisation dependence that many 2D materials exhibit, provides a means by which to detect properties of light. This topic is significant because it could overcome current cost/performance issues of tandem detectors, enabling widespread usage. The expected project outcome is the development of a novel tandem 2D detector, which as a single detector/pixel, can extract the intensity, polarisation and wavelength region of incoming light. This would provide benefits for many future applications, including machine vision and aerial surveying.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
Stable perovskite-unlocking the full potential of low-cost solar cells. Despite impressive conversion efficiency, the perovskites' poor stability impedes their commercialization. This project aims to develop strategies for stable perovskite solar cells. This will be realized by a thorough understanding of the degradation origins with stimuli, and development of degradation mitigation strategies including materials and interfaces engineering, defect control and passivation, synergized by a system ....Stable perovskite-unlocking the full potential of low-cost solar cells. Despite impressive conversion efficiency, the perovskites' poor stability impedes their commercialization. This project aims to develop strategies for stable perovskite solar cells. This will be realized by a thorough understanding of the degradation origins with stimuli, and development of degradation mitigation strategies including materials and interfaces engineering, defect control and passivation, synergized by a systematic degradation evaluation, state-of-art multi-scale material and device characterizations and device modeling providing feedback for optimization. The project will bring new scientific findings, key technological step-change solutions, unlocking the full potential of perovskites for cheaper photovoltaic technologies.
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Dark current and noise mechanisms in nBn HgCdTe infrared detectors. Novel mercury cadmium telluride (HgCdTe) nBn (two n-type semiconductors sandwiching a barrier layer) infrared (IR) detectors are theoretically capable of operating at higher temperatures than conventional IR detectors. Their reduced cooling requirements lead to reductions in the size, weight and power of IR imaging systems without loss in IR detection performance. Unfortunately, HgCdTe nBn detectors are currently affected by non ....Dark current and noise mechanisms in nBn HgCdTe infrared detectors. Novel mercury cadmium telluride (HgCdTe) nBn (two n-type semiconductors sandwiching a barrier layer) infrared (IR) detectors are theoretically capable of operating at higher temperatures than conventional IR detectors. Their reduced cooling requirements lead to reductions in the size, weight and power of IR imaging systems without loss in IR detection performance. Unfortunately, HgCdTe nBn detectors are currently affected by non-ideal dark current and noise levels whose physical origins and nature are poorly understood. The proposed experimental and theoretical investigations and optimisations are anticipated to minimise such non-idealities and thus enable the demonstration of HgCdTe nBn IR detectors capable of revolutionising portable IR detection systems for security and rescue applications.Read moreRead less
Defect engineering in molecular beam epitaxy-grown mercury cadmium telluride. This project aims to develop high quality mercury cadmium telluride (HgCdTe) materials with lower defect density and lower background doping levels. This will enable future, high-performance, lower-cost infrared sensors with the unique features of higher yield, larger array size and higher operating temperature. The project will generate new science and technologies on defect engineering in the epitaxial growth of sem ....Defect engineering in molecular beam epitaxy-grown mercury cadmium telluride. This project aims to develop high quality mercury cadmium telluride (HgCdTe) materials with lower defect density and lower background doping levels. This will enable future, high-performance, lower-cost infrared sensors with the unique features of higher yield, larger array size and higher operating temperature. The project will generate new science and technologies on defect engineering in the epitaxial growth of semiconducting HgCdTe on cadmium zinc telluride (CdZnTe) substrates. This will contribute to the development of core Australian industry sectors such as defence, environmental monitoring, medical imaging, earth remote sensing, mining, and oil and gas.Read moreRead less