Towards phase, composition and homogeneity control in ternary nanowires. Semiconductor nanowires have enormous potential for large scale industry manufacturing as each individual nanowire represents one device. The aim of this project is the catalyst-free growth of ternary nanowires with control over structure, composition and homogeneity within the wire. Detailed electron microscopy analyses are essential to reconstruct a three-dimensional view of the nanowires and understand the growth mechani ....Towards phase, composition and homogeneity control in ternary nanowires. Semiconductor nanowires have enormous potential for large scale industry manufacturing as each individual nanowire represents one device. The aim of this project is the catalyst-free growth of ternary nanowires with control over structure, composition and homogeneity within the wire. Detailed electron microscopy analyses are essential to reconstruct a three-dimensional view of the nanowires and understand the growth mechanism at work. These structural characteristics determine the optical properties. It is expected that precise control over growth will allow the emission wavelength of the nanowires to be tuned and allow their use in optoelectronic device structures. Two innovative techniques are proposed using strain and patterned substrates for ternary nanowire growth.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE130101700
Funder
Australian Research Council
Funding Amount
$375,000.00
Summary
Development of terahertz metamaterials based on III-V compound semiconductors. This project will involve the theoretical design and experimental realisation of III-V semiconductors based terahertz metamaterials, which exhibit unique electromagnetic responses. Such development is expected to significantly benefit novel applications in defence, sensing and communications. The outcomes of this project will expand the capability of the existing systems in efficient real-time control and manipulation ....Development of terahertz metamaterials based on III-V compound semiconductors. This project will involve the theoretical design and experimental realisation of III-V semiconductors based terahertz metamaterials, which exhibit unique electromagnetic responses. Such development is expected to significantly benefit novel applications in defence, sensing and communications. The outcomes of this project will expand the capability of the existing systems in efficient real-time control and manipulation of terahertz radiations.Read moreRead less
Nanowire quantum well infrared photodetectors. This project aims to demonstrate semiconductor nanowire based quantum well infrared (IR) photodetectors for applications in chemical analysis, remote sensing, thermal imaging, environmental monitoring, space ranging and communications. By utilising one-dimensional nanowire detector architecture, the project expects that improved sensitivity, functionality and reduced cost can be achieved surpassing the performance of current IR technologies. This pr ....Nanowire quantum well infrared photodetectors. This project aims to demonstrate semiconductor nanowire based quantum well infrared (IR) photodetectors for applications in chemical analysis, remote sensing, thermal imaging, environmental monitoring, space ranging and communications. By utilising one-dimensional nanowire detector architecture, the project expects that improved sensitivity, functionality and reduced cost can be achieved surpassing the performance of current IR technologies. This project will pave the way for a new research and development platform for next generation large scale, low cost, high performance IR systems with commercialisation opportunities accessible to both high-end defence sectors and broader civilian industries.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE190100413
Funder
Australian Research Council
Funding Amount
$384,000.00
Summary
Hybrid nanowire-nanoantenna infrared photodetectors. This project aims to demonstrate room temperature hybrid nanowire-nanoantenna infrared photodetectors by integrating plasmonic nanoantennas on semiconductor nanowire arrays. It is expected that such novel device architectures will not only bring enhanced performance in responsivity, detectivity, and photoresponse bandwidth, but also additional functionalities such as selective wavelength and tunable polarisation, which may significantly outper ....Hybrid nanowire-nanoantenna infrared photodetectors. This project aims to demonstrate room temperature hybrid nanowire-nanoantenna infrared photodetectors by integrating plasmonic nanoantennas on semiconductor nanowire arrays. It is expected that such novel device architectures will not only bring enhanced performance in responsivity, detectivity, and photoresponse bandwidth, but also additional functionalities such as selective wavelength and tunable polarisation, which may significantly outperform current infrared technology. The outcomes will provide a new device platform for next-generation, large-scale, reduced-cost, high-performance imaging systems in self-driving navigation, object identification, spectroscopy, and other high-end defence and civilian applications.Read moreRead less
Efficient, durable and green chalcopyrite solar powered building steel. This project aims to develop a long-life, stable, high-performance, and green chalcopyrite solar powered building steel, which is expected to offer a shapable truly green building integrated photovoltaic (BIPV) product for building deployment. This will be realized by synergising multidiscipline expertise, integrating established technologies of steel surface treatment, steel and solar cell integration and shaping, high-effi ....Efficient, durable and green chalcopyrite solar powered building steel. This project aims to develop a long-life, stable, high-performance, and green chalcopyrite solar powered building steel, which is expected to offer a shapable truly green building integrated photovoltaic (BIPV) product for building deployment. This will be realized by synergising multidiscipline expertise, integrating established technologies of steel surface treatment, steel and solar cell integration and shaping, high-efficiency chalcopyrite, identified strategies for tackling its durability and toxicity, and advanced macro-to-micro characterizations. The project completion will accelerate the transition to the zero-emission building, establish Australia's excellence in green steel for BIPV, and access a share in the soaring BIPV market.Read moreRead less
Towards High-quality Hetero-epitaxial III-V Semiconductor Nanowires. The use of semiconductor nanowires has uncovered many scientific curiosities and extended their potential applications in many fields. In general, nanowire growth is governed by metallic catalysts, involving nanowire nucleation and growth. So far, the role of catalysts during nanowire nucleation is not clear and needs urgent attention. This project aims to investigate the behaviour of catalysts before and during the nucleation ....Towards High-quality Hetero-epitaxial III-V Semiconductor Nanowires. The use of semiconductor nanowires has uncovered many scientific curiosities and extended their potential applications in many fields. In general, nanowire growth is governed by metallic catalysts, involving nanowire nucleation and growth. So far, the role of catalysts during nanowire nucleation is not clear and needs urgent attention. This project aims to investigate the behaviour of catalysts before and during the nucleation of III-V nanowires by means of nano-characterisation to ultimately integrate high-quality III-V nanowires on silicon substrates. The new knowledge developed from this project is expected to provide critical insights for developing high-quality III-V nanowires integrated on silicon substrates.Read moreRead less
Nanowire infrared avalanche photodetectors towards single photon detection. This project aims to demonstrate semiconductor nanowire based infrared avalanche photodetectors (APDs) with ultra-high sensitivity towards single photon detection. By employing the advantages of their unique one-dimensional nanoscale geometry, the nanowire APDs can be engineered to different device architectures to achieve performance superior to their conventional counterparts. It is expected that this project will mak ....Nanowire infrared avalanche photodetectors towards single photon detection. This project aims to demonstrate semiconductor nanowire based infrared avalanche photodetectors (APDs) with ultra-high sensitivity towards single photon detection. By employing the advantages of their unique one-dimensional nanoscale geometry, the nanowire APDs can be engineered to different device architectures to achieve performance superior to their conventional counterparts. It is expected that this project will make significant contributions to the development of next generation high performance, fast speed, small size and low cost infrared photodetector technology platform enabling numerous emerging fields in modern transportation, communication, quantum computation and information processing to revolutionise our life and society.Read moreRead less
High-brightness wavelength tuneable lasers for quantum science. This project aims to establish the capability to manufacture application-specific semiconductor lasers. The project will use existing facilities in Australia to enhance our world-leading quantum science research, and establish a viable export-dominated high-tech manufacturing business. Semiconductor lasers are a critical enabling technology for many scientific applications, particularly for quantum science including quantum computin ....High-brightness wavelength tuneable lasers for quantum science. This project aims to establish the capability to manufacture application-specific semiconductor lasers. The project will use existing facilities in Australia to enhance our world-leading quantum science research, and establish a viable export-dominated high-tech manufacturing business. Semiconductor lasers are a critical enabling technology for many scientific applications, particularly for quantum science including quantum computing and quantum sensing. This project is expected to enable the establishment of a high-tech manufacturing capability to support Australia's leading role in quantum science, and expand our scientific instrumentation exports to new and rapidly developing applications such as magnetic sensing and imaging at nanoscale, quantum communication and computation.Read moreRead less
Nitride-based Compound Semiconductors for Solar Water Splitting. Global warming warrants urgent investment in clean and sustainable energy generation. This project aims to investigate the use of nitride semiconductors, a commonly used material for LEDs, and solar energy to generate hydrogen by splitting water molecules. These semiconductors have excellent light absorption efficiency and can be designed to better match the solar spectrum. The project will explore the underlying mechanism of light ....Nitride-based Compound Semiconductors for Solar Water Splitting. Global warming warrants urgent investment in clean and sustainable energy generation. This project aims to investigate the use of nitride semiconductors, a commonly used material for LEDs, and solar energy to generate hydrogen by splitting water molecules. These semiconductors have excellent light absorption efficiency and can be designed to better match the solar spectrum. The project will explore the underlying mechanism of light interaction with the semiconductor through band bending and surface engineering, and determine how this interaction affects the dissociation of water molecules. The concepts demonstrated in the project are expected to pave the way for further development of this technology for future applications. Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE110100127
Funder
Australian Research Council
Funding Amount
$250,000.00
Summary
Hall effect system for detailed electrical characterisation in semiconductors. Semiconductor characterisation is crucial for research and development in optimum growth and fabrication procedures. This Hall effect measurement system is an essential carrier characterisation technique for semiconductors with potential applications in microelectronics, optoelectronics and photovoltaics.