Understanding the role of catalysts in the epitaxial growth of multinary III-V semiconductor nanowires and nanowire heterostructures. This project will address a bottle-neck problem in the nanowire community. The outcomes of this project will provide new knowledge in nanoscience and guidelines for the development of nanowire-based nanodevices and nanosystems. This is strategically important to place Australia at the forefront of developments on nanoscience and nanotechnology.
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
Swift heavy ion induced nano-porous antimony-based semiconductors. This project aims to study the fabrication and application of nano-porous antimony based semiconductors prepared by high-energy ion irradiation. Using a unique combination of synchrotron and laboratory- based analytical techniques as well as computer simulations, the project expects to identify the physical mechanisms for porous structure formation and exploit the materials for application in thermoelectric and thermo-photovoltai ....Swift heavy ion induced nano-porous antimony-based semiconductors. This project aims to study the fabrication and application of nano-porous antimony based semiconductors prepared by high-energy ion irradiation. Using a unique combination of synchrotron and laboratory- based analytical techniques as well as computer simulations, the project expects to identify the physical mechanisms for porous structure formation and exploit the materials for application in thermoelectric and thermo-photovoltaic devices. Expected outcomes of the project include fabrication processes compatible with current device fabrication methodologies that should enable rapid integration of the materials into advanced device applications. Significant benefits should result from novel applications of the technologies such as energy harvesting and sensor devices.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.
III-V semiconductor nanowire solar cells without p-n junctions. This project proposes a new class of nanowire solar cells that do not rely on conventional electrical (p-n) junction for photo-generated charge carrier separation. Instead the band structure of the semiconductors is engineered to form a misalignment which leads to the spatial separation of carriers. This approach is expected to fundamentally change the design of solar cells, eliminating the technologically challenging need for formi ....III-V semiconductor nanowire solar cells without p-n junctions. This project proposes a new class of nanowire solar cells that do not rely on conventional electrical (p-n) junction for photo-generated charge carrier separation. Instead the band structure of the semiconductors is engineered to form a misalignment which leads to the spatial separation of carriers. This approach is expected to fundamentally change the design of solar cells, eliminating the technologically challenging need for forming good electrical junctions, while retaining all advantages inherent to III-V semiconductor nanowire solar cells. More importantly, the device concept proposed is expected to have implications for a wider class of solar cells based on exotic/novel materials or nanostructures where achieving both n- and p-doping may be challenging.Read moreRead less
Nitride nanowires for advanced optoelectronic and energy applications. Group III-nitride semiconductor devices, which are currently in widespread use in white, blue and green LEDs, and Bluray lasers, have a multi-billion dollar market. This project aims to address and improve the issues and challenges which still limit the true potential of these materials, by tailoring them at the nanoscale. Understanding the fundamental growth mechanisms of these nanowires and their structural, optical and ele ....Nitride nanowires for advanced optoelectronic and energy applications. Group III-nitride semiconductor devices, which are currently in widespread use in white, blue and green LEDs, and Bluray lasers, have a multi-billion dollar market. This project aims to address and improve the issues and challenges which still limit the true potential of these materials, by tailoring them at the nanoscale. Understanding the fundamental growth mechanisms of these nanowires and their structural, optical and electrical properties will allow precise and controllable synthesis of the nanowires to specific requirements. This will further allow demonstration of high efficiency UV LEDs, compact green/yellow lasers, nanowire solar cells and photoelectrodes for hydrogen generation from splitting water.Read moreRead less
van der Waals epitaxy for advanced and flexible optoelectronics. This project aims to investigate the growth of compound semiconductors directly on two-dimensional material templates, via the so-called van der Waals epitaxy. Two-dimensional materials combined with compound semiconductors as optoelectronic materials can have many uses. This project expects to design flexible solar cells, which could be integrated with fabrics or building products, and lasers that need small drive currents. It wil ....van der Waals epitaxy for advanced and flexible optoelectronics. This project aims to investigate the growth of compound semiconductors directly on two-dimensional material templates, via the so-called van der Waals epitaxy. Two-dimensional materials combined with compound semiconductors as optoelectronic materials can have many uses. This project expects to design flexible solar cells, which could be integrated with fabrics or building products, and lasers that need small drive currents. It will use the Anderson localisation effect, a photon management concept, to control the interaction between photons and material and improve device efficiencies.Read moreRead less
Selective area nano-epitaxy. A new major program will be initiated to investigate the epitaxial growth of certain semiconductor nanowires on patterned substrates, without the use of a catalyst. It will result in the ability to produce nanowires of high quality and uniformity. This will lead the way for new and advanced concept nanowire-based devices for future applications.
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
Ultrathin III-V Solar Cells via Crack-Assisted Layer Exfoliation. III-V semiconductors are excellent photovoltaic materials with highest demonstrated solar-to-electricity conversion efficiencies, but find limited usage in terrestrial applications due to high material and fabrication costs. This project aims to improve the cost-effectiveness of III-V solar cells by developing ultrathin III-V semiconductors via crack-assisted layer transfer approach and epitaxy-free fabrication via heterojunction ....Ultrathin III-V Solar Cells via Crack-Assisted Layer Exfoliation. III-V semiconductors are excellent photovoltaic materials with highest demonstrated solar-to-electricity conversion efficiencies, but find limited usage in terrestrial applications due to high material and fabrication costs. This project aims to improve the cost-effectiveness of III-V solar cells by developing ultrathin III-V semiconductors via crack-assisted layer transfer approach and epitaxy-free fabrication via heterojunction architectures, paving the way for cost-effective, high-efficiency, flexible solar cells. The expected outcomes include a disruptive technology for integrated photovoltaics, novel contact and passivation materials, as well as new knowledge generated in materials science and optoelectronics disciplines.Read moreRead less