Ultra-high mobility Dirac semimetal nanostructures for solid state devices. This project aims to develop novel Dirac semimetal nanostructures and determine their structural and chemical characteristics to ultimately assemble high-performance devices. The growth of band-engineered nanostructures and understanding their evolution, fine structure and unique properties are key steps for developing high-performance nanostructure-based devices. The new knowledge and skills developed in this project wi ....Ultra-high mobility Dirac semimetal nanostructures for solid state devices. This project aims to develop novel Dirac semimetal nanostructures and determine their structural and chemical characteristics to ultimately assemble high-performance devices. The growth of band-engineered nanostructures and understanding their evolution, fine structure and unique properties are key steps for developing high-performance nanostructure-based devices. The new knowledge and skills developed in this project will greatly enhance the knowledge base of nanoscience and nanotechnology, and will have a significant impact on practical applications of nanostructure-based devices. This project will underpin the development of next-generation electronic nanomaterials that will enhance the long-term viability of Australia’s high-technology industries.Read moreRead less
Cost-effective metal selenide materials for solid-state devices. Thermoelectric materials, directly converting thermal energy into electrical energy, offer a green and sustainable solution for the global energy dilemma. This project aims to develop cost-effective metal selenide materials for high-efficiency solid-state devices using a novel industry-level approach, coupled with nanostructure and band engineering strategies. The key breakthrough is to design high-performance metal selenide thermo ....Cost-effective metal selenide materials for solid-state devices. Thermoelectric materials, directly converting thermal energy into electrical energy, offer a green and sustainable solution for the global energy dilemma. This project aims to develop cost-effective metal selenide materials for high-efficiency solid-state devices using a novel industry-level approach, coupled with nanostructure and band engineering strategies. The key breakthrough is to design high-performance metal selenide thermoelectric materials with engineered chemistry and unique structures for new generation thermoelectrics. The expected outcomes will lead to an innovative technology for harvesting electricity from waste heat or sunlight, which will place Australia at the forefront of energy and manufacturing technologies.Read moreRead less
A Novel Multilevel Modelling Framework to Design Diamond Nanothread Bundles. This project aims to develop a novel, computationally-based framework to optimally and efficiently design new fibre materials based on the diamond nanothreads synthesized by the PI in 2014. The CIs (and others) have demonstrated the tremendous promise these materials hold to replace common carbon fibres. The proposed framework will combine advanced computer modelling, statistical learning, genetic algorithm-based optima ....A Novel Multilevel Modelling Framework to Design Diamond Nanothread Bundles. This project aims to develop a novel, computationally-based framework to optimally and efficiently design new fibre materials based on the diamond nanothreads synthesized by the PI in 2014. The CIs (and others) have demonstrated the tremendous promise these materials hold to replace common carbon fibres. The proposed framework will combine advanced computer modelling, statistical learning, genetic algorithm-based optimal design and experimental validations. It will accelerate the design of these new carbon-based fibres as game-changing materials in a wide range of areas. Ultimately this project has the potential to deliver significant economic benefits and will place Australia at the forefront of the industrial revolution of the future.Read moreRead less
Electrostatic catalysis from single-molecule events to macroscopic systems. Electrostatics has important applications in day-to-day technologies, from recycling plastics to photocopying, but the exploration of how static charges affect chemical bonds and bonding is still in its infancy. This project aims to demonstrate the experimental links between the magnitude and polarity of an external electric field and chemical rates, expanding our understanding of chemical reactivity and transforming our ....Electrostatic catalysis from single-molecule events to macroscopic systems. Electrostatics has important applications in day-to-day technologies, from recycling plastics to photocopying, but the exploration of how static charges affect chemical bonds and bonding is still in its infancy. This project aims to demonstrate the experimental links between the magnitude and polarity of an external electric field and chemical rates, expanding our understanding of chemical reactivity and transforming our view of catalysis. By investigating the role of static electricity over systems selected from different sub-disciplines of chemistry, the project will derive the ground and selection rules for reactivity and selectivity by electrostatics. The project is expected to show that for chemical reactions of practical and conceptual value a specific catalyst can be replaced by a generic electric field stimulus, an invisible catalyst, enabling cleaner and cheaper opportunities that current technologies cannot fulfil.Read moreRead less
Atomic scale ion microscopy via laser cooling and correlated imaging. This project will develop next-generation focused ion beam microscopy and nanofabrication using a novel cold ion source based on photoionisation of a laser-cooled atom beam. The low temperature and complex internal state structure of the constituent atoms combine to allow generation of ions with unprecedented brightness and resolution. We will use three unique and innovative ideas: field ionisation of atoms in so-called 'excep ....Atomic scale ion microscopy via laser cooling and correlated imaging. This project will develop next-generation focused ion beam microscopy and nanofabrication using a novel cold ion source based on photoionisation of a laser-cooled atom beam. The low temperature and complex internal state structure of the constituent atoms combine to allow generation of ions with unprecedented brightness and resolution. We will use three unique and innovative ideas: field ionisation of atoms in so-called 'exceptional' states to reduce chromatic aberration; electron-ion correlations to enhance control of the ions at the nanoscale; and atom-atom interactions to isolate and manipulate individual ions. The new technology will enable advances in semiconductor nanofabrication and material characterisation.Read moreRead less
Super-formable magnesium and its alloys at room temperature. This project aims to reveal the origin of a new phenomenon that we recently discovered: intrinsically brittle magnesium becomes super-formable at room temperature when its grain size is reduced to about one micron. It will use state-of-the-art atomic-scale characterization and computation to determine the mechanisms underlying the phenomenon, and to explore some as yet uncharted dilute alloy composition territories for unprecedented fo ....Super-formable magnesium and its alloys at room temperature. This project aims to reveal the origin of a new phenomenon that we recently discovered: intrinsically brittle magnesium becomes super-formable at room temperature when its grain size is reduced to about one micron. It will use state-of-the-art atomic-scale characterization and computation to determine the mechanisms underlying the phenomenon, and to explore some as yet uncharted dilute alloy composition territories for unprecedented formability. Expected outcomes are likely to form the scientific basis and a new pathway for designing and developing a new generation of wrought magnesium alloys.Read moreRead less
Imaging Symmetry – A New Mechanism for Revealing the Structure of Matter. This project aims to develop a revolutionary method for imaging atomic structures. In this method, the image contrast derives from the symmetry of the structure, measured at the picometre scale, using tiny electron probes. This new conceptual approach is expected to overcome some of the key limitations of existing electron microscopy methods by providing increased sensitivity and reduced radiation damage, thereby enabling ....Imaging Symmetry – A New Mechanism for Revealing the Structure of Matter. This project aims to develop a revolutionary method for imaging atomic structures. In this method, the image contrast derives from the symmetry of the structure, measured at the picometre scale, using tiny electron probes. This new conceptual approach is expected to overcome some of the key limitations of existing electron microscopy methods by providing increased sensitivity and reduced radiation damage, thereby enabling complex structures in technologically important materials to be determined. This should provide new ways to understand the properties of these materials advanced materials and engineer them for applications in the energy, transport, health, communications and other sectors of society. Read moreRead less
Biogenesis and functions of bacterial membrane vesicles. This project aims to investigate the mechanisms that regulate the production of bacterial membrane vesicles and how this determines their bacterial cargo and subsequent biological functions. Bacterial membrane vesicles are naturally produced nanoparticles released by all bacteria as part of their normal growth. These vesicles contain a range of bacterial cargo and function to promote bacterial survival and growth. This project will advance ....Biogenesis and functions of bacterial membrane vesicles. This project aims to investigate the mechanisms that regulate the production of bacterial membrane vesicles and how this determines their bacterial cargo and subsequent biological functions. Bacterial membrane vesicles are naturally produced nanoparticles released by all bacteria as part of their normal growth. These vesicles contain a range of bacterial cargo and function to promote bacterial survival and growth. This project will advance our knowledge regarding the regulation of bacterial membrane vesicle biogenesis, their composition and biological functions. Collectively, these findings will facilitate the development and refinement of membrane vesicle-based biotechnologies with broad applications.Read moreRead less
A Self-Repairing Entropy-Stabilized Oxide as a Protective Coating. All biological organisms, from plants to living creatures, can heal minor wounds and damages. Based on the recent breakthrough by the CI’s team, this project aims to design and develop a new oxide containing multiple elements in a form of (AlCoCrCu0.5FeNi)3O4 that can resist damages through a self-repairing mechanism. Fabricated by radio frequency (RF) magnetron sputtering, this extraordinary self-repairing phenomenon makes this ....A Self-Repairing Entropy-Stabilized Oxide as a Protective Coating. All biological organisms, from plants to living creatures, can heal minor wounds and damages. Based on the recent breakthrough by the CI’s team, this project aims to design and develop a new oxide containing multiple elements in a form of (AlCoCrCu0.5FeNi)3O4 that can resist damages through a self-repairing mechanism. Fabricated by radio frequency (RF) magnetron sputtering, this extraordinary self-repairing phenomenon makes this new material highly desirable as a coating to protect structures and machinery working in hash conditions. Therefore, it has broad applications in space technologies, nuclear power facilities and aerospace industry, as well as in shipbuilding industry. Read moreRead less
Aberration-corrected atom probe tomography for materials engineering. Observing atomic-scale structure (AS) is key to unlocking advanced materials science and engineering (MSE).
Aims: We aim to (1) develop software that will enable the accurate observation of atoms in a material, and (2) apply this new software to additive manufactured alloys and quantum computing materials.
Significance: We expect to complete aberration-corrected atom probe tomography capability for the first time international ....Aberration-corrected atom probe tomography for materials engineering. Observing atomic-scale structure (AS) is key to unlocking advanced materials science and engineering (MSE).
Aims: We aim to (1) develop software that will enable the accurate observation of atoms in a material, and (2) apply this new software to additive manufactured alloys and quantum computing materials.
Significance: We expect to complete aberration-corrected atom probe tomography capability for the first time internationally. We intend to gain better insights into some longstanding questions in MSE that can only be answered by accurately observing AS.
Benefits: By making the outcomes commercially available, we aspire to improve consistency in the quality of products, and increased yield, that result from manufacturing processes.Read moreRead less