Discovery Early Career Researcher Award - Grant ID: DE220101103
Funder
Australian Research Council
Funding Amount
$450,000.00
Summary
Giant piezo responses in rare-earth doped eco-friendly relaxor perovskites. This project aims to design and fabricate superior eco-friendly substitutions for lead-based perovskites widely used in piezoelectric devices, to address the long-standing toxic concern of lead for human beings and the environment in the community. It is expected to surmount the fundamental limit of current approaches to reach giant room-temperature piezoelectric responses in lead-free perovskites through using a pioneer ....Giant piezo responses in rare-earth doped eco-friendly relaxor perovskites. This project aims to design and fabricate superior eco-friendly substitutions for lead-based perovskites widely used in piezoelectric devices, to address the long-standing toxic concern of lead for human beings and the environment in the community. It is expected to surmount the fundamental limit of current approaches to reach giant room-temperature piezoelectric responses in lead-free perovskites through using a pioneering route named rare-earth doped relaxor/morphotropic phase boundary crossover. Success of this project will not only meet the Australia’s ecological sustainability goals, but also provide commercial opportunities for Australia in the large market of piezoelectric devices (> 25 Billion USD annually).Read moreRead less
New dielectric materials: Improving storage density of high temperature multilayer ceramic capacitors to sustainably meet future energy demands. Electrical energy generation from renewable sources, such as solar, wind and geothermal, provide enormous potential for meeting future energy demands. However, the ability to store and control this energy for miniaturisation and modularisation in applications requiring a wide temperature usage range is a limiting factor that needs to be addressed. This ....New dielectric materials: Improving storage density of high temperature multilayer ceramic capacitors to sustainably meet future energy demands. Electrical energy generation from renewable sources, such as solar, wind and geothermal, provide enormous potential for meeting future energy demands. However, the ability to store and control this energy for miniaturisation and modularisation in applications requiring a wide temperature usage range is a limiting factor that needs to be addressed. This project aims to develop new bismuth-based lead-free dielectric materials for improving the storage density of high temperature multilayer ceramic capacitors for sustainable applications in the energy and vehicle industries, where high temperature stability and high volumetric efficiency are crucial.Read moreRead less
Development of advanced metal oxide materials for next generation nonvolatile memory devices. The purpose of the project is to explore a new memory technology, resistive random-access memory, that can be made smaller than those of today, as well as preferably being faster, power saving and nonvolatile. The project is expected to bring resistive random-access memory materials a step closer to nonvolatile memory devices application.
Modification of optical properties of photocatalytic titania. The aim of the project is to capitalise on and optimise the recently discovered successful modification of the optical properties of titanium oxide (TiO2), such that efficient solar splitting of water is possible. TiO2 photocatalysts of adequate efficiency will be implemented as photoanodes in photoelectrochemical cells capable of large-scale production of hydrogen.
Oxide-semiconductor epitaxy: towards next generation nanoelectronics. This project aims to integrate high quality functional oxide heterostructures with semiconductor platforms and address the fundamental obstacles in oxides for highly efficient and high-speed transistor applications by engineering their electronic band structures. The project aims to establish a bridge between the diverse electronic properties of oxides and the established semiconductor platform, and generate new devices and fu ....Oxide-semiconductor epitaxy: towards next generation nanoelectronics. This project aims to integrate high quality functional oxide heterostructures with semiconductor platforms and address the fundamental obstacles in oxides for highly efficient and high-speed transistor applications by engineering their electronic band structures. The project aims to establish a bridge between the diverse electronic properties of oxides and the established semiconductor platform, and generate new devices and functionalities. Expected outcomes include epitaxial functional oxides on Gallium arsenide with ultrahigh, room-temperature sheet electron mobility and a comprehensive understanding of its microscopic origin. This will fundamentally change the route toward novel transistors based on high speed and low energy oxide electronics.Read moreRead less
Unlocking the ion selectivity of lithium superionic conductor membranes. This project aims to address a longstanding challenge in designing advanced membranes to enable sustainable lithium refining by unlocking the ion selectivity of lithium superionic conductors. This project expects to generate new knowledge in the areas of membrane science and emerging nanoionics by using interdisciplinary approaches. Expected outcomes of this project include a novel class of lithium separation membranes and ....Unlocking the ion selectivity of lithium superionic conductor membranes. This project aims to address a longstanding challenge in designing advanced membranes to enable sustainable lithium refining by unlocking the ion selectivity of lithium superionic conductors. This project expects to generate new knowledge in the areas of membrane science and emerging nanoionics by using interdisciplinary approaches. Expected outcomes of this project include a novel class of lithium separation membranes and their fabrication techniques. This should provide significant benefits in improving lithium extraction and recycling efficiency, reducing their environmental impact and building the research capacity in advanced membrane manufacturing and critical mineral refining in Australia. Read moreRead less
Exploration of lead free ferroelectric crystals for transducer applications. This project aims to investigate lead free crystals, which are expected to possess high piezoelectric properties for medical imaging and underwater acoustics, as an alternative to toxic lead-based ferroelectrics which have been dominantly used in ultrasound transducers. The project will have significant impact on development of new lead-free ferroelectric crystals with desirable properties. This will benefit Australian ....Exploration of lead free ferroelectric crystals for transducer applications. This project aims to investigate lead free crystals, which are expected to possess high piezoelectric properties for medical imaging and underwater acoustics, as an alternative to toxic lead-based ferroelectrics which have been dominantly used in ultrasound transducers. The project will have significant impact on development of new lead-free ferroelectric crystals with desirable properties. This will benefit Australian industry by providing knowledge and technology of crystal growth, enabling advanced ultrasound transducers for medical imaging and underwater acoustic applications.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE150100750
Funder
Australian Research Council
Funding Amount
$315,000.00
Summary
On the origin of high strain in lead-free piezoelectric materials. Legislation against the use of lead initiated a search for lead-free piezoelectric ceramics. This project aims to derive guidelines for the development and implementation of this new class of materials. This project will utilise an analysis technique that allows elucidation of the origin of the high strain in piezoelectric materials. A separate analysis of the three known strain mechanisms in materials with coexisting phases will ....On the origin of high strain in lead-free piezoelectric materials. Legislation against the use of lead initiated a search for lead-free piezoelectric ceramics. This project aims to derive guidelines for the development and implementation of this new class of materials. This project will utilise an analysis technique that allows elucidation of the origin of the high strain in piezoelectric materials. A separate analysis of the three known strain mechanisms in materials with coexisting phases will innovatively correlate theory and macroscopic observation with processes on the atomic scale. The quantification of the contribution of each mechanism will lead to new insights into the enhancement of sustainable functional materials.Read moreRead less
Enhanced electro-active properties in polycrystalline ceramics: a multi-length-scale approach. Electro-active materials are used in a wide range of devices including ultrasound imaging equipment and nano-positioning systems. This project will determine the most fundamental mechanisms at work in these materials allowing for the optimisation of high-performance and environmentally friendly electro-active devices for future industries.
Interface/Boundary Engineering Towards Better Solid-State Lithium Batteries. This project aims to develop high-performance solid-state lithium batteries by engineering the design of grain boundaries within the oxide electrolyte and interfaces between the electrolyte and both anode and cathode. This project expects to propose a novel cation exsolution strategy for comprehensively engineering the interfaces and boundaries. This project should provide significant benefits on energy safety and susta ....Interface/Boundary Engineering Towards Better Solid-State Lithium Batteries. This project aims to develop high-performance solid-state lithium batteries by engineering the design of grain boundaries within the oxide electrolyte and interfaces between the electrolyte and both anode and cathode. This project expects to propose a novel cation exsolution strategy for comprehensively engineering the interfaces and boundaries. This project should provide significant benefits on energy safety and sustainable development of Australia. The successful completion of this project can lead to the development of battery technologies that may lift Australia to a better position in the international market and may also help boost the prosperity of Australia’s world-leading lithium mining industry.Read moreRead less