Faster interfacial electron transfer: the effect of molecule shape and size. This project aims to explore the effect of shape and size of pi-conjugated molecules on interfacial electron transfer reactions, which are fundamentally important in all applications of photo-electrochemical conversion and storage of energy. By making two series of pi-conjugated molecules and determining electron transfer rates using a combination of transient spectroscopies and computational chemistry, the project expe ....Faster interfacial electron transfer: the effect of molecule shape and size. This project aims to explore the effect of shape and size of pi-conjugated molecules on interfacial electron transfer reactions, which are fundamentally important in all applications of photo-electrochemical conversion and storage of energy. By making two series of pi-conjugated molecules and determining electron transfer rates using a combination of transient spectroscopies and computational chemistry, the project expects to generate new design principles for molecules with the potential to significantly improve the efficiencies of solar energy conversion and photo-catalytic processes. The new materials and findings will be exploited in a novel redox-mediated water splitting device as a practical outcome with potential end user benefits.Read moreRead less
Nitride materials: In the “bond ionicity Goldilocks zone” for solar energy. Progress towards commercial devices for solar-driven hydrogen generation as well as in-situ electricity generation for vehicles is currently hampered by a lack of earth-abundant, stable, non-toxic semiconductor materials that can be fabricated by scalable methods. This project aims to develop the first scalable solution synthesis methods for a new class of earth-abundant Zn-based nitride semiconductor nanocrystals that h ....Nitride materials: In the “bond ionicity Goldilocks zone” for solar energy. Progress towards commercial devices for solar-driven hydrogen generation as well as in-situ electricity generation for vehicles is currently hampered by a lack of earth-abundant, stable, non-toxic semiconductor materials that can be fabricated by scalable methods. This project aims to develop the first scalable solution synthesis methods for a new class of earth-abundant Zn-based nitride semiconductor nanocrystals that have favourable bond ionicity and establish their optoelectronic properties for renewable energy devices for the first time. Flexible solution processing methods will be exploited to tune surface composition, remove defects and create devices to achieve optimised performance in these challenging new nitride material systems.Read moreRead less
Anodisation methods and materials for solar water splitting. This project aims to convert and chemically store solar energy as hydrogen. Photoactive materials could harness solar energy. With fabrication methods, these thin films often suffer from poor charge transport and stability, hindering their wider application. Fabrication by anodization could potentially overcome these problems. This project will develop thin film fabrication methods based on anodization that synthesise robust, nanostruc ....Anodisation methods and materials for solar water splitting. This project aims to convert and chemically store solar energy as hydrogen. Photoactive materials could harness solar energy. With fabrication methods, these thin films often suffer from poor charge transport and stability, hindering their wider application. Fabrication by anodization could potentially overcome these problems. This project will develop thin film fabrication methods based on anodization that synthesise robust, nanostructured films with efficient compositions and structures. This will lead to photoelectrodes for efficient solar hydrogen generation, crucial for a sustainable energy future. It will also develop general design principles for photoelectrodes for devices.Read moreRead less
Overcoming the inherent instability of photocatalyst to produce solar fuels. This project aims to develop innovative materials engineering methods to suppress the intrinsic instability of novel photoactive semiconductor materials that are promising candidates for harnessing solar energy from water or industrial waste water. A number of potentially impactful photoactive materials are currently suffering from chemical- and photo-dissolution, thus hindering their practical applications. Attaining f ....Overcoming the inherent instability of photocatalyst to produce solar fuels. This project aims to develop innovative materials engineering methods to suppress the intrinsic instability of novel photoactive semiconductor materials that are promising candidates for harnessing solar energy from water or industrial waste water. A number of potentially impactful photoactive materials are currently suffering from chemical- and photo-dissolution, thus hindering their practical applications. Attaining fundamental knowledge on charge interaction at electrolyte-semiconductor interfaces will be crucial in developing the next generation of highly efficient photochemical systems in solar fuels applications.Read moreRead less
Tuning the electrolytes for high efficiency solar splitting of water. This project will develop a new technology that uses ionic liquids and sunlight to split water into hydrogen and oxygen to be used as a clean fuel. Australia has abundant sunlight, is very close to the growing energy markets of the Asia-Pacific region, and is ideally placed to benefit from this new technology.
Discovery Early Career Researcher Award - Grant ID: DE210101565
Funder
Australian Research Council
Funding Amount
$423,193.00
Summary
An Emerging Ionic Chalcogenide Perovskites for Solar Energy Conversion. This project aims to develop a library of earth-abundant chalcogenide perovskite nanocrystals (CPNCs) for efficient solar energy conversion applications. The key concept is to design non-toxic and stable CPNCs using a facile solution process for solar-to-electricity and fuel generation. The intended outcomes include a fundamental understanding of the relationships between the synthesis, structure, photophysics, and electroch ....An Emerging Ionic Chalcogenide Perovskites for Solar Energy Conversion. This project aims to develop a library of earth-abundant chalcogenide perovskite nanocrystals (CPNCs) for efficient solar energy conversion applications. The key concept is to design non-toxic and stable CPNCs using a facile solution process for solar-to-electricity and fuel generation. The intended outcomes include a fundamental understanding of the relationships between the synthesis, structure, photophysics, and electrochemistry by advanced modeling and multiscale characterizations and ultimately the solar-to-electricity and fuel generation performances of new material systems. This project will build a national research capacity in an emerging field and put Australia at the forefront of practical solar energy conversion technologies.Read moreRead less
Defect control for high-performance green kesterites energy materials. This project will tackle the fundamental challenge of defect control of the quaternary compound kesterite, revolutionizing the way we can understand the hidden defect-evolution process and design accordingly effective defect-control approaches. This will be realized by a systematic approach integrating multiscale materials characterization, process and materials modeling, and linking microscopic local chemical potential and m ....Defect control for high-performance green kesterites energy materials. This project will tackle the fundamental challenge of defect control of the quaternary compound kesterite, revolutionizing the way we can understand the hidden defect-evolution process and design accordingly effective defect-control approaches. This will be realized by a systematic approach integrating multiscale materials characterization, process and materials modeling, and linking microscopic local chemical potential and macroscopic processing conditions, and associated compound properties and device performance to control defects evolution. Successfully achieved, this project will realize full potential of kesterite in photovoltaic and photoelectrochemical applications, and leading to new discoveries in other compound energy materials.Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160101100
Funder
Australian Research Council
Funding Amount
$310,000.00
Summary
Nanostructured Cu2ZnSnS4 for solar-driven electricity and hydrogen. This project aims to develop cost-effective Cu2ZnSnS4 nanocrystals for two solar devices for electricity and hydrogen production. The copper-zinc-tin-sulphide (Cu2ZnSnS4) nanoparticle for solar cells has been less than two per cent efficient for years and photoelectrochemical devices have been recently recognised but less explored. The combined innovative modification of its nanocrystals, and grain growth approach for enhancing ....Nanostructured Cu2ZnSnS4 for solar-driven electricity and hydrogen. This project aims to develop cost-effective Cu2ZnSnS4 nanocrystals for two solar devices for electricity and hydrogen production. The copper-zinc-tin-sulphide (Cu2ZnSnS4) nanoparticle for solar cells has been less than two per cent efficient for years and photoelectrochemical devices have been recently recognised but less explored. The combined innovative modification of its nanocrystals, and grain growth approach for enhancing light absorption and photogenerated carrier collection efficiency should elucidate underlying mechanism of and provide solutions to the problem which has baffled researchers in above areas for several years. The intended resulting simple, cost-effective solar-driven electricity and hydrogen devices should make significant contributions to goals of commercially viable storage of solar energy and solutions to global energy and environment issues.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE160100107
Funder
Australian Research Council
Funding Amount
$415,000.00
Summary
Time-resolved terahertz and optical spectroscopy facility. Time-resolved terahertz and optical spectroscopy facility:
This project aims to use time-resolved terahertz and optical spectroscopy as techniques to probe the photogenerated exciton and charge carrier dynamics at the heart of solar energy technologies. The dynamics of electrons and nuclei following the absorption of light involves processes which occur on timescales from femtoseconds to microseconds. The ability to probe these dynamics ....Time-resolved terahertz and optical spectroscopy facility. Time-resolved terahertz and optical spectroscopy facility:
This project aims to use time-resolved terahertz and optical spectroscopy as techniques to probe the photogenerated exciton and charge carrier dynamics at the heart of solar energy technologies. The dynamics of electrons and nuclei following the absorption of light involves processes which occur on timescales from femtoseconds to microseconds. The ability to probe these dynamics is of great importance for understanding the underlying photophysics and photochemistry of a range of technologies including solar photovoltaics and solar photocatalysis. This facility would enable researchers to deeply understand the photophysical processes occurring in advanced photovoltaic and photocatalysis materials and devices and may facilitate the development of advanced materials for renewable energy. Read moreRead less
Discovery Early Career Researcher Award - Grant ID: DE160100504
Funder
Australian Research Council
Funding Amount
$370,000.00
Summary
Intermediate Band Solar Cells Based on Triplet-Triplet Annihilation. This project seeks to develop a new technology which allows solar cells to harvest a broader range of light from the sun, including red and infrared light, to increase solar-to-electric conversion efficiency. It is proposed that this would be accomplished through a series of chemical reactions which allow electrical power to be generated either by conventional means or a multi-step process in which low energy light is ‘glued’ t ....Intermediate Band Solar Cells Based on Triplet-Triplet Annihilation. This project seeks to develop a new technology which allows solar cells to harvest a broader range of light from the sun, including red and infrared light, to increase solar-to-electric conversion efficiency. It is proposed that this would be accomplished through a series of chemical reactions which allow electrical power to be generated either by conventional means or a multi-step process in which low energy light is ‘glued’ together. This is of interest in relation to emerging technologies such as dye-sensitised solar cells, which are low cost, architecturally appealing and amenable to flexible substrates. It is anticipated that this project will provide a means for substantial improvement in solar cell efficiencies.Read moreRead less