Cation Ordering - A Strategy to Prepare Multiferroic Oxides. This project will produce new families of functional metal oxides with technologically relevant properties, especially multiferroic behavior. Such materials are highly sort-after in the rapidly emerging field of spintronics. Through comprehensive experimental studies of a number of such materials this project will enhance the ability of industry to develop new and improved materials.
Contributions to the foundations upon which true crystal engineering of functional solids will be based. The emerging area of crystal engineering promises to provide access to sophisticated materials tailored for specific applications. A major thrust of the proposed work is concerned with controlling the interactions and thus the arrangement of small molecular building blocks used to construct such materials. Through a variety of novel approaches that are proposed, we expect that our research wo ....Contributions to the foundations upon which true crystal engineering of functional solids will be based. The emerging area of crystal engineering promises to provide access to sophisticated materials tailored for specific applications. A major thrust of the proposed work is concerned with controlling the interactions and thus the arrangement of small molecular building blocks used to construct such materials. Through a variety of novel approaches that are proposed, we expect that our research work will provide a valuable scientific contribution to the development of crystal engineering, whilst affording an excellent training ground for the sorts of scientists upon whom Australia's future prosperity will depend.Read moreRead less
Molecular Framework Materials: Nanoporosity and Anomalous Thermal Expansion. The design and construction of advanced nanomaterials represents both a key area of fundamental research and a critical step in the push towards smarter and more efficient high-level technologies. Here we explore the strategic assembly of molecular materials that have entirely new and highly useful properties, namely, nanoporosity and anomalous thermal expansion. This innovative work will lead to important fundamental ....Molecular Framework Materials: Nanoporosity and Anomalous Thermal Expansion. The design and construction of advanced nanomaterials represents both a key area of fundamental research and a critical step in the push towards smarter and more efficient high-level technologies. Here we explore the strategic assembly of molecular materials that have entirely new and highly useful properties, namely, nanoporosity and anomalous thermal expansion. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how materials properties relate to nanoscale structure. These advances will spur a wide range of important new technologies, with application of the materials in molecular separations and sensing, clean energy storage, electronics and photonics.Read moreRead less
Advanced Molecular Nanomaterials. The design and construction of advanced nanomaterials is a key step in the push towards smarter and more efficient high-level technologies. Here we mount a major research program into the strategic assembly of molecular nanomaterials that have entirely new and highly useful properties. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how materials properties relate to nanoscale structure. Th ....Advanced Molecular Nanomaterials. The design and construction of advanced nanomaterials is a key step in the push towards smarter and more efficient high-level technologies. Here we mount a major research program into the strategic assembly of molecular nanomaterials that have entirely new and highly useful properties. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how materials properties relate to nanoscale structure. These advances will spur a wide range of important new technologies, with application of the materials in electronics, photonics, molecular sensing, drug synthesis and purification, clean energy and the controlled release of agrochemicals and pharmaceuticals.Read moreRead less
Structural and Electronic Properties of Layered Bismuth Oxides. A systematic study of the role of cation substitutions and temperature on the structural and electronic properties of a number of layered bismuth oxides will undertaken with the aim of developing improved ferroelectric materials for use in electronic devices.
Complex Phenomena and Phase Transitions in Ferroric Perovskites. The ultimate aim of this project is to identify high performance, multiferroic magnetoelectrics suitable for use in the next generation electronic devices. These oxides exhibit a strong interaction between the polarisation and magnetic response. Understanding the factors that control the response of such materials to applied magnetic and electric fields is critical to the discovery, optimization and, ultimately, industrial exploi ....Complex Phenomena and Phase Transitions in Ferroric Perovskites. The ultimate aim of this project is to identify high performance, multiferroic magnetoelectrics suitable for use in the next generation electronic devices. These oxides exhibit a strong interaction between the polarisation and magnetic response. Understanding the factors that control the response of such materials to applied magnetic and electric fields is critical to the discovery, optimization and, ultimately, industrial exploitation of such materials. Through comprehensive experimental and theoretical studies of a number of such materials this project will enhance the ability of industry to develop new and improved materials. Development of advanced materials is a designated National Research Priority area. Read moreRead less
Advanced Functional Properties in Coordination Framework Materials. The design and construction of advanced nanomaterials represents both a key area of fundamental research and a critical step in the push towards smarter and more efficient high-level technologies. Here we explore the strategic synthesis of molecular materials that have entirely new and highly useful properties, namely, nanoporosity and negative thermal expansion. This innovative work will lead to important fundamental advances ....Advanced Functional Properties in Coordination Framework Materials. The design and construction of advanced nanomaterials represents both a key area of fundamental research and a critical step in the push towards smarter and more efficient high-level technologies. Here we explore the strategic synthesis of molecular materials that have entirely new and highly useful properties, namely, nanoporosity and negative thermal expansion. This innovative work will lead to important fundamental advances in nanoscience and will forge deep understandings of how physical properties relate to nanoscale structure. These advances will spur a wide range of important new technologies, with future application of the materials in molecular separations, sensing, energy conversion, electronics and photonics.Read moreRead less
The effects of local strain on the crystal chemistry of solid solutions. The concept of the solid solution, the substitution of one kind of atom for another in a crystal structure, is a central idea in both mineral sciences and solid state chemistry. Such atomic substitutions alter local crystal chemistry and hence always introduce strain into crystal lattices. In this project we aim to characterize this substitutional strain. Ultimately this should lead to a better understanding of the geologic ....The effects of local strain on the crystal chemistry of solid solutions. The concept of the solid solution, the substitution of one kind of atom for another in a crystal structure, is a central idea in both mineral sciences and solid state chemistry. Such atomic substitutions alter local crystal chemistry and hence always introduce strain into crystal lattices. In this project we aim to characterize this substitutional strain. Ultimately this should lead to a better understanding of the geological history of rocks, improvements in metal recovery from ores and to the design and synthesis of new materials.Read moreRead less
Electronic and Optical Properties of Doped Titanium Dioxide. Titanium dioxide, is widely used as a white pigment, owing to its high refractive index, second, only after diamond. Yellowing of rutile pigment particles, observed on prolonged exposure to sunlight, is a serious problem that pigment manufacturers would like to overcome. It is proposed that aluminium-doping of rutile limits this discolouration by altering the electronic structure of the rutile particles. This project seeks to identify ....Electronic and Optical Properties of Doped Titanium Dioxide. Titanium dioxide, is widely used as a white pigment, owing to its high refractive index, second, only after diamond. Yellowing of rutile pigment particles, observed on prolonged exposure to sunlight, is a serious problem that pigment manufacturers would like to overcome. It is proposed that aluminium-doping of rutile limits this discolouration by altering the electronic structure of the rutile particles. This project seeks to identify the specific electronic cause of the yellowing process, the nature of the Al defect,it's effect on the electronic structure of rutile, and the electronic perturbations that may occur when other dopants are used.Read moreRead less
Development of metal probes for the selective recognition of DNA. Transition metal complexes with large aromatic ligands have recently been shown to bind DNA by intercalation. However, controversy continues over their base sequence and groove selectivity. We will synthesise a range of chiral metal complexes and screen these against combinatorial oligonucleotide libraries to determine their base sequence selectivity. The information obtained will help us design better intercalators that can be us ....Development of metal probes for the selective recognition of DNA. Transition metal complexes with large aromatic ligands have recently been shown to bind DNA by intercalation. However, controversy continues over their base sequence and groove selectivity. We will synthesise a range of chiral metal complexes and screen these against combinatorial oligonucleotide libraries to determine their base sequence selectivity. The information obtained will help us design better intercalators that can be used as sensitive molecular probes and may find application as antitumour drugs. Binding interaction between the complex and DNA will be studied by NMR spectroscopy.Read moreRead less