Thin Films of Oxide Ceramics. Aluminium oxide films are used extensively in the Australian industries of Protective & Decorative Coatings (examples include door-knobs and cutting-tools). The industry will be offered a remarkably simple process for preparation of high quality films. In the microelectronic industry, the uses of aluminium oxide films as a dielectric alternative to silicon dioxide has just started to emerge world - wide and this new process would make a dramatic impact with commerci ....Thin Films of Oxide Ceramics. Aluminium oxide films are used extensively in the Australian industries of Protective & Decorative Coatings (examples include door-knobs and cutting-tools). The industry will be offered a remarkably simple process for preparation of high quality films. In the microelectronic industry, the uses of aluminium oxide films as a dielectric alternative to silicon dioxide has just started to emerge world - wide and this new process would make a dramatic impact with commercial benefits for Australia. Read moreRead less
Special Research Initiatives - Grant ID: SR0354775
Funder
Australian Research Council
Funding Amount
$10,000.00
Summary
Australian Synchrotron Sciences Network. A synchrotron light source is a critical piece of infrastructure for a modern technological nation. In 2001, the Victorian government announced that it would contribute $157M towards the establishment of a national synchrotron facility, becoming operational in 2007. The research performed at such a facility is exceedingly diverse, and often the underpinning technology is the only point of contact for users. A vibrant and productive facility requires a tra ....Australian Synchrotron Sciences Network. A synchrotron light source is a critical piece of infrastructure for a modern technological nation. In 2001, the Victorian government announced that it would contribute $157M towards the establishment of a national synchrotron facility, becoming operational in 2007. The research performed at such a facility is exceedingly diverse, and often the underpinning technology is the only point of contact for users. A vibrant and productive facility requires a transparent interface between the scientist and the technology. This Network will set up the communication channels within the user base, and between the users and the facility development program.Read moreRead less
A Direct Approach to Crystal Structure Determination - a solution to the phase problem. The purpose of this research is to determine the positions of atoms in crystals and nano-crystals. We have developed a theory that shows how to extract all of the information required to determine atomic positions from such crystals and we have carried through initial successful tests on simple materials. In particular, we have found that crystallographic phase, hitherto not directly measurable, can in fact b ....A Direct Approach to Crystal Structure Determination - a solution to the phase problem. The purpose of this research is to determine the positions of atoms in crystals and nano-crystals. We have developed a theory that shows how to extract all of the information required to determine atomic positions from such crystals and we have carried through initial successful tests on simple materials. In particular, we have found that crystallographic phase, hitherto not directly measurable, can in fact be extracted uniquely from a single electron diffraction pattern. This constitutes a solution to the phase problem in crystallography. It is now our aim to develop this method into a routine technique.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0346515
Funder
Australian Research Council
Funding Amount
$507,000.00
Summary
Fluorescence Detector for the Australian National Beamline Facility. X-ray absorption spectroscopy (XAS) is an extremely important synchrotron radiation tool for determining the local structure around an X-ray absorbing atom. This has many applications in the study of materials, minerals, metal complexes, and metalloproteins and can often be used to obtain information that is not available by other techniques, because structural information can be obtained in the solid or solution state and in ....Fluorescence Detector for the Australian National Beamline Facility. X-ray absorption spectroscopy (XAS) is an extremely important synchrotron radiation tool for determining the local structure around an X-ray absorbing atom. This has many applications in the study of materials, minerals, metal complexes, and metalloproteins and can often be used to obtain information that is not available by other techniques, because structural information can be obtained in the solid or solution state and in mixtures. The current proposal is aimed at introducing new technology into the Australian National Beamline Facility that will greatly improve the quality and quantity of experiments that can be performed and extend studies into dilute solutions and protein samples.Read moreRead less
Membrane-associated structure and the effect of metals on Abeta peptide from Alzheimer's disease. Alzheimer's disease currently affects 5% of Australians over 65, and will triple by year 2050 without an effective therapy. Much research to understand the causes of the disease has focused on the distinctive amyloid deposits found in patients' cerebral tissue. Recent evidence suggests that nerve cell death is actually directly caused by soluble forms of the protein fragments and metals that form th ....Membrane-associated structure and the effect of metals on Abeta peptide from Alzheimer's disease. Alzheimer's disease currently affects 5% of Australians over 65, and will triple by year 2050 without an effective therapy. Much research to understand the causes of the disease has focused on the distinctive amyloid deposits found in patients' cerebral tissue. Recent evidence suggests that nerve cell death is actually directly caused by soluble forms of the protein fragments and metals that form these deposits. We will investigate the specific molecular structure of these fragments with metals in relation to vesicles which mimic the nerve cell surface. This information may facilitate future biomedical efforts work to develop therapies, as well as develop general techniques to study similar structural problems.Read moreRead less
Imaging surface topography using Lloyd's Mirror in photo-emission electron microscopy. The wide-ranging and innovative nature of the proposal will significantly raise Australia's international profile in condensed matter physics through high impact publications and invited presentations at major international conferences. Researchers will be trained in cutting-edge electron microscopy and synchrotron science. A spin-off company will be formed to commercialise software for reconstructing surface ....Imaging surface topography using Lloyd's Mirror in photo-emission electron microscopy. The wide-ranging and innovative nature of the proposal will significantly raise Australia's international profile in condensed matter physics through high impact publications and invited presentations at major international conferences. Researchers will be trained in cutting-edge electron microscopy and synchrotron science. A spin-off company will be formed to commercialise software for reconstructing surface topography and generating movies of dynamic events. The development of new synchrotron based electron microscopy techniques will establish the expertise for the future creation of a dedicated nanotechnology beamline equipped with photo-emission electron microscopy which will have far reaching national benefit in the physical sciences.Read moreRead less
Linkage Infrastructure, Equipment And Facilities - Grant ID: LE0347797
Funder
Australian Research Council
Funding Amount
$263,000.00
Summary
A Versatile High-resolution X-ray Diffractometer for Materials Research. The aim of this project is to establish a state-of-the-art triple-axis x-ray diffraction facility capable of non-destructively analysing complex semiconductor materials and structures investigated by all Australian semiconductor-growing groups. Growers and device engineers will be able to control growth processes accurately and correlate device performance with structural analysis. Modern triple-axis instruments can also b ....A Versatile High-resolution X-ray Diffractometer for Materials Research. The aim of this project is to establish a state-of-the-art triple-axis x-ray diffraction facility capable of non-destructively analysing complex semiconductor materials and structures investigated by all Australian semiconductor-growing groups. Growers and device engineers will be able to control growth processes accurately and correlate device performance with structural analysis. Modern triple-axis instruments can also be used for high-resolution texture analysis and surface reflectivity measurements on numerous types of materials. Thus chemists, geologists, and materials scientists with interests outside of the semiconductor growth community will gain substantial benefit from this instrument for the investigation of materials of technological and economic importance.Read moreRead less
Quantum Dot Self-Assembly via Langmuir Decomposition. We will develop a new capability to precisely position quantum structures on surfaces in large-scale patterns, solving a key problem in nanotechnology. We expect to generate patents governing key lithographic technology which will underpin the fabrication of the next generation of devices and we anticipate the generation of spin-off companies in this area. The ability to integrate new quantum structures into optoelectronics will impact everyd ....Quantum Dot Self-Assembly via Langmuir Decomposition. We will develop a new capability to precisely position quantum structures on surfaces in large-scale patterns, solving a key problem in nanotechnology. We expect to generate patents governing key lithographic technology which will underpin the fabrication of the next generation of devices and we anticipate the generation of spin-off companies in this area. The ability to integrate new quantum structures into optoelectronics will impact everyday life from communications and lighting to environmental sensing and medical care. The project will generate key expertise and high level training for post-doctoral fellows and post-graduate students in materials physics and nanotechnology.Read moreRead less
Atom Location by Channelling Enhanced Microanalysis using Inner-shell Electron Energy Loss Spectroscopy. The technique of Atom Location by Channelling Enhanced Microanalysis (ALCHEMI) has been explored extensively using Electron Energy Dispersive X-ray (EDX) measurements by many authors. The extension of this method to Electron Energy Loss Spectroscopy (EELS) is difficult due to the more complicated formulation of inner-shell ionization required under such experimental conditions. Issues such ....Atom Location by Channelling Enhanced Microanalysis using Inner-shell Electron Energy Loss Spectroscopy. The technique of Atom Location by Channelling Enhanced Microanalysis (ALCHEMI) has been explored extensively using Electron Energy Dispersive X-ray (EDX) measurements by many authors. The extension of this method to Electron Energy Loss Spectroscopy (EELS) is difficult due to the more complicated formulation of inner-shell ionization required under such experimental conditions. Issues such as the "delocalization" of the ionization interaction and the significance of channelling of the scattered electron need to be addressed so that this method may be generally applicable. It is the aim of this project to extend this commonly used method to the topical field of EELS.Read moreRead less
The phase and inverse scattering problem for electrons multiply scattered by non-periodic solids. Theoretical methods for the inversion of multiple scattering of electrons in non-periodic solids will be obtained. This will vastly extend the range of utility of atomic resolution electron microscopy and electron tomography, where single scattering conditions are usually assumed. We will further develop our recent novel solutions to the phase problem from images and diffraction patterns (needed as ....The phase and inverse scattering problem for electrons multiply scattered by non-periodic solids. Theoretical methods for the inversion of multiple scattering of electrons in non-periodic solids will be obtained. This will vastly extend the range of utility of atomic resolution electron microscopy and electron tomography, where single scattering conditions are usually assumed. We will further develop our recent novel solutions to the phase problem from images and diffraction patterns (needed as a prelude to the inversion) that are robust in the presence of discontinuities in the phase (such as vortices). These phase retrieval methods will be useful not only for problems in electron optics but also in visible, x-ray, neutron and atom optics.Read moreRead less