Nanoclusters with Extraordinary Properties Made out of Ordinary Materials. Ultrafast laser deposition - a process pioneered by the Applicants - has already demonstrated record yields in the production of carbon-based nano-clustered materials with better control over the size of the nano-particles than any other process. This project aims to improve fundamental understanding of the ultra-fast laser deposition method of nano-fabrication through theoretical and experimental studies, which accurate ....Nanoclusters with Extraordinary Properties Made out of Ordinary Materials. Ultrafast laser deposition - a process pioneered by the Applicants - has already demonstrated record yields in the production of carbon-based nano-clustered materials with better control over the size of the nano-particles than any other process. This project aims to improve fundamental understanding of the ultra-fast laser deposition method of nano-fabrication through theoretical and experimental studies, which accurately correlate the ablation conditions to the structural, electronic, magnetic and optical properties of resulting nano-particles. The results will be applied to efficiently produce nano-clustered materials with tuneable properties for a wide range of new technologies such as spintronics, biophotonics, and nanoclinics.Read moreRead less
High-energy electron scattering of surfaces: new spectroscopies and new physics. Electrons sometimes behave as particles, and sometimes as waves. Both aspects are used when investigating nano-structures with electron beams. In this research program we design and perform experiments to measure sample composition using the particle nature, and the atom positions by using the wave nature of electrons. These novel experiments, using unique spectrometers designed and developed in Australia, are aime ....High-energy electron scattering of surfaces: new spectroscopies and new physics. Electrons sometimes behave as particles, and sometimes as waves. Both aspects are used when investigating nano-structures with electron beams. In this research program we design and perform experiments to measure sample composition using the particle nature, and the atom positions by using the wave nature of electrons. These novel experiments, using unique spectrometers designed and developed in Australia, are aimed at making new forms of electron microscopy possible, but will also result in a better understanding of existing electron microscopies and synchrotron-based measurements.Read moreRead less
Synchrotron radiation techniques applied to melting and resolidification at a nanometric scale. By delivering underpinning knowledge of melting characteristics of nanoparticles, the proposal seeks results that can lead to breakthrough applications in advanced materials engineering. Measurements of the liquid nanoparticle structure performed at the Australian Synchrotron are unprecedented and are thus likely to include the development of new methodology. National and international exposure of Aus ....Synchrotron radiation techniques applied to melting and resolidification at a nanometric scale. By delivering underpinning knowledge of melting characteristics of nanoparticles, the proposal seeks results that can lead to breakthrough applications in advanced materials engineering. Measurements of the liquid nanoparticle structure performed at the Australian Synchrotron are unprecedented and are thus likely to include the development of new methodology. National and international exposure of Australian science and the Australian Synchrotron will have both scientific and economic ramifications. Involvement of students will contribute to developing the local synchrotron knowledge base and is beneficial to the Australian synchrotron-research community as a whole.Read moreRead less
Charge transport and trapping in high-k dielectric films containing self-assembled nanocrystals. Growth in the use of portable electronic devices such as mobile phones, iPods, MP3-players and personal digital assistants (PDA's) has resulted in increased demand for low-power, high-density Flash memory. However, existing memory devices are difficult to scale to smaller dimensions and lower power without severely compromising reliability. This project will investigate the synthesis and properties ....Charge transport and trapping in high-k dielectric films containing self-assembled nanocrystals. Growth in the use of portable electronic devices such as mobile phones, iPods, MP3-players and personal digital assistants (PDA's) has resulted in increased demand for low-power, high-density Flash memory. However, existing memory devices are difficult to scale to smaller dimensions and lower power without severely compromising reliability. This project will investigate the synthesis and properties of a new class of materials that have the potential to overcome these limitations. Read moreRead less
Ultrafast photonic hammer: A new strategy to synthesise super-dense super-hard nanomaterials. We will develop a new way for laboratory synthesis of new classes of super-hard and super-dense materials at and above the extremely high temperature and density range currently accessible only in nuclear explosions. The ability of ultra-fast laser-induced phase transformations will be exploited aiming to form materials with exotic properties, which are theoretically predicted, but has not experimental ....Ultrafast photonic hammer: A new strategy to synthesise super-dense super-hard nanomaterials. We will develop a new way for laboratory synthesis of new classes of super-hard and super-dense materials at and above the extremely high temperature and density range currently accessible only in nuclear explosions. The ability of ultra-fast laser-induced phase transformations will be exploited aiming to form materials with exotic properties, which are theoretically predicted, but has not experimentally confirmed yet. Our new approach will have a profound interdisciplinary impact. The project will deliver underpinning knowledge, foremost practical expertise, and the prominent training of young researchers to secure Australia's international position among the leaders in the rapidly growing and competitive field of nanotechnology.Read moreRead less
Boron Nitride Nanotub Synthesis and Applications. Boron nitride (BN) nanotubes have an analogous structure to carbon nanotubes but offer many electronic and chemical properties. This project aims to synthesis BN nanotubes with controlled structures using a mechano-thermal method involving ball milling of boron powder at room temperature followed by thermal annealing in nitrogen gas. Systematic investigation will be conducted to clarify the fundamental formation mechanism related to various nano ....Boron Nitride Nanotub Synthesis and Applications. Boron nitride (BN) nanotubes have an analogous structure to carbon nanotubes but offer many electronic and chemical properties. This project aims to synthesis BN nanotubes with controlled structures using a mechano-thermal method involving ball milling of boron powder at room temperature followed by thermal annealing in nitrogen gas. Systematic investigation will be conducted to clarify the fundamental formation mechanism related to various nanostructures. New chemical, mechanical and thermal properties and possible applications will be explored. The outcomes of this research will be profoundly understanding of the controlled assembly of small atoms into nanosized tubules and an innovative synthesis technology.Read moreRead less
Special Research Initiatives - Grant ID: SR0354821
Funder
Australian Research Council
Funding Amount
$30,000.00
Summary
Innovative Materials Production, Processing and Analysis Network. Materials science and engineering is decidedly interdisciplinary, covering a diverse spectrum of research from biology to construction, with an equally broad applications span encompassing all manufacturing industry. Australia has distinct strengths in materials but it has been difficult to promote sufficient interaction across discipline boundaries to fully exploit such strengths. The current network focuses on interdisciplinar ....Innovative Materials Production, Processing and Analysis Network. Materials science and engineering is decidedly interdisciplinary, covering a diverse spectrum of research from biology to construction, with an equally broad applications span encompassing all manufacturing industry. Australia has distinct strengths in materials but it has been difficult to promote sufficient interaction across discipline boundaries to fully exploit such strengths. The current network focuses on interdisciplinary materials interactions nationally by: i) bringing the materials community together at an annual workshop, ii) exposing PhD students and young researchers to cross-disciplinary research initiatives and facilities, iii) identifying common infrastructure needs, iv) linking with industry networks, eg AMTN, and to the international community.Read moreRead less
Many-Electron Dynamics and Electronic Structure of Materials Studied by Electron Momentum Spectroscopy. Electron momentum spectroscopy is a technique that resembles playing pool with electrons. This technique, largely developed in Australia, determines the binding energy and velocity distribution of electrons in matter. This distribution, closely related to the quantum mechanical wave function of the electrons, can be compared directly with calculations of the electronic structure. Such a compa ....Many-Electron Dynamics and Electronic Structure of Materials Studied by Electron Momentum Spectroscopy. Electron momentum spectroscopy is a technique that resembles playing pool with electrons. This technique, largely developed in Australia, determines the binding energy and velocity distribution of electrons in matter. This distribution, closely related to the quantum mechanical wave function of the electrons, can be compared directly with calculations of the electronic structure. Such a comparison helps establish which theory approaches nature most closely, and thus improves our understanding of the electronic structure. This understanding helps to predict the properties of materials, and hence this knowledge will facilitate the design of materials with desirable properties.Read moreRead less
Formation of nanocrystals (or nanocrystals with core/shell structure) and applications for photonics, floating gate and magnetic memory. Materials that contain nanometre-sized crystallites of a second material can exhibit novel optical, electrical and magnetic properties that have direct technological application. However, it is often difficult to control the size and concentration of the small crystals using conventional synthesis techniques. This project will overcome these limitations by ex ....Formation of nanocrystals (or nanocrystals with core/shell structure) and applications for photonics, floating gate and magnetic memory. Materials that contain nanometre-sized crystallites of a second material can exhibit novel optical, electrical and magnetic properties that have direct technological application. However, it is often difficult to control the size and concentration of the small crystals using conventional synthesis techniques. This project will overcome these limitations by exploiting the unique properties of pulsed-laser heating to produce the crystals. It will also investigate the optical, electrical and magnetic properties of these new materials and asses their suitability for super-dense data storage, solid-state lighting and advanced detection systems.Read moreRead less
Switching mechanisms in nonvolatile resistive memory using high-k dielectrics. Growth in the use of portable electronic devices, such as cameras, phones and MP3 players has resulted in an increased demand for low-power, high-density, non-volatile memory (NVM). One class of such memories aims to use resistance changes in thin dielectric films as a means of storing information. This project aims to develop a better understanding of these devices and to develop new and innovative processes for co ....Switching mechanisms in nonvolatile resistive memory using high-k dielectrics. Growth in the use of portable electronic devices, such as cameras, phones and MP3 players has resulted in an increased demand for low-power, high-density, non-volatile memory (NVM). One class of such memories aims to use resistance changes in thin dielectric films as a means of storing information. This project aims to develop a better understanding of these devices and to develop new and innovative processes for controlling data storage. The project is based on collaboration between researchers at the ANU and Silanna, an Australian start-up company aiming to develop and commercialise such technology.Read moreRead less