Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 15 of 15 for “"nanoscale patterning"”.
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Nanoscale Patterning of Chemical Order Introduced by Displacement Cascades in Irradiated Alloys
… that 1MeV Kr ion irradiation can lead to patterning, whereas 70keV He ion cannot. Experimentally, we propose to use HRTEM imaging to identify the patterning of chemical order in Ni3Al.
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The Design Of A Nanolithographic Process
… process for nanometer scale surface patterning. The process involves the combination of serial atomic force microscope (AFM) based nanolithography with the parallel patterning capabilities of soft lithography. The union of these two techniques provides for a unique approach to …
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The effects of polydispersity on the morphology of polystyrene-polyferrocenyldimethylsilane block copolymer thin films
… of electronic and magnetic devices decreases, nanoscale patterning becomes an increasingly important area of research. Two different approaches have been taken to pattern media: top-down methods such as lithography, and bottom-up methods such as self-assembly. Top-down assembly methods have the …
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Defects, thermal phenomena and design in photonic crystal systems
… the system or the materials used. For instance, nanoscale patterning can enhance emission at certain frequencies, while point defects can localize light at microcavities. General periodic electromagnetic structures, also known as photonic crystals, are therefore a natural medium in which to carry …
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Applications of emerging optoelectronic materials : lead sulphide quantum dots and steam cracker tar
… the development of direct nanoimprinting as a nanoscale patterning method for PbS QDs and other nanoparticles; experimental and computational work to improve our understanding of the anomalously large Stokes shift in PbS QDs; the development of a novel processing method to produce …
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Characterization of nanostructured hexagonal boron nitride patterned via high-resolution ion beam lithography
… (2D) materials focuses on pushing the limits of patterning 2D materials into nanoresonators and other nanophotonic structures that manipulate highly confined polaritons for technologically relevant near-IR and mid-IR applications. Furthermore, tuning the properties of hexagonal boron nitride, …
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Novel Thin Film Nanogap Device Fabrication And 3D Integration Enabled By Adhesion Lithography
… the electronics industry has already entered the nanoscale era. Therefore, the combination of nanoscale device feature size and low-temperature and low-cost fabrication processes for LAE is now drawing great attention in many ways. Hence, there is a requirement to seek proper nanoscale patterning …
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Molecular-Level Investigations Combining Nanoscale Lithography and Atomic Force Microscopy
… nanostructures of OTS were used as a resist for patterning fibronectin, an extracellular matrix protein. Particle lithography provides a practical and reproducible approach to generate billions of nanostructures comprised of organic thin films or nanomaterials. A film of mesospheres can be …
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Novel advancements in nanofabrication for photonic crystal applications
… controlled defects. No single conventional nanoscale patterning technique is able to fulfil all of these requirements simultaneously. Pattern placement and throughput challenges for planar lithography can be addressed by combining spatial-phase-locked electron-beam lithography (SPLEBL) with …
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The formation and characterisation of micro- and nanostructured surfaces through combinations of top-down and bottom-up fabrication methodologies
… in this thesis explores work on micro and nanoscale patterning and structuring, towards 3D patterning of surfaces. The undertaking of such work is key to the advancement in areas such as microelectronics, nanotechnology and device and sensor fabrication. Chapter 1 (Nanotechnology: …
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Transport of molecules through and on carbon nanostructures
… can deliver a flow of material locally, to grow nanoscale features. The model application was the growth of a graphene nanoribbon on a surface. I explored a variety of analytical mathematical models to understand the parameters and limitations of such a system. I developed a simple simulation of …
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Pattern formation and magnetism in pulsed laser-induced self-organized nanostructures from single and bilayer metallic films
… experimental and theoretical mechanisms of nanoscale patterning by dewetting self-organization was explored in nanoscopic thickness single and bilayer metal films. Magnetism in the resulting nanostructures was also explored. Experimental techniques included thin film deposition, laser …
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Characterisation of focused ion beam nanostructures by transmission electron microscopy
… in a controlled manner can be used as a tool for nanoscale patterning. Results are presented from investigations into the effect of Ga+ ion dose on the magnetic and structural properties of permalloy thin film systems. Systems consisting of a permalloy layer of either 10nm or 20nm, and one or more …
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Solid-state superionic conductors for advanced nanoscale fabrication
… with visible light when patterned at the nanoscale. Few methods exist for patterning silver down to sub-100nm scales, and all tend to be complicated, multi-step processes which require ex- pensive equipment. This work examines the use of the solid electrolyte glass silver iodide-silver …
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Surface instabilities and interfacial phenomena for nanomanufacturing at the atomically-thin limit
… and assembly of 2D and other low-dimensional nanoscale materials, the combination of which contributes to an ever-growing toolset of capabilities towards layer-by-layer nanomanufacturing at the atomically-thin limit. This dissertation details new methods that have been developed to …