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 19 of 19 for “"silver nanowires"”.
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Smoothing silver nanowires for optoelectronic applications
Silver nanowire meshes have shown potential for becoming a more robust, flexible alternative to traditional ceramic and brittle metal oxides. However, the current methods employed at making these films are not scalable and the high aspect ratios limit their final use. Spray coating is a technique …
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Development of Strontium Titanate Based Nanomaterials for Resistive Switching Applications
… (3) To explore the potential applications of silver nanowires as electrodes and artificial filaments, controlled fragmentation of silver nanowires has been realized through ultraviolet (UV)/ozone irradiation and a low-temperature annealing process. Based on the fragmented silver nanowire …
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Fully Solution Processed PEDOT:PSS and Silver Nanowire Semi-Transparent Electrodes for Thin Film Solar Cells
… oxide (ITO) transparent electrode. PEDOT:PSS and silver nanowire transparent electrodes have emerged as a promising alternative to ITO and are solution processed compatible. However, PEDOT:PSS requires a strong acid treatment, which is incompatible with high throughput solution processed …
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Unraveling the Reconfiguration Dynamics of Silver Nanowire Networks under Electrothermal Stress
… shaky supply chain and brittleness. Networks of silver nanowires show many advantages over ITO, but they suffer from problems with durability. In this work, we focus on electrothermal instability and provide new insights into the electrothermal drivers of silver nanowire network failure. First, …
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FABRICATION AND OPTICAL RESPONSE OF SILVER NANOWIRE METAMATERIALS
… are smaller than the operational wavelength. Silver nanowires are useful as optical electromagnetic subunits because they can be designed to mimic natural electromagnetic subunits (i.e. atoms and molecules). Small nanowires exhibit particle plasmon resonances, and long nanowires follow the …
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Fabrication of novel sensors from nanomaterials
… incorporating either carbon nanotubes or silver nanowires as the nanomaterials of interest. These have been fabricated using either mixing or in situ polymerisation routes, with surfactants, polysaccharides or conducting polymers as the dispersant. The composites are all soluble in either …
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Analysis of engineered nanomaterials in the environment
… NPs such as ZnO, CeO2, and TiO2, as well as silver nanowires and carbon nanotubes. A lack of nanoparticulate "pulses" in spICPMS analysis of nano-ZnO led to a study on ZnO NP solubility in a variety of matrices. Dissolution of nano-ZnO was observed in nanopure water (7.18 - 7.40 mg/L …
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ULTRA-FAST LASER ENHANCED PRINTING OF NANOMATERIAL FOR HIGH QUALITY TRANSPARENT ELECTRODE
… Aluminum doped zinc oxide nanoparticles and silver nanowires were chosen as the printable nanomaterials. The laser – nanomaterial interaction and temperature evolution was studied by Comsol Multiphysics software. The nature intrinsic of laser induced localized nanowelding was simulated by …
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Development of Li0.33La0.56TiO3 based Solid Electrolyte Materials
… to LLTO, and composite pellets of LLTO and silver nanowires were also fabricated. The LLTO synthesized by acetic acid was found to have the strongest intensity, minor impurity, and the biggest crystallite size from XRD patterns and Rietveld refinement compared with LLTO synthesized by citric …
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Molecular Dynamics Simulations of the Mechanical Deformation Behavior of Face-Centered Cubic Metallic Nanowires
… copper, gold, nickel, palladium, platinum, and silver nanowires of three cross-sectional shapes and four diameters. The cross-sectional shapes investigated were square, circular, and octagonal while the diameters varied from one to eight nanometers. Due to a high surface area to volume ratio, …
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Multi-Scale Architecture-Driven Design of Ultra-Soft Conductive Composites for Flexible and Wearable Sensing Applications
… pressure, and cyclic testing. Second, hybrid silver nanowires (AgNW) and CNT-BBE sandwich structures were developed using spray-deposited interlayers to create tunable nanoscale conductive networks. Network density was controlled via deposition iterations, with eight spray cycles yielding the …
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Electrochemical Sensor for Metal Ions and Phosphate Ion Detection for Biomedical and Agriculture Application
… sensors were made using novel graphene oxide/silver nanowire (GO/AgNWs) composite as working electrode. The phosphate electrochemical sensors were fabricated using ammonium molybdate tetrahydrate/silver nanowires (AMT/AgNWs) modified screen printed electrode. Most of the heavy metals such as …
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Nanoscale Semiconductor Materials and Devices Employing Hybrid 1D and 2D Structures for Tunable Electronic and Photonic Applications
… thesis explores the possibility of growing InSb nanowires using solution based electrodeposition technique followed by field effect transistor studies. InSb nanowires have recently shown very promising magneto-transport properties at low temperatures and with magnetic field due to its high spin …
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Understanding the Toxicity Effects of Nanostructures: I. Effect of Physico-chemical Properties on Environmentally Relevant Organismal Toxicity. II. Design of Novel Nanostructures to Reduce Environmental Toxicity while Retaining Functional Properties
… for its reduction through engineering. Nano silver, nano carbon, and nano copper were chosen as the subjects of study due to their prevalent use in consumer products, and likely entrance into the environment during use and disposal. </p><p>The majority of the research focuses on silver …
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Hierarchical Semiconductor, Metal and Hybrid Nanostructures and the Study of their Light-matter Interactions
… A composite material consisting of an array of silver nanowires (NWs) in a dielectric host has been produced based on the theory of a non-magnetic optical cloak. The required radial array of silver NWs was achieved by electroless deposition of the metal into the channels of a porous alumina …
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Synthesis and growth dynamics study of silver nanoparticles
… this chapter In Chapter three the synthesis of silver nanoparticles with varying morphologies using different synthetic routes are described in detail. Silver nanowires were synthesized by an aqueous route using dimethyl formamide (DMF) as the reducing agent in the presence of poly …
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The Impact of Morphology and Composition on the Resistivity and Oxidation Resistance of Metal Nanostructure Films
… are often comprised of expensive and rare silver particles. Thin film applications such as organic light emitting diodes (OLEDs) and organic photovoltaics (OPVs) predominantly employ indium tin oxide (ITO) as the transparent conductive layer which requires expensive and wasteful vapor …
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Development of Multifunctional Polymer Nanocomposites with Hybrid Structures for Fabrication of Stretchable Strain Sensing and Wearable Electronic Devices
… nanofillers such as carbon nanotubes (CNTs), silver nanowires (AgNWs) and stainless steel fibers (SSFs) were employed due to their effective network connections in polymers. Developing effective filler network structures in polymers even facilitated reducing electrical and strain sensing …
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Electron beam processing and spectroscopic characterisation of 2D materials and novel nanostructures
… as etch precursors for other materials such as silver nanowires. This two step etching process was then reimagined using an in-situ delocalised plasma and electron beam irradiation to widen the scope of etch-able materials such as silver, using a gas phase etch process. These results broaden the …