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 12 of 12 for “"Single nanowire"”.
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Design and fabrication of nanostructures for thermal conductivity measurements and picosecond acoustics
… platform for thermal conductivity measurement in single nanowire is presented. Thermal conductivity of single nanowire is interested especially for Si nanowire with rough surface for efficient thermoelectric device. This MEMS platform is design to have capability of measuring not only thermal …
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Synthesis and surface chemistry of zinc oxide nanowires for chemical sensor applications
… and functionalization of high quality ZnO nanowires for highly sensitive and selective p-nitrophenol vapor sensor. High-quality ZnO nanowires were synthesized through a vapor-liquid-solid process in a customized chemical vapor deposition furnace. Scanning electron microscopy, transmission …
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Hydrothermal synthesis of zinc oxide nanowire arrays for photovoltaic applications
Zinc oxide (ZnO) nanowires with excellent crystal quality can be grown vertically aligned from a substrate using hydrothermal synthesis, a low-cost, scalable process that is compatible with many semiconductor processing techniques. However, precise control over nanowire array dimensions such as …
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Highly Sensitive and Selective Gas Sensors Based on Vertically Aligned Metal Oxide Nanowire Arrays
… reactivity, three dimensional (3D) metal oxide nanowire arrays were used as the active materials for gas detection. Metal oxide nanowire arrays share similar 3D structures as the array of mammal's olfactory receptors and the chemical reactivity of nanowire array can be modified by surface …
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Design and analysis of solar cells by coupled electrical - optical simulation
… In this work, the thin-film GaAs solar cell, the single nanowire solar cell, and the GaInP/GaAs tandem solar cell are investigated. For solar cell characterization, this work examines the validity of the reciprocity theorem and quantitative lifetime parameter extraction using Time-Resolved …
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Fabrication, assembly, and electrical characterisation of gold nanowire
… manipulation and characterisation of gold nanowires. Porous alumina membranes have been electrochemically fabricated as templates for the deposition of gold nanowires. They consist of a thick oxide membrane, shown to be perforated by a high density array of isolated cylindrical pores, with …
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In-fiber semiconductor filament arrays
… for the fabrication of uniform and high quality nanowires. Two challenges toward nanoelectronics and other applications remain: on the single-nanowire level, precisely manipulating an individual nanowire for the sophisticated functionalities, and on the multiple-nanowire level, integrating …
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Metal-organic nanowires
Metal-organic nanowires exhibit not only the properties of one-dimensional structures including ultra-small scale, large surface-to-volume ratio etc., but also obvious advantages in their tunable properties and label-free sensing ability by optical or electrical readout. Thus, the evaluation of …
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Controlled Lasing in Gallium Nitride Nanowires
… sources. A strong candidate is a semiconductor-nanowire laser, where a single, monolithic nanowire functions simultaneously as an optical microcavity and active medium, leading to an extremely compact and robust laser. Recent advances in nanowire synthesis have enabled realization of optically …
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Macroscopic quantum tunneling in superconducting nanowire devices
… by which a macroscopic object, rather than a single electron, tunnels between two macroscopically distinct quantum states. In this dissertation, we will present the study of macroscopic quantum tunneling of phase-slips in superconducting devices, including one-dimensional nanowires, …
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Nanowire Transistors and RF Circuits for Low-Power Applications
… the industry standard, silicon (Si), used today. Nanowires are semiconductor rods, with two dimensions at the nanoscale, which can be either grown with a bottom-up technique, or etched out with a top-down approach. The research interest concerning nanowires has gradually increasing for over two …
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Storage and transport of energy in nanostructures
… another abundant material, in the form of a nanowire has been experimentally examined as a candidate material for thermoelectric applications to harvest waste heat. We designed and fabricated a device to gauge the thermoelectric figure of merit of nano-structured materials by simultaneous …