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 20 of 363 for “"nanowire"”.
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Planar nanowire high electron mobility transistor and down-scaling of planar nanowire
Monolithically grown planar nanowire (NW) high electron mobility transistors (NW-HEMTs) have been demonstrated with self-aligned <110> planar GaAs NW channels capped by a thin film AlGaAs barrier. The planar NW-HEMTs exhibit uniform and scalable DC characteristics; and resolve the electrical …
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Optical fibre nanowire devices
The Optical Fibre Nanowire (OFN) is a potential building block in future micro- and nano-photonic device since it offers a number of unique optical and mechanical properties. In this thesis, the background and fundamental features of nanowires are introduced; the theory, design and demonstration of …
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InAs Nanowire Devices and Circuits
… electronic circuits is transistors based on nanowires. The nanowire transistor structure investigated in this work combines a number of key technologies to achieve a higher performance than traditional Si-based transistors. Epitaxially grown nanowires are naturally oriented in the vertical …
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Nanowire sharpening : application to field ionization
Nanowires show potential for a wide range of fields, from developing next generation solar cells, to detecting viruses, to field ionizing gasses. Their uses in such disparate fields are due to the extreme flexibility in which nanowires can be manufactured and customized to order. The heart of a …
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Nanowire Zinc Oxide MOSFET Pressure Sensor
… sensor using self-assembly Zinc Oxide (ZnO) nanowires on top of the gate of a Metal-Oxide-Semiconductor Field-Effect Transistor (MOSFET) is presented. Self-assembly ZnO nanowires were fabricated with a diameter of 80 nm and 800 nm height (80:8 aspect ratio) on top of the gate of the MOSFET. …
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Gallium nitride nanowire growth and characterization
Includes bibliographical references (pages 109-117).
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Superconducting nanowire electronics for alternative computing
… computing system using superconducting nanowires. Although traditionally operated as single photon detectors, superconducting nanowires host a suite of attractive characteristics that have recently inspired their use in digital circuit applications for amplification, addressing, and …
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Stability Investigation of Silicon Nanowire Solar Cells
… techniques used in developing solar cells' nanowire active layer used here. The metal insulator semiconductor structure in which the semiconductor is made of Silicon nanostructures is used in this work to study and investigate the Silicon nanostructure's stability. The back contact and …
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Self-organized criticality in neuromorphic nanowire networks
L'abstract è presente nell'allegato / the abstract is in the attachment
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Vertical InAs Nanowire Devices and RF Circuits
… architecture. In this thesis, MOSFETs based on nanowires, are investigated. Taking advantage of the nanowire geometry, the gate can be wrapped all-around the nanowires for excellent control of the channel. The nanowires are made in a high-mobility III-V semiconductor, InAs, allowing for faster …
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Macroscopic quantum tunneling in superconducting nanowire devices
… devices, including one-dimensional nanowires, quasi-two-dimensional superconducting strips and doubly connected superconducting devices composed of two nanowires connected in parallel. We observe macroscopic quantum tunneling in these devices by measuring switching current …
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Vertical silicon nanowire arrays for gas sensing
… and characterize vertically aligned silicon nanowire gas sensors. Silicon nanowires are very attractive for gas sensing applications and vertically aligned silicon nanowires are preferred over horizontal nanowires for gas sensing due to the high density of nanowire arrays and the increased …
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Fabrication of superconducting nanowire single proton detectors
… motivation in fabricating superconducting nanowire single-photon detectors (SN-SPD) is to fulfill this need. The SN-SPD's reported GHz counting rates [1] make it very attractive for this application. A new fabrication process for making SN-SPDs using hydrogen-silsesqioxane (HSQ), a …
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Multi-element superconducting nanowire single photon detectors
… but the high performance of superconducting nanowire single photon detectors (SNSPDs) and the unavoidable overhead of cryogenic cooling make SNSPDs particularly likely to be used in applications that require detectors with the highest performance available. These applications are also the …
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FABRICATION AND OPTICAL RESPONSE OF SILVER NANOWIRE METAMATERIALS
… 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 Drude …
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Polycaprolactone nanowire surfaces as interfaces for cardiovascular applications
… purpose of this research is to study polymeric nanowire surfaces as potential interfaces for cardiovascular applications by investigating cellular response as well as hemocompatibility.
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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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