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.
Results
Showing 1 to 20 of 39 for “"Polycrystalline silicon"”.
-
Fracture Resistance of Coated Polycrystalline Silicon Wafers
… functional units in the solar energy devices are silicon wafers in both single- and poly-crystalline forms. Their inherent defects and brittleness, however, impair their performance and reliability and can lead to premature fracture. This becomes important in applications in which silicon-based …
-
Polycrystalline Silicon TFTs for Large Area Electronic Application
This work focuses on low and high voltage Thin Film Transistors (TFTs) for large area flat panel displays and the related physical phenomena. All TFT samples in this work were fabricated using a low temperature, glass compatible poly-Si technology. Extensive numerical simulation and experimental …
-
Crystallization in self-implanted polycrystalline silicon-on-insulator films
Bibliography: leaves 118-122.
-
Characterization of chemical vapor deposited polycrystalline silicon thin films
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1986.
-
Contact resistance study on polycrystalline silicon thin-film solar cells on glass
… New South Wales (UNSW) is engaged in developing polycrystalline silicon (poly-Si) thin-film solar cells on glass using e-beam evaporation technology. We believe our solar cells have the potential of significantly lowering the manufacturing cost compared to conventional, PECVD-fabricated thin-film …
-
Electron-beam evaporated polycrystalline silicon thin-film solar cells: paths to better performance
… the other hand. The focus of this thesis is on polycrystalline silicon thin-film solar cells on glass prepared by electron-beam evaporation and solid-phase crystallisation – an emerging technology with a potential to meet the requirements. It combines the advantages of the mature crystalline …
-
Post-crystallisation treatment and characterisation of polycrystalline silicon thin-film solar cells on glass
Polycrystalline silicon on glass is a possible thin-film material for photovoltaic applications. This thesis performs a detailed experimental investigation of the impacts of two post-crystallisation process steps (rapid thermal annealing and hydrogenation) on the electrical properties of poly-Si on …
-
A novel low-temperature growth method of silicon structures and application in flash memory.
… temperature (>600 °C) growth techniques of the Polycrystalline silicon floating gate material are incompatible with 3-D flash memory; with vertically stacked memory layers, which require process temperatures to be ≤ 400 °C. There already exist some low temperature techniques for producing …
-
Fabrication of three-dimensional nanostructures for thermal study
… a colloidal crystal template, opals. Static silicon chemical vapor deposition filled the above templates with amorphous silicon and thermal annealing converted the amorphous silicon to polycrystalline silicon with an average grain size of 10 nanometers. Subsequent etching with dilute …
-
Strain-balanced silicon-germanium materials for near IR photodetection in silicon-based optical interconnects
Strain-balanced silicon-germanium superlattices grown on high quality compositionally graded buffers, or virtual substrates. make a complete range of alloy composition and biaxial strain combinations accessible. This structure is a unique way to achieve high quantum efficiency near IR …
-
Integrated Piezoresistive Sensing for Feedback Control of Compliant MEMS
… utilizes the inherent piezoresistive property of polycrystalline silicon from which many MEMS devices are fabricated. As compliant MEMS structures flex to perform their functions, their resistance changes. That resistance change can be used to transduce the structures' deflection into an …
-
Reduction of Electronic Traps in Organic Semiconductors by Novel Processing Methods
… the high temperature and vacuum as required by polycrystalline silicon. This property has two main advantages: 1) Cuts production cost since the expense of the high-temperature/vacuum equipment is no longer necessary and 2) Broader range of substrates on which the semiconductors can be …
-
A transmission electron microscopy study of inert gases in silicon and iron
… a study of inert gas inclusion in iron and silicon, as a result of ionimplantation. The effect of ion implantation conditions on the formation anddevelopment of inert gas bubbles within these solids has been explored, and the mobilityof these nanoscale bubbles during heating has been …
-
NIR silicon photodetector enhancement using photonic crystal cavity resonators
… has yet to be answered. In this study, we use polycrystalline silicon in conjunction with a photonic crystal cavity (PhCC) to enhance light absorption for efficient sensing. We present a cost-effective alternative to the current III-V detectors. By adding a 2D-PhC resonator layer, …
-
Thermoelectric properties of polysilicon inverse opals
Nanostructured single-crystal silicon exhibits a remarkable increase in the gure of merit for thermoelectric energy conversion. Here we theoretically and experimentally(partial) investigate a similar enhancement for polycrystalline silicon structured as an inverse opal. An inverse opal provides …
-
Fundamental Components for Lamina Emergent Mechanisms
… as diverse as steel, polypropylene, and polycrystalline silicon.
-
Device integration for silicon microphotonic platforms
Silicon ULSI compatible, high index contrast waveguides and devices provide high density integration for optical networking and on-chip optical interconnects. Four such waveguide systems were fabricated and analyzed: crystalline silicon-on-insulator (SOI) strip, polycrystalline silicon (polySi) …
-
Anti-reflection zinc oxide nanocones for higher efficiency thin-film silicon solar cells
Thin film silicon solar cells, which are commonly made from microcrystalline silicon ([mu]c-Si) or amorphous silicon (a-Si), have been considered inexpensive alternatives to thick polycrystalline silicon (polysilicon) solar cells. However, the low solar efficiency of these thin film cells has …
-
Electrical and thermal transport in 2- and 3-dimensional periodic holey silicon
Silicon, one of the most abundant elements on earth, is a promising candidate for thermoelectric applications in the form of different nanostructures. It has been conclusively demonstrated that boundary scattering in nanostructured silicon e ectively reduces thermal transport, resulting in an …
Page 1 of 2