Sökning: "Gallium-Arsenide"

Visar resultat 1 - 5 av 17 uppsatser innehållade ordet Gallium-Arsenide.

  1. 1. Passivation of Gallium Arsenide Nanowires for Solar Cells

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Austin Irish; [2019]
    Nyckelord :nanowires; semiconductors; solar cells; photovoltaics; passivation; electronics; chemistry; polymers; hydrazine; plasma; gallium; arsenic; iii-v; epitaxy; photoluminescence; time-resolved; spectroscopy; Physics and Astronomy;

    Sammanfattning : A strategic and diverse set of passivation methods for gallium arsenide nanowires wasstudied. Using a time-resolved photoluminescence setup at100 Kand300 K, the radiativerecombination of charge carriers was resolved on a picosecond time scale. LÄS MER

  2. 2. I-V and Optical Characterization of InP/InAsP Quantum Disc-in-Nanowire Infrared Photodetectors

    Magister-uppsats, Högskolan i Halmstad/Akademin för informationsteknologi

    Författare :Divya Raval; [2019]
    Nyckelord :Nanowires; Infrared photodetectors; Quantum disc; Photocurrent;

    Sammanfattning : Photodetectors are semiconductor devices capable of converting optical signals into electrical signals. There is a wide range of applications for photodetectors such as fiber optics communication, infrared heat camera sensors, as well as in medical and military equipment. LÄS MER

  3. 3. Microscopy techniques for studying polymer-polymer blends

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Sandra Mattsson; [2019]
    Nyckelord :CLEM; correlative light and electron microscopy; correlative microscopy; fluorescence microscopy; scanning electron microscopy; phase contrast microscopy; polymer blend; morphology; super yellow; PEO; poly ethylene oxide ; CLEM; korrelativ ljus- och elektronmikroskopi; korrelativ mikroskopi; fluorescensmikroskopi; svepelektronmikroskopi; faskontrastsmikroskopi; polymerblandning; morfologi; super yellow; PEO; poly etylenoxid ;

    Sammanfattning : Semiconductors are used in many electronic applications, for example diodes, solar cells and transistors. Typically, semiconductors are inorganic materials, such as silicon and gallium arsenide, but lately more research and development has been devoted to organic semiconductors, for example semiconducting polymers. LÄS MER

  4. 4. Nano-Bio Interactions: The Myeloperoxidase Enzyme and Gallium Arsenide Nanowires

    Master-uppsats, Lunds universitet/Fysiska institutionen

    Författare :Cesare Mellace; [2018]
    Nyckelord :Nanowires; Gallium Arsenide; Myeloperoxidase; Nanoscale interaction; Cryogenic Electron microscopy; Fluorescence; Physics and Astronomy;

    Sammanfattning : With the increasing use of nanomaterials in industrial production, the concept of Nanosafety has acquired importance for human and environmental protection. A complete evaluation on the potential risks of a determined nanomaterial cannot prescind from the molecular mechanism of interaction between nanomaterials and biomolecules. LÄS MER

  5. 5. Light-trapping nanostructures in ultrathin GaAs solar cells : towards a record efficiency

    Master-uppsats, Lunds universitet/Fasta tillståndets fysik; Lunds universitet/Fysiska institutionen

    Författare :Romaric De Lepinau; [2016]
    Nyckelord :solar cells; photovoltaics; 3-5; III-V; Gallium Arsenide; light-trapping; resonance; nanostructure; nano-imprint; Technology and Engineering;

    Sammanfattning : Producing electrical power with photovoltaic solar panels is very attractive as the sun constitutes an inexhaustible source of clean energy. However, in order to make it a better alternative to other energy sources, its drawbacks must be addressed. LÄS MER