Sökning: "Gallium-Arsenide"

Visar resultat 6 - 10 av 20 uppsatser innehållade ordet Gallium-Arsenide.

  1. 6. 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

  3. 7. 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

  4. 8. 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

  5. 9. Properties of III-V semiconductor materials grown by HVPE

    Master-uppsats, KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Författare :Stamoulis Stergiakis; [2016]
    Nyckelord :;

    Sammanfattning : This thesis focuses on the characterization of lll-V semiconductor materials by using Scanning Electron Microscopy equipped with Energy Dispersive Spectroscopy (SEM-EDS), High Resolution X-ray Diffraction (HRXRD), Atomic Force Microscopy (AFM) and Photoluminescence (PL). In XRD characterization, the rocking curve measurement was conducted to evaluate the composition of III-V semiconductor alloys and the Reciprocal Lattice Mapping (RLM) revealed the detailed structural properties of heteroepitaxial III-V semiconductors. LÄS MER

  7. 10. Energy Harvesting Device

    Uppsats för yrkesexamina på avancerad nivå, Lunds universitet/Industriell elektroteknik och automation

    Författare :Driton Salihu; [2016]
    Nyckelord :Energy Harvesting; Rechargeable Batteries; Supercapacitor; ABB; PV; Solar cells; Radio Frequency; Piezoelectric; Thermoelectric generators; PMIC; Amorphous-silicon; Gallium-Arsenide; MPPT; PCB.; Technology and Engineering;

    Sammanfattning : This thesis evaluates the concept of Energy Harvesting as a power source for a serial measurement board used by ABB robots. A background study of possible energy harvesters is included, where the main focus is put on the overall function and what parameters determine the maximum generated power and efficiencies. LÄS MER