Sökning: "Amorphous silicon"

Visar resultat 1 - 5 av 18 uppsatser innehållade orden Amorphous silicon.

  1. 1. Tailoring the magnetic anisotropy in amorphous FeZr-based thin films on flexible and solid substrates

    Master-uppsats,

    Författare :Matteo Menniti; [2018]
    Nyckelord :amorphous; magnetic; materials; anisotropy; material characterization; iron; cobalt; zirconium; boron; moke; magneto optical; tailoring; material design; flexible; magnetostriction; functional materials; sensor;

    Sammanfattning : In this thesis the magnetic properties of novel amorphous magnetic materials grown on a flexible substrate of polyethylene naphthalate and a silicon wafer have been analyzed and characterized. The analyzed films are two films of amorphous Cobalt-Iron-Zirconium(Co36Fe53Zr11 & Co37Fe55Zr8) grown on the flexible substrate and two films of amorphous (Fe89Zr11) doped with boron (B). LÄS MER

  2. 2. Energy harvesting with solar cells for wireless alarm nodes

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

    Författare :Tobias Olofsson; [2018]
    Nyckelord :energy harvesting; solar cells; alarm nodes; Technology and Engineering;

    Sammanfattning : Energiförbrukningen i elektronikprodukter minskar samtidigt som prestandan för solceller hela tiden ökar. Nya solcellstyper med lägre priser skapar nya möjligheter för använding även i små elektronikprodukter. Att samla energi från omgivningen, t.ex. LÄS MER

  3. 3. SnOx electron selective layers for perovskite/silicon tandem solar cells using atomic layer deposition

    Master-uppsats, KTH/Energiteknik

    Författare :Lisa Anna Zafoschnig; [2018]
    Nyckelord :;

    Sammanfattning : In this work the application of ALD deposited SnOx films as electron transport layers in perovskite solar cells is analysed. Processes to fabricate homogeneous, transparent and conductive tin oxide films were developed on an Oxford Instruments FlexAL tool using a TDMASn precursor and H2O as oxidiser. LÄS MER

  4. 4. A Meta-Analysis on Solar Cell Technologies

    Kandidat-uppsats, Mittuniversitetet/Avdelningen för elektronikkonstruktion

    Författare :Farid Mohammadi; [2017]
    Nyckelord :Solar cell; Photovoltaics; Amorphous silicon; Monocrystalline silicon; Polycrystalline silicon; Cupper indium gallium selenide; Cadmium telluride; Thin film; Efficiency; Fill factor;

    Sammanfattning : The objective of this study is analysing the characteristics of five different solar cell technologies regarding their efficiency, fill factor, cost and environmental impacts and comparing their improvement records over years considering their efficiency. The five solar cell technologies of interest are amorphous silicon, monocrystalline silicon, polycrystalline silicon, cupper indium gallium selenide thin film and cadmium telluride thin film. LÄS MER

  5. 5. Understanding Sn-seeded InSb nanowire growth

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

    Författare :Hengfang Zhang; [2017]
    Nyckelord :Science General;

    Sammanfattning : III-Sb semiconductor nanowires have drawn a lot of attention because of their many promising applications, such as thermoelectric generation, low power high efficient electronics and quantum transport. Gold as a catalyst seed particle has been dominating for many years assisting nanowires growth. LÄS MER