Sökning: "Amorphous silicon"

Visar resultat 6 - 10 av 21 uppsatser innehållade orden Amorphous silicon.

  1. 6. 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

  3. 7. 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

  4. 8. 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

  5. 9. Comparison of the performance of silicon and thin film solar cells at the laboratory of the University of Gävle

    Magister-uppsats, Högskolan i Gävle/Avdelningen för bygg- energi- och miljöteknik

    Författare :Cristian Baena Juan; [2016]
    Nyckelord :solar cell performance; crystalline silicon; thin film CIGS; energy conversion efficiency; performance ratio;

    Sammanfattning : The huge environmental awareness emerging last years by reason of global warming and greenhouse effect, on one hand, and the need of finding other sources of energy production and conversion due to the declining of fossil resources and the increasing cost of this kind of energy resource, on the other hand, both have led position renewable energies as a powerful alternative on the energy production and conversion. PV-systems have emerged at an exponential rate in recent year as the main candidate and a satisfactory possibility with respect to environmental and economic sustainability. 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