Sökning: "CIGS"

Visar resultat 1 - 5 av 31 uppsatser innehållade ordet CIGS.

  1. 1. A comparative study of ZnO i-layer deposited with ALD and PVD for CIGS solar cells

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Joel Johansson Byberg; [2019]
    Nyckelord :CIGS; ZnO; ZnMgO; solar cells; thin film; zinc oxide; window layer; ALD; PVD;

    Sammanfattning : Two identified setbacks for CIGS based devices in order to obtain higher efficiency are parasitic absorption in the window layer structure and losses in open-circuit voltage due to bad interfaces. This study investigated how the performance of the solar cell is affected by depositing intrinsic ZnO (i-ZnO) and ZnMgO with atomic layer deposition (ALD) instead of the conventional sputtering. LÄS MER

  2. 2. A comparison study of PV and battery technologies for EWB off-grid electrification projects in Sub-Saharan Africa

    Kandidat-uppsats, KTH/Hållbar utveckling, miljövetenskap och teknik; KTH/Hållbar utveckling, miljövetenskap och teknik

    Författare :Felix Vedin; Camilla Sandström; [2018]
    Nyckelord :PV; Photovoltaic; Solar cells; Solar panels; Batteries; Africa; Sub-Sahara; Mikronät; Comparison; Case study; Simulation; Manual; EWB; Engineers without borders; Solceller; Solpaneler; Batterier; Afrika; Sub-Sahara; Mikronät; Jämförelse; Simulation; Manual; Ingenjörer utan gränser;

    Sammanfattning : Only 10 % of the rural population in Sub-Saharan Africa has access to electricity. At the same time the Sub-Saharan countries are close to the equator and get many sun hours a day, leading to a huge potential for solar energy. LÄS MER

  3. 3. Developing a Combinatorial Synthesis Database Tool

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Luciano Quaglia Casal; [2018]
    Nyckelord :MATLAB; combinatorial synthesis; combinatorial synthesis analysis; thin-film solar cells; abundant materials; PV; photovoltaics; data analysis; CZTS; CIGS; CdTe;

    Sammanfattning : Thin-film solar cell research is central to the electricity production of the near future. Photovoltaic technologies based on silicon have a significant portion of the global market and installed capacity. LÄS MER

  4. 4. Compositional gradients in sputtered thin CIGS photovoltaic films

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Fasta tillståndets elektronik

    Författare :Daniel Boman; [2018]
    Nyckelord :CIGS; sputtering; GGI; Ga-grading; Thin film solar cells;

    Sammanfattning : Cu(In,Ga)Se2 (CIGS) is a semiconductor material and the basis of the promising thin-film photovoltaic technology with the same name. The CIGS film has a typical thickness of 1-2 mm, and solar cells based on CIGS technology has recently reached efficiencies of 23.3%. LÄS MER

  5. 5. Mechanical design and construction of solar panel experiment in stratospheric conditions

    Kandidat-uppsats, Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper

    Författare :Oscar Hultmar; Johan Paulsson; Jonathan Sundell; [2018]
    Nyckelord :CIGS solar cells; cosmic radiation; stratospheric conditions;

    Sammanfattning : This project will be a part of the LODESTAR experiment. LODESTAR is one of the experiments scheduled to fly on the REXUS/BEXUS 26 high altitude balloon flight. The primary objective of the experiment is to investigate the effects of cosmic radiation on CIGS solar cells. LÄS MER