Sökning: "C Platzer-Björkman"

Hittade 3 avhandlingar innehållade orden C Platzer-Björkman.

  1. 1. Sputtering-based processes for thin film chalcogenide solar cells on steel substrates

    Författare :Patrice Bras; Charlotte Platzer-Björkman; Eric Jaremalm; Jan Sterner; Veronica Bernudez; Uppsala universitet; []
    Nyckelord :CIGS; CZTS; solar cell; photovoltaics; thin film; sputtering; annealing; gallium grading; blister; uniformity; stainless steel; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Sammanfattning : Thin film chalcogenide solar cells are promising photovoltaic technologies. Cu(In,Ga)Se2 (CIGS)-based devices are already produced at industrial scale and record laboratory efficiency surpasses 22 %. Cu2ZnSn(S,Se)4 (CZTS) is an alternative material that is based on earth-abundant elements. LÄS MER

  3. 2. Modeling and electrical characterization of Cu(In,Ga)Se2 and Cu2ZnSnS4 solar cells

    Författare :Christopher Frisk; Charlotte Platzer-Björkman; Jörgen Olsson; Janez Krč; Uppsala universitet; []
    Nyckelord :;

    Sammanfattning : In this thesis, modeling and electrical characterization have been performed on Cu(In,Ga)Se2 (CIGS) and Cu2ZnSnS4 (CZTS) thin film solar cells, with the aim to investigate potential improvements to power conversion efficiency for respective technology. The modeling was primarily done in SCAPS, and current-voltage (J-V), quantum efficiency (QE) and capacitance-voltage (C-V) were the primary characterization methods. LÄS MER

  4. 3. Alternative back contacts for CZTS thin film solar cells

    Författare :Sven Englund; Charlotte Platzer Björkman; Jonathan J. Scragg; Levent Gütay; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; CZTS; thin film solar cells; back contacts; passivation; interface; titanium nitride; ATO; antimony-doped tin oxide; transparent back contact; CZTS; tunnfilmssolceller; bakkontakter; passivering; gränsskikt; mellanskikt; titannitrid; antimondopad tennoxid; ATO; transparent bakkontakt; Teknisk fysik med inriktning mot elektronik; Engineering Science with specialization in Electronics;

    Sammanfattning : In this thesis, alternative back contacts for Cu2ZnSnS4 (CZTS) thin film solar cells were investigated. Back contacts for two different configurations were studied, namely traditional single-junction cells with opaque back contacts and transparent back contacts for possible use in either tandem or bifacial solar cell configuration. LÄS MER