Sökning: "chalcogenide"

Visar resultat 6 - 8 av 8 avhandlingar innehållade ordet chalcogenide.

  1. 6. First-Principles Study on Electronic and Optical Properties of Copper-Based Chalcogenide Photovoltaic Materials

    Författare :Rongzhen Chen; Clas Persson; Maria G. Ganchenkova; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; density functional theory; electronic structure; dielectric function; absorption coefficient; copper-based chalcogenides; ultra-thin film; Teknisk materialvetenskap; Materials Science and Engineering;

    Sammanfattning : To accelerate environmentally friendly thin film photovoltaic (PV) technologies, copper-based chalcogenides are attractive as absorber materials. Chalcopyrite copper indium gallium selenide (CIGS ≡ CuIn1–xGaxSe2) is today a commercially important PV material, and it is also in many aspects a very interesting material from a scientific point of view. LÄS MER

  3. 7. Nano-EngineeredThermoelectric Materials for Waste Heat Recovery

    Författare :Mohsin Saleemi; Muhammet Toprak; Mari-Ann Einarsrud; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Energy crisis and thermal management related issues have been highlighted in the modern century due to escalating demands for energy consumption and global warming from fossil fuels. Sustainable and alternative energy sources are an ever growing global concern. LÄS MER

  4. 8. Synthesis, Electrophoretic Deposition, and Characterization of Nanostructured Thermoelectric Materials

    Författare :Hazal Batili; Muhammet Toprak; Oliver Fenwick; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Thermoelectric; Bismuth telluride; Antimony telluride; Hydrothermal synthesis; Thermolysis; Polyol; Electrophoretic deposition; EPD; Seebeck coefficient; Thermoelectric power factor; Colloidal stabilization; Material and Nano Physics; Material- och nanofysik;

    Sammanfattning : The world’s increasing demand for energy and supplying this energy dominantlyfrom fossil fuels has a major impact on global climate change. Theenergy crisis has gotten more alarming in the recent years which increasedthe motivation for replacing fossil fuels with greener routes for energy harvest. LÄS MER