Unraveling the Impact of Combined NaF/RbF Postdeposition Treatments on the Deeply Buried Cu(In,Ga)Se2/Mo Thin‐Film Solar Cell Interface

• Published in: Advanced Energy and Sustainability Research Vol. 2; no. 11
• Main Authors: Bombsch, Jakob, Avancini, Enrico, Carron, Romain, Handick, Evelyn, Garcia-Diez, Raul, Hartmann, Claudia, Félix, Roberto, Abou-Ras, Daniel, Ueda, Shigenori, Wilks, Regan G., Bär, Marcus
• Format: Journal Article
• Language: English
• Published: Argonne Wiley 01.11.2021; John Wiley & Sons, Inc; Wiley-VCH
• Subjects: Absorbers (materials); back interfaces; Buried structures; Carbon; chalcopyrite thin-film solar cells; Copper; Copper indium gallium selenides; Cu(In; Electronic structure; Environmental technology. Sanitary engineering; Ga)Se2; hard X ray photoelectron spectroscopy ; back interfaces ; chalcopyrite thin film solar cells; hard X-ray photoelectron spectroscopy; Interfaces; Molybdenum; Photoelectron spectroscopy; Photoelectrons; Photovoltaic cells; Photovoltaics; postdeposition treatment; Renewable energy sources; Rubidium; Sodium fluoride; Solar cells; Spectrum analysis; TD1-1066; Thin films; TJ807-830

Cu(In,Ga)Se2 (CIGSe) is a promising absorber material for thin‐film photovoltaic devices. A key procedure to achieve high efficiencies is the application of alkali fluoride postdeposition treatments (PDT) of the CIGSe surface. While the effects of the PDT on the directly impacted CIGSe front surface...