Berlin 2015 – scientific programme

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DS: Fachverband Dünne Schichten

DS 36: Poster Session I

DS 36.93: Poster

Thursday, March 19, 2015, 09:30–12:00, Poster A

CIGS Islands for Micro-Concentrator Solar Cells — •Franziska Ringleb¹, Torsten Boeck¹, Berit Heidmann², Martina Schmid², Christian Symietz³, Jörn Bonse³, and Jörg Krüger³ — ¹IKZ, Max-Born-Straße 2, 12489 Berlin — ²HZB, Hahn-Meitner-Platz 1, 14109 Berlin — ³BAM, Unter den Eichen 44-46, 12203 Berlin

Cu(In,Ga)Se2 (CIGS) is a commonly used absorber material in thin film photovoltaics. However, the high costs of raw materials constitute a challenge for industrial production, such that there is a demand for alternative, more efficient cell designs. In demonstration experiments, CIGS micro-concentrator cells have in principle been shown to increase the efficiency while saving source material. A bottom-up process for the preparation of ordered arrays of isolated micro-absorbers is being developed based on arranging precursor islands on a laser patterned substrate.