Regensburg 2013 – scientific programme
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HL: Fachverband Halbleiterphysik
HL 58: Focus Session: Copper oxide semiconductors – An attractive material for photovoltaics?
HL 58.1: Topical Talk
Wednesday, March 13, 2013, 15:00–15:30, H13
Potential and possibilities of copper oxide compounds — •Bruno K. Meyer — 1. Physics Institute, Justus Liebig University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany
Many current thin film materials used in photovoltaics have resource limitations e.g. CdTe, CIGS. Earth Abundant Semiconductors such as Cu2O, Zn3P2, or FeS2 are currently under investigations since apart from abundance, sustainability, non-toxicity of the elements, and numerous methods for thin film deposition that facilitate low cost production are equally important aspects. In the talk the synthesis and characterisation of Cu2O thin films used as p-type absorbers in heterojunction solar cells will be reported. We discuss i) controlled p-type doping by nitrogen ii) the role of the possible n-type dopant Zn, and iii) tuning of the energy gap by alloy formation.