Abstract

Copper oxide (CuO x ) thin films were produced by spin-coating and electrodeposition methods, and their microstructures and photovoltaic properties were investigated. Thin film solar cells based on the Cu 2O/C 60 and CuO/C 60 heterojunction or bulk heterojunction structures were fabricated on F-doped or In-doped SnO 2, which showed photovoltaic activity under air mass 1.5 simulated sunlight conditions. Microstructures of the CuO x thin films were examined by X-ray diffraction and transmission electron microscopy, which indicated the presence of Cu 2O and CuO nanoparticles. The energy levels of the present solar cells were also discussed.

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