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Subbiah, Anand S; Halder, Ansuman; Ghosh, Soham; Mahuli, Neha; Hodes, Gary; Sarkar, Shaibal K
The journal of physical chemistry letters, 05/2014, Letnik: 5, Številka: 10Journal Article
Hybrid organic–inorganic semiconducting perovskite photovoltaic cells are usually coupled with organic hole conductors. Here, we report planar, inverse CH3NH3PbI3–x Cl x -based cells with inorganic hole conductors. Using electrodeposited NiO as hole conductor, we have achieved a power conversion efficiency of 7.3%. The maximum V OC obtained was 935 mV with an average V OC value being 785 mV. Preliminary results for similar cells using electrodeposited CuSCN as hole conductor resulted in devices up to 3.8% in efficiency. The ability to obtain promising cells using NiO and CuSCN expands the presently rather limited range of available hole conductors for perovskite cells.
