Earth-Abundant Cobalt Pyrite (CoS 2) Thin Film on Glass as a Robust, High-Performance Counter Electrode for Quantum Dot-Sensitized Solar Cells

Faber, Matthew S.; Park, Kwangsuk; Cabán-Acevedo, Miguel; Santra, Pralay K.; Jin, Song

doi:10.1021/jz400642e

Earth-Abundant Cobalt Pyrite (CoS 2) Thin Film on Glass as a Robust, High-Performance Counter Electrode for Quantum Dot-Sensitized Solar Cells

We report a cobalt pyrite (cobalt disulfide, CoS2) thin film on glass as a robust, high-performance, low-cost, earth-abundant counter electrode for liquid-junction quantum dot-sensitized solar cells (QDSSCs) that employ the aqueous sulfide/polysulfide (S(2-)/Sn(2-)) redox electrolyte as the hole-…