Toward All Room-Temperature, Solution-Processed, High-Performance Planar Perovskite Solar Cells: A New Scheme of Pyridine-Promoted Perovskite Formation.

Zhang, Hong; Cheng, Jiaqi; Li, Dan; Lin, Francis; Mao, Jian; Liang, Chunjun; Jen, Alex K-Y; Grätzel, Michael et al. · Adv Mater · 2017

basic_science · Level V

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Abstract

A new, all room-temperature solution process is developed to fabricate efficient, low-cost, and stable perovskite solar cells (PVSCs). The PVSCs show high efficiency of 17.10% and 14.19%, with no hysteresis on rigid and flexible substrates, respectively, which are the best efficiencies reported to date for PVSCs fabricated by room-temperature solution-processed techniques. The flexible PVSCs show a remarkable power-per-weight of 23.26 W g<sup>-1</sup> .