April 6, 2017Open Access

Triple-cation mixed-halide perovskites: towards efficient, annealing-free and air-stable solar cells enabled by Pb(SCN)2 additive

YSYong SunQingdao University JPJiajun PengCentral South University YCYani ChenUniversity of Electronic Science and Technology of China

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Abstract

-treated FMC unannealed films present micrometer-sized crystal grains and remarkably high moisture stability. Planar solar cells built upon these unannealed films exhibit a high PCE of 14.09% with significantly suppressed hysteresis phenomenon compared to those of thermal annealing. The corresponding room-temperature fabricated flexible solar cell shows an impressive PCE of 10.55%. This work offers a new avenue to low-temperature fabrication of air-stable, flexible and high-efficiency perovskite solar cells.

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synapsesocial.com/papers/6a033e62f1675f581a75708e https://doi.org/https://doi.org/10.1038/srep46193

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