FAPb 0.5 Sn 0.5 I 3 : A Narrow Bandgap Perovskite Synthesized through Evaporation Methods for Solar Cell Applications

Narrow Bandgap Perovskites In article number 1900283, Pablo P. Boix, Henk J. Bolink, and co-workers demonstrate a novel procedure to prepare narrow bandgap perovskite solar cells by precursor sublimation. The formamidinium tin lead iodide perovskite obtained reproduces a targeted bandgap of 1.28 eV. This study serves as a proof of concept for the preparation of tin-lead solar cells through this method.