Facile Synthesis of FAPbI3 Nanorods.

Metal halide perovskites are promising materials for a range of applications. The synthesis of light-emitting perovskite nanorods has become popular recently. Thus far, the facile synthesis of perovskite nanorods remains elusive. In this work, we have developed a facile synthesis to fabricate FAPbI3 nanorods for the first time, demonstrating a high photoluminescence quantum yield of 35-42%. The fabrication of the nanorods has been made possible by carefully tuning the concentration of formamidine-oleate as well as the amount of oleic acid with pre-dissolved PbI2 in toluene with oleic acid/oleylamine.