Product Name:    Formamidinium Lead Iodide

Synonyms:    Perovskite FAPbI3 Powder;Formamidinium triiodoplumbate;FAPbI3 CH(NH2)2PbI3, Formamidinium Iodide Perovskite;CH(NH2)2PbI3(FAPbI3);FAPbI3 CH(NH2)2PbI3, Formamidinium Iodide Perovskite, >99%;Formamidinium Lead Iodide;FAPbI3;Perovskite FAPbI3 Single Crystals

CAS:    1451592-07-6

MF:    CH8I3N2Pb

Currently, the high-efficiency perovskite solar cells are predominantly fabricated with formamidinium lead iodide (FAPbI3), which exhibits higher thermal stability against decomposition into the secondary compound of PbI2, a broader absorption spectrum that extends further into the red, and an ideal bandgap (~1.4?eV) closer to the Shockley–Queisser optimum, as compared with the prototypical methylammonium lead iodide (MAPbI3). The superior optoelectronic properties of FAPbI3 originate from the high-symmetry cubic perovskite structure (black α-phase). At room temperature, the black phase, also known as α- phase, of FAPbI3, evolves towards the most stable non-perovskite hexagonal yellow δ-phase (δ-FAPbI3) because α-FAPbI3 is thermodynamically unstable at temperatures below 150 °C