FA2PbBr4: synthesis, structure and unusual optical properties of two polymorphs of formamidinium-based layered (110) hybrid perovskite

Sergey A. Fateev, Andrey A. Petrov, Ekaterina I. Marchenko +6

Small cations such as guanidinium and cesium can act as templating cations to form low dimensional phases (2D, 1D, 0D) in the case of excess of organic halides. However, such phase…