FA2PbBr4: Synthesis, Structure, and Unusual Optical Properties of Two Polymorphs of Formamidinium-Based Layered (110) Hybrid Perovskite

Small cations such as guanidinium and cesium can act as templating cations to form low-dimensional perovskite-like phases (two-dimensional (2D), one-dimensional (1D), zero-dimensional (0D)) in the ...