Greggory T Kent, Jiale Zhuang, Kaitlin R Albanese, Arava Zohar, Emily Morgan, Anna Kallistova, Linus Kautzsch, Alexander A Mikhailovsky, Pratap Vishnoi, Ram Seshadri, Anthony K Cheetham
Hybrid halide perovskites AMII X3 (A = ammonium cation, MII = divalent cation, X = Cl, Br, I) have been extensively studied but have only previously been reported for the divalent carbon group elements Ge, Sn, and Pb. While they have displayed an impressive range of optoelectronic properties, the instability of GeII and SnII and the toxicity of Pb have stimulated significant interest in finding alternatives to these carbon group-based perovskites. Here, we describe the low-temperature solid-state synthesis of five new hybrid iodide perovskites centered around divalent alkaline earth and lanthanide elements, with the general formula AMII I3 (A = methylammonium, MA; MII = Sr, Sm, Eu, and A = formamidinium, FA; MII = Sr, Eu)...
December 9, 2023: Journal of the American Chemical Society