AI Article Synopsis
- Hybrid halide perovskites AMX are a type of material made up of ammonium cations, divalent cations, and halide elements, and have been largely studied for their optoelectronic properties but are limited to carbon group elements like Ge, Sn, and Pb.
- The instability of Ge and Sn, along with the toxicity of Pb, has motivated researchers to explore alternative divalent cations in perovskites.
- This study presents the synthesis of five new hybrid iodide perovskites using divalent alkaline earth and lanthanide elements, with various structural and optical properties analyzed.
Article Abstract
Hybrid halide perovskites AMX (A = ammonium cation, M = 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 Ge and Sn 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 AMI (A = methylammonium, MA; M = Sr, Sm, Eu, and A = formamidinium, FA; M = Sr, Eu). Structural, calorimetric, optical, photoluminescence, and magnetic properties of these materials are reported.
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| http://dx.doi.org/10.1021/jacs.3c11494 | DOI Listing |
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