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Mechanosynthesis, Optical, and Morphological Properties of MA, FA, Cs‐SnX 3 (X = I, Br) and Phase‐Pure Mixed‐Halide MASnI x Br 3 – x Perovskites
Author(s) -
Saski Marcin,
Prochowicz Daniel,
Marynowski Wojciech,
Lewiński Janusz
Publication year - 2019
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201801506
Subject(s) - chemistry , halide , mechanosynthesis , formamidinium , powder diffraction , x ray crystallography , phase (matter) , crystallography , diffraction , scanning electron microscope , spectroscopy , absorption spectroscopy , absorption (acoustics) , inorganic chemistry , analytical chemistry (journal) , chemical engineering , organic chemistry , optics , physics , quantum mechanics , engineering , ball mill
Chemical reactions induced by mechanical forces appear to be an efficient method for the synthesis of hybrid inorganic–organic functional materials under mild conditions. Herein, for the first time, we report the mechanochemical strategy for the synthesis of Sn‐based halide perovskites with the formula of ASnX 3 , where A can be methylammonium (MA), formamidinium (FA), or Cs cation, and a family of mixed‐halide MASnI x Br 3‐ x perovskites. The resulting crystalline mechanoperovskites were characterized using powder X‐ray diffraction, UV/Vis absorption spectroscopy, and scanning electron microscopy coupled with energy dispersive X‐ray diffraction. The air stability of the mechanochemically synthesized MASnI 3 without and with the use of a SnF 2 additive was investigated by in situ pXRD measurements.