Dynamics of the formamidinium organic cation in mixed hybrid inorganic-organic perovskites
The aim of this continuation proposal is to provide a detailed characterization of the local dynamics of the formamidinium organic cation in the mixed hybrid inorganic-organic perovskites MA1-xFAxPbI3 (MA = methylammonium, CH3NH3; FA = formamidinium, CH(NH2)2). To complement our previous experiment, we here propose to use IN16B in order to probe the dynamics in the low temperature phases, as well as to measure on N-deuterated FAPbI3 at IN5 in order to discriminate between the different rotational contributions of FA. The results will be linked to structural studies by diffraction techniques in order to provide a detailed understanding of the FA dynamics over a wide temperature range.
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LAVEN Rasmus; APPEL Markus; KARLSSON Maths; KOZA Michael Marek; MALAVASI LORENZO and PERRICHON Adrien. (2019). Dynamics of the formamidinium organic cation in mixed hybrid inorganic-organic perovskites. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-03-181
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