Dynamics of the formamidinium organic cation in mixed hybrid inorganic-organic perovskites
The proposed research focuses on a detailed characterisation of the dynamics of the formamidinium organic cation in a class of novel mixed hybrid inorganic-organic perovskites, i.e. MA1-xFAxPbI3 (MA = methylammonium, CH3NH3; FA = formamidinium, CH(NH2)2+; x = 0, 0.25, 0.50, 0.75 and 1.0), with a view towards their application in perovskite solar cells. To capture the different types of dynamics of the formamidinium organic cation over a large temperature range, we will employ several complementary spectrometers (IN16b, IN6 and IN5), as well as D7 to check the possible presence of ferroelectric or antiferroelectric domains, which should affect considerably the functional properties of these technologically important materials. The proposed studies are embedded in a larger research program focused on the characterisation and development of hybrid inorganic-organic perovskites, by means of several complementary techniques, such as X-ray and neutron diffraction etc.
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KARLSSON Maths; KOZA Michael Marek; LAVEN Rasmus; MALAVASI LORENZO and PERRICHON Adrien. (2018). Dynamics of the formamidinium organic cation in mixed hybrid inorganic-organic perovskites. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-03-169
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