Dynamics of New Cubic Stabilised Hybrid Perovskites
Hybrid perovskites, composed of an organic cation, inside a post transition metal halide framework, have emerged as simple, low cost solar cell materials, with power conversion efficiencies that are competitive with silicon. The commercial viability of perovskite solar cells is yet to be proven with stability being the major limiting factor. These hybrid perovskites are highly sensitive to environmental conditions and quickly degrade under the mildest of thermal treatment. The root cause of decomposition in MAPbI3 is likely to be the volatility of the MA+ cation, and much research has thus focused on controlling the thermal and chemical stability. We have recently developed a number of procedures to chemically manipulate the MAPBI3 structure to produce new phases with potentially improved photovoltaic properties, as well as heightened stability. We propose to study two new MA1-xPbI3+y phases where pristine MAPbI3 has been chemical modified to posses very different more favourable chemical and physical properties.
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GREEN Mark; APPEL Markus and DAWBER Jessica. (2021). Dynamics of New Cubic Stabilised Hybrid Perovskites. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-02-204
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