Entropy in halide perovskites

Claudine Katan, Aditya D. Mohite and Jacky Even discuss the possible impact of various entropy contributions (stochastic structural fluctuations, anharmonicity and lattice softness) on the optoelectronic properties of halide perovskite materials and devices.

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Fig. 1: Sources of dynamic disorder in halide perovskites.

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Acknowledgements

In memory of G. C. Papavassiliou. The work at Los Alamos National Laboratory (LANL) was supported by the LDRD programme (A.D.M.). Part of the work was conducted at the Center for Integrated Nanotechnologies (CINT), a US Department of Energy Office of Science user facility. The work in France was supported by Agence Nationale pour la Recherche (TRANSHYPERO project). ADM acknowledges the DOE_EERE-0001647-1544 programme for funding for this work.

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Katan, C., Mohite, A.D. & Even, J. Entropy in halide perovskites. Nature Mater 17, 377–379 (2018). https://doi.org/10.1038/s41563-018-0070-0

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