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Article Dans Une Revue Physical Review Letters Année : 2020

Modeling of Electronic Mobilities in Halide Perovskites: Adiabatic Quantum Localization Scenario

Résumé

The transport properties of MAPbI3 are analyzed within a tight-binding model. We find a strong Fröhlich interaction of electron and holes with the electrostatic potential induced by the longitudinal optical phonon modes. This potential induces a strong scattering and limits the electronic mobilities at room temperature to about 200 cm2/V s. With additional extrinsic disorder, a large fraction of the electrons and holes are localized, but they can diffuse by following nearly adiabatically the evolution of the electrostatic potential. This process of diffusion, at a rate which is given by the lattice dynamics, contributes to the unique electronic properties of this material.
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hal-03064331 , version 1 (31-05-2023)

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Antoine Lacroix, Guy Trambly de Laissardière, Pascal Quémerais, Jean-Pierre Julien, Didier Mayou. Modeling of Electronic Mobilities in Halide Perovskites: Adiabatic Quantum Localization Scenario. Physical Review Letters, 2020, 124 (19), pp.196601. ⟨10.1103/PhysRevLett.124.196601⟩. ⟨hal-03064331⟩
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