Intrinsic Charge Transport across Phase Transitions in Hybrid Organo‐Inorganic Perovskites | Zendy

Yi Hee Taek | Zendy; Wu Xiaoxi | Zendy; Zhu Xiaoyang | Zendy; Podzorov Vitaly | Zendy

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Intrinsic Charge Transport across Phase Transitions in Hybrid Organo‐Inorganic Perovskites

Author(s) -

Yi Hee Taek,

Wu Xiaoxi,

Zhu Xiaoyang,

Podzorov Vitaly

Publication year - 2016

Publication title -

advanced materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 10.707

H-Index - 527

eISSN - 1521-4095

pISSN - 0935-9648

DOI - 10.1002/adma.201600011

Subject(s) - materials science , tetragonal crystal system , condensed matter physics , charge (physics) , charge carrier , scattering , piezoelectricity , phase (matter) , carrier scattering , exponent , space charge , phonon , perovskite (structure) , phase transition , phonon scattering , chemical physics , crystallography , electron , optics , optoelectronics , physics , chemistry , linguistics , philosophy , quantum mechanics , composite material

Hall effect measurements in CH 3 NH 3 PbBr 3 single crystals reveal that the charge‐carrier mobility follows an inverse‐temperature power‐law dependence, μ ∝ T − γ , with the power exponent γ = 1.4 ± 0.1 in the cubic phase, indicating an acoustic‐phonon‐dominated carrier scattering, and γ = 0.5 ± 0.1 in the tetragonal phase, suggesting another dominant mechanism, such as a piezoelectric or space‐charge scattering.

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