Journal article

How lattice dynamics moderate the electronic properties of metal-halide perovskites

Abstract:: Metal-halide perovskites have emerged as highly promising semiconductors with excellent optoelectronic properties. This Perspective outlines how the dynamic response of the ionic lattice affects key electronic properties such as exciton binding energies and charge-carrier mobilities in hybrid perovskites. Such links are shown to derive from the frequency-dependence of the dielectric function, which is governed by contributions from electronic interband transitions, polar vibrations of the metal-halide sublattice, organic cation collective reorientations, and ionic movement. The influence of each of these contributions to charge-carrier screening and carrier–lattice interactions is discussed, which allows for general trends with material composition to be revealed. Overall, this Perspective highlights the challenges and questions arising from the peculiar combination of a soft polar metal-halide sublattice interspersed with rotationally mobile dipolar molecules that is encountered in hybrid metal-halide perovskites.

Publication status:: Published

Peer review status:: Peer reviewed

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APA Style

Herz, L. (2018). How lattice dynamics moderate the electronic properties of metal-halide perovskites. Journal of Physical Chemistry Letters, 9(23), 6853–6863.

MLA Style

Herz, L. “How Lattice Dynamics Moderate the Electronic Properties of Metal-Halide Perovskites.” Journal of Physical Chemistry Letters, vol. 9, no. 23, American Chemical Society, 2018, pp. 6853–63.

Chicago Style

Herz, L. 2018. “How Lattice Dynamics Moderate the Electronic Properties of Metal-Halide Perovskites.” Journal of Physical Chemistry Letters 9 (23): 6853–63.
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Files:: Herz, How lattice dynamics moderate the electronic properties,...

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Publisher copy:: 10.1021/acs.jpclett.8b02811

Authors

+ Herz, L More by this author

Institution:: University of Oxford
Division:: MPLS
Department:: Physics
Sub department:: Condensed Matter Physics
Oxford college:: Nuffield College
Role:: Author
ORCID:: 0000-0001-9621-334X

+ Engineering and Physical Sciences Research Council More from this funder

Grant:: EP/P033229/1

Publisher:: American Chemical Society
Journal:: Journal of Physical Chemistry Letters More from this journal
Volume:: 9
Issue:: 23
Pages:: 6853–6863
Publication date:: 2018-11-13
Acceptance date:: 2018-11-13
DOI:: 10.1021/acs.jpclett.8b02811
EISSN:: 1948-7185

Pubs id:: pubs:944431
UUID:: uuid:bc43a4a7-edea-4daa-a593-02e1b62f39fc
Local pid:: pubs:944431
Source identifiers:: 944431
Deposit date:: 2018-11-20

Terms of use

Copyright holder:: American Chemical Society
Copyright date:: 2018
Notes:: © 2018 American Chemical Society. ACS AuthorChoice - This is an open access article published under a Creative Commons Attribution (CC-BY) License, which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.

Licence:: CC Attribution (CC BY)

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