Perspective: Theory and simulation of hybrid halide perovskites

Lucy D. Whalley, Jarvist M. Frost, Young Kwang Jung, Aron Walsh

Research output: Contribution to journalReview article

53 Citations (Scopus)

Abstract

Organic-inorganic halide perovskites present a number of challenges for first-principles atomistic materials modeling. Such "plastic crystals" feature dynamic processes across multiple length and time scales. These include the following: (i) transport of slow ions and fast electrons; (ii) highly anharmonic lattice dynamics with short phonon lifetimes; (iii) local symmetry breaking of the average crystallographic space group; (iv) strong relativistic (spin-orbit coupling) effects on the electronic band structure; and (v) thermodynamic metastability and rapid chemical breakdown. These issues, which affect the operation of solar cells, are outlined in this perspective. We also discuss general guidelines for performing quantitative and predictive simulations of these materials, which are relevant to metal-organic frameworks and other hybrid semiconducting, dielectric and ferroelectric compounds.

Original languageEnglish
Article number220901
JournalJournal of Chemical Physics
Volume146
Issue number22
DOIs
Publication statusPublished - 2017 Jun 14

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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