Comment on "Low-frequency lattice phonons in halide perovskites explain high defect tolerance toward electron-hole recombination"

Sunghyun Kim; Aron Walsh

Comment on "Low-frequency lattice phonons in halide perovskites explain high defect tolerance toward electron-hole recombination"

Materials Science 2020-03-12 v1

Authors: Sunghyun Kim , Aron Walsh

Abstract

Halide perovskites exhibit slow rates of non-radiative electron-hole recombination upon illumination. Chu et al. [Sci. Adv. 6 7, eaaw7453 (2020)] use the results of first-principles simulations to argue that this arises from the nature of the crystal vibrations and leads to a breakdown of Shockley-Read-Hall theory. We highlight flaws in their methodology and analysis of carrier capture by point defects in crystalline semiconductors.

Keywords

halide perovskites non-radiative recombination lattice phonons point defects shockley-read-hall theory first-principles simulations

Cite

@article{arxiv.2003.05394,
  title  = {Comment on "Low-frequency lattice phonons in halide perovskites explain high defect tolerance toward electron-hole recombination"},
  author = {Sunghyun Kim and Aron Walsh},
  journal= {arXiv preprint arXiv:2003.05394},
  year   = {2020}
}

Comments

3 pages, 1 table

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