Thin films of MAPbI3 and MA0.15FA0.75Cs0.1PbI3 perovskites under femtosecond laser irradiation: nonlinear optical absorption and kinetics of photodegradation

Dmitry V. Khudyakov, Daniil V. Ganin, Andrey D. Lyashedko, Lubov A. Frolova, Pavel A. Troshin, Anatoly S. Lobach

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

The thin MAPbI3 and MA0.15FA0.75Cs0.1PbI3 perovskite films have strong nonlinear absorption with coefficients of 443 ± 20 and 830 ± 50 cm GW–1, respectively, due to two-photon absorption at 1064 nm. The photochemical degradation of perovskite films was observed upon irradiation with femtosecond pulses at 532 nm, and the depth of photodegradation decreased in perovskite films protected with a PMMA polymer layer.

Original languageEnglish
Pages (from-to)456-458
Number of pages3
JournalMendeleev Communications
Volume31
Issue number4
DOIs
Publication statusPublished - 1 Jul 2021
Externally publishedYes

Keywords

  • femtosecond laser irradiation
  • nonlinear optical absorption
  • organometallic halide perovskites
  • photodegradation
  • thin perovskite films

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