For the first time the temperature dependence of the photoluminescence of the semiconductor CsPbBr 3 perovskite nanocrystals with sizes of 6.0–9.0 nm in fluorophosphate glass were investigated in the temperature range from 300 K to 423 K. It was shown that temperature dependence of the photoluminescence intensity and the band gap shift coefficient change at 350 K corresponding to the isostructural phase transition. The photoluminescence intensity decreased radically above this temperature. The temperature energy gap coefficients of the CsPbBr 3 nanocrystals depending on the size and temperature range were found.

Original languageEnglish
Article number119541
JournalJournal of Luminescence
Volume255
Early online date28 Nov 2022
DOIs
StatePublished - Mar 2023

    Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Chemistry(all)
  • Biophysics
  • Biochemistry

    Research areas

  • Band gap shift, CsPbBr perovskites, Fluorophosphate glass, Nanocrystals, Photoluminescence, Quantum dot, CsPbBr3 perovskites

ID: 100346151