Energy transfer to Gd3+ from the self-trapped exciton in ScPO4:Gd3+ — In the case of persistent luminescence

Chengrui Wang, Feng Liu, Xiao jun Wang

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We report a persistent luminescence phenomenon of ScPO4:Gd3+ phosphor, which exhibits long-lasting ultraviolet emission peaking at 313 nm after the end of X-ray irradiation. Unlike the steady-state luminescence of the phosphor excited by ionizing irradiation, no quantum-cutting emission is involved in the persistent luminescence. We ascribe the presence of persistent luminescence, as well as the absence of quantum cutting, to the effect of self-trapped exciton on the electron and energy transfers. This work provides some insights to the understanding of Gd3+-activated ultraviolet persistent luminescence.

Original languageEnglish
Article number119511
JournalJournal of Luminescence
Volume254
DOIs
StatePublished - Feb 2023

Keywords

  • Gd
  • Quantum cutting
  • Self-trapped exciton
  • Ultraviolet persistent luminescence

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