Ultraviolet glow of Lu3Ga5O12:Bi3+ phosphor in indoor lighting

Xue Li, Xiyu Zhao, Chengrui Wang, Feng Liu, Xiao jun Wang

Research output: Contribution to journalArticlepeer-review

13 Scopus citations

Abstract

An ultraviolet glow phenomenon of Lu3Ga5O12:Bi3+ phosphor is investigated in ambient lighting. In dark environment the phosphor exhibits ultraviolet persistent luminescence peaking at 313 nm, while in indoor ambient lighting the initial intensity of the ultraviolet emission is remarkably enhanced. Such an enhancement essentially originates from a photostimulation process upon stimulation by the polychromatic ambient light, revealing the role of ambient illumination in releasing the stored energy of the phosphor. The present study on Lu3Ga5O12:Bi3+ inspires us to revisit other ultraviolet phosphors, enabling more glow-in-the-ambient-lighting materials to be developed.

Original languageEnglish
Article number118932
JournalJournal of Luminescence
Volume248
DOIs
StatePublished - Aug 2022

Scopus Subject Areas

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • General Chemistry
  • Biochemistry
  • Condensed Matter Physics

Keywords

  • Ambient lighting
  • Bi-doped garnets
  • Thermoluminescence
  • Ultraviolet glow

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