Green emitting long lasting phosphorescence (LLP) properties of Mg 2SnO4:Mn2+ phosphor

Bingfu Lei, Bin Li, Xiaojun Wang, Wenlian Li

Research output: Contribution to journalArticlepeer-review

91 Scopus citations

Abstract

A novel long-lasting phosphorescence phosphor, Mn2+-activated Mg2SnO4, has been synthesized and its optical properties have been investigated. The Mg2SnO4:Mn2+ emits green light with high luminance, upon UV irradiation, centered at 499 nm from the spin forbidden transitions of the d-electrons in Mn2+ ions. The CIE chromaticity coordinates of the Mg2SnO4:Mn 2+ phosphor are x=0.0875 and y=0.6083 under 254 nm UV excitation. The phosphorescence can be observed by the naked eyes (0.32 mcd/m2) in the dark clearly for over 5 h after the 5 min UV irradiation. Thermoluminescence has been studied and the mechanism of the long-lasting phosphorescence has been discussed.

Original languageEnglish
Pages (from-to)173-178
Number of pages6
JournalJournal of Luminescence
Volume118
Issue number2
DOIs
StatePublished - Jun 2006

Scopus Subject Areas

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

Keywords

  • Afterglow
  • Long-lasting phosphor
  • MgSnO:Mn
  • Thermoluminescence

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