Electronic energy relaxation and luminescence decay dynamics of Eu3+ in Zn2SiO4:Eu3+ phosphors

Alan G. Joly, Wei Chen, Jun Zhang, Shaopeng Wang

Research output: Contribution to journalArticle

35 Scopus citations

Abstract

Electronic energy relaxation and decay dynamics of Eu3+ in Zn2SiO4:Eu3+ phosphors display evidence of intra-ion energy transfer from the 5D1 to the 5D0 manifold. The energy transfer timescale does not depend on Eu3+ concentration, or the addition of Mn2+ as a co-dopant and is estimated to be about 11 μs in Zn2SiO4. Evidence for intra-ion Eu3+ electronic energy transfer has also been observed in Eu-doped MgS as well as Eu3+ encapsulated in zeolite-Y. The energy transfer timescale in these other materials is shorter than in Zn2SiO4, most likely due to differences in Eu3+ surroundings or site symmetry.

Original languageEnglish (US)
Pages (from-to)491-496
Number of pages6
JournalJournal of Luminescence
Volume126
Issue number2
DOIs
StatePublished - Oct 1 2007
Externally publishedYes

Keywords

  • Energy transfer
  • Eu
  • Intra-state
  • Luminescence
  • Nanoparticles
  • Phosphors
  • Relaxation dynamics

ASJC Scopus subject areas

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

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