Optical properties of trivalent europium doped ZnO: Zn phosphor under indirect excitation of near-UV light

Li Chen, Jiahua Zhang, Xianmin Zhang, Feng Liu, Xiaojun Wang

Research output: Contribution to journalArticlepeer-review

42 Citations (Scopus)

Abstract

Eu3+, Li+-codoped ZnO:Zn phosphor with intense Eu3+ emissions upon indirect excitation of near-UV light has been synthesized under reducing condition. Steady-state and time-resolved photoluminescence and diffuse reflectance spectra are measured to investigate properties of the luminescence. The results suggest that there exists prominent energy transfer from ZnO host to Eu3+ ions. A series of energy levels as temporary storage of excitation energy play a crucial role on this energy transfer process. Two kinds of Eu sites in Eu3+, Li +-codoped ZnO:Zn are distinguished based on the emission and excitation spectra in comparison with pure Eu2O3.

Original languageEnglish
Pages (from-to)11795-11801
Number of pages7
JournalOptics Express
Volume16
Issue number16
DOIs
Publication statusPublished - 2008 Aug 4
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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