Effect of Eu3 + codoping on upconversion luminescence in Y2O3:Er3 +, Yb3 + nanocrystals

Y. Q. Sheng, J. Liu, L. L. Xu, D. Zhai, Z. G. Zhang, Wenwu Cao

Research output: Contribution to journalArticle

13 Scopus citations

Abstract

The influence of Eu3+ on the upconversion (UC) fluorescence of Er3+ in Y 2O3:Er3+, Y b3+ nanocrystals was investigated. Room-temperature UC spectra show that the intensity ratio of red to green lights was increased from 8.6 to 19.3 with 1.0 mol% Eu3+ doping. Additionally, with the increase of Eu3+ ion concentration, the n values for both green and red UC emissions in Y 2O3:Er3+, Y b3+ nanocrystals become larger. Our analysis shows that the energy transfer between Eu3+ and Er3+ ions is the main cause for the enhancement of 2H11/2, 4 S3 / 24 F9 / 2 and 4 I11 / 24 I13 / 2 transitions of Er3+ ions.

Original languageEnglish (US)
Pages (from-to)1048-1051
Number of pages4
JournalSolid State Communications
Volume150
Issue number23-24
DOIs
StatePublished - Jun 1 2010

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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