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Efficient two-color luminescence of Er3+/Yb3+/Li +:ZrO2 nanocrystals

  • Harbin Institute of Technology
  • Harbin Engineering University
  • Beijing Institute of Technology
  • Soochow University

Research output: Contribution to journalArticlepeer-review

Abstract

We demonstrate the upconversion-photoluminescence spectra of Er 3+, Yb3+ and Li+ ions doped ZrO2 nanocrystals. By introducing Li+, emission intensities of single green and single red band increase by a factor of 1.93 and 1.65, respectively. Powder X-ray diffraction data and decreased slopes of the excitation power dependences on upconverted emission intensities give evidences that Li + ions can tailor the local structure of host lattice and improve energy transfer processes from Yb3+ to Er3+, respectively.

Original languageEnglish
Pages (from-to)1234-1238
Number of pages5
JournalOptical Materials
Volume33
Issue number8
DOIs
StatePublished - Jun 2011

Keywords

  • Enhancement
  • Nanocrystals
  • Upconversion

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