Upconversion luminescence of Tm3+/Yb3+codoped oxyfluoride glass ceramics containing Ba2YbF7nanocrystals

Gongxun Bai, Lili Tao, Yonggang Wang, Yuen Hong Tsang

Research output: Journal article publicationConference articleAcademic researchpeer-review

5 Citations (Scopus)

Abstract

Tm3+/Yb3+codoped transparent oxyfluoride borosilicate glass ceramics containing fluoride nanocrystals Ba2YbF7was fabricated and the upconversion luminescence of this novel glass ceramics was investigated under 975 nm excitation. The successful formation of fluoride nanocrystals Ba2YbF7in glass matrix was confirmed by the results of X-ray diffraction (XRD) and transmission electron microscopy (TEM). Compared with the precursor glass, great enhancement of upconversion luminescence was measured in the Tm3+/Yb3+codoped transparent glass ceramics, which was due to the lower phonon energy obtained in the formed nanocrystals, the scattering by the nanocrystals and efficient Yb3+-Tm3+inter-ionic interactions. Therefore, the material studied in this report can find potential application in upconversion light material.
Original languageEnglish
Pages (from-to)31-36
Number of pages6
JournalIntegrated Ferroelectrics
Volume142
Issue number1
DOIs
Publication statusPublished - 16 Jul 2013
EventInternational Symposium on Integrated Functionalities, ISIF 2012 - Hong Kong, Hong Kong
Duration: 18 Jun 201221 Jun 2012

Keywords

  • Glass ceramics
  • Nanocrystals
  • Rare earth ions
  • Upconversion luminescence

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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