Enhanced ∼ 2 μm and upconversion emission from Ho-Yb codoped oxyfluoride glass ceramics

Gongxun Bai, Lili Tao, Kefeng Li, Lili Hu, Yuen Hong Tsang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

38 Citations (Scopus)

Abstract

Enhanced 2 μm and upconversion emission from Ho3+-Yb3+codoped oxyfluoride silicate glass ceramics containing nanocrystals Ba2YbF7was demonstrated. Ho3+-Yb3+codoped oxyfluoride silicate glass and glass ceramics containing nanocrystals Ba2YbF7were fabricated. Fluoride nanocrystals Ba2YbF7were successfully precipitated in glass matrix, which was confirmed by the X-ray diffraction (XRD), and transmission electron microscopy (TEM) with energy dispersive X-ray (EDX) spectrometer results. 2 μm and upconversion emissions were obtained from these glass examples under 980 nm excitation. Compared with the precursor glass, enhanced 2 μm and upconversion luminescence was measured in the glass ceramics, which were due to scattering by the formed nanocrystals, lower phonon energy obtained in the nanocrystals and efficient Yb3+-Ho3+interionic interactions. Therefore, the material investigated in this study could find potential application in 2 μm laser gain media or upconversion light material.
Original languageEnglish
Pages (from-to)13-16
Number of pages4
JournalJournal of Non-Crystalline Solids
Volume361
Issue number1
DOIs
Publication statusPublished - 1 Feb 2013

Keywords

  • 2 μm
  • Glass ceramics
  • Ho 3+
  • Nanocrystals
  • Upconversion luminescence

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Materials Chemistry

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