Energy transfer upconversion in Er3+-Tm3+ codoped sodium silicate glass

Vinod Kumar, Anurag Pandey, O. M. Ntwaeaborwa, H. C. Swart

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)


Er3+/Tm3+ doped and codoped Na2O-SiO2-ZnO (NSZO) glasses were prepared by the conventional melt-quenching method. The amorphous nature of the prepared glasses was confirmed by the X-ray diffraction analysis. The optical absorption spectrum displayed several peaks, which correspond to Er3+ and Tm3+ dopant ions embedded into the NSZO glass. Both dopants experienced upconversion emission under 980 nm excitation. Efficient energy transfer from Er3+ to Tm3+ was observed in the co-doped samples to enhance the near infrared emission of the Tm3+ ions.

Original languageEnglish
Pages (from-to)330-332
Number of pages3
JournalPhysica B: Condensed Matter
Publication statusPublished - 15 Apr 2018
Externally publishedYes


  • Energy transfer
  • Er-Tm
  • Sodium silicate glass
  • Upconversion

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


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