Energy transfer mechanism in Eu3+ doped tin oxide nanophosphors for red solid state lighting

Vinod Kumar, S. P. Tiwari, Habtamu Fekadu Etefa, Leta Tesfaye Jule, O. M. Ntwaeaborwa, H. C. Swart

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A europium doped tin oxide (SnO2:Eu3+) nanophosphor is prepared by using of solution-combustion process with a variation in the doping amount of Eu3+. The results recorded by X-ray diffraction are established that SnO2: Eu3+ has a polycrystalline tetragonal structure without phase alteration for each concentration of Eu3+. The undoped SnO2 nanoparticles showed only defects related emission while emission due to the f→f transitions of Eu3+ ion is observed upon doping. The optimized photoluminescent intensity was observed for 3 mol% Eu3+. The life-time measurement of Eu3+ -doped SnO2 associated with major emission band located at 612 nm was monitored as 0.3 ms for the 3 mol% of Eu concentration. The present results reveal that Eu3+ -doped SnO2 nanoparticles may be used as a source of red light phosphor and this may be utilized for solid white light emitting application.

Original languageEnglish
Article number119085
JournalJournal of Luminescence
Publication statusPublished - Oct 2022
Externally publishedYes


  • Defects
  • Energy transfer
  • Life time
  • Red emission
  • SnO
  • XPS

ASJC Scopus subject areas

  • Biophysics
  • Atomic and Molecular Physics, and Optics
  • General Chemistry
  • Biochemistry
  • Condensed Matter Physics


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