Optical investigation of Tb 3+-doped Y 2O 3 nanocrystals prepared by Pechini-type sol-gel process

M. Back*, A. Massari, M. Boffelli, F. Gonella, P. Riello, D. Cristofori, R. Riccò, F. Enrichi

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


We report an optical study of Tb 3+-doped Y 2O 3 nanocrystals synthesized by Pechini-type sol-gel method. The particles are investigated in terms of size and morphology by means of X-ray diffraction and transmission electron microscopy analysis. It is shown how the simple Pechini method allows for the growth of monocrystalline nanoparticles with a volume- weighted average size of about 30 nm. The optical properties of Tb 3+ in the host lattice are studied in terms of PL, PLE, and lifetimes. Moreover, a correlation between the type of decay curves, the emission and excitation bands' shapes, and the site location of the emitting Tb 3+ in the host material Y 2O 3 is proposed.

Original languageEnglish
Article number792
JournalJournal of Nanoparticle Research
Issue number4
Publication statusPublished - 2012
Externally publishedYes


  • Lifetime
  • Luminescence
  • Nanoparticle
  • Pechini
  • Sol-gel synthesis process
  • Terbium
  • Yttria

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Modelling and Simulation
  • Chemistry(all)
  • Materials Science(all)
  • Bioengineering

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