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

*Korrespondierende/r Autor/in für diese Arbeit

Publikation: Beitrag in einer FachzeitschriftArtikel

Abstract

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.

Originalspracheenglisch
Aufsatznummer792
FachzeitschriftJournal of Nanoparticle Research
Jahrgang14
Ausgabenummer4
DOIs
PublikationsstatusVeröffentlicht - 2012
Extern publiziertJa

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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