Preparation and characterization of optical spectroscopy of Lu 2O3:Eu nanocrystals

Mei Xu, Weiping Zhang, Ning Dong, Yin Jiang, Ye Tao, Min Yin*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

48 Citations (Scopus)

Abstract

Nanoscale Lu2O3:Eu powders were prepared by solution combustion synthesis. X-ray diffraction (XRD), high-resolution electronic microscope (HREM), Fourier transform infrared spectroscopy (FT-IR), excitation and emission spectra, as well as fluorescent decay curves were measured to characterize the structure and luminescent properties of the samples. The results show that the compound of composition Lu2O3 crystallizes in pure cubic structure. By changing the ratio of glycine to nitrate in the combustion process, the particle size varies from 40 nm to less than 5 nm. The emission and excitation spectra strongly depend on the particle size of the samples. Novel emission band, red-shift of charge transfer band (CTB) and shortening of lifetime were observed in nanoscale samples.

Original languageEnglish
Pages (from-to)477-482
Number of pages6
JournalJournal of Solid State Chemistry
Volume178
Issue number2 SPEC. ISS.
DOIs
Publication statusPublished - Feb 2005
Externally publishedYes

Keywords

  • Amorphous phase
  • Combustion synthesis
  • Nanocrystalline LuO:Eu
  • Photoluminescence

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