Synthesis and luminescence properties of YF 3=Ce 3+/Tb 3+ nanocrystals

Guofeng Wang, Weiping Qin, Daisheng Zhang, Guodong Wei, Kezhi Zheng, Lili Wang, Fuheng Ding

Research output: Contribution to journalArticlepeer-review

Abstract

YF 3:Ce 3+, YF 3:Tb 3+, and YF 3:Ce 3+/Tb 3+ nanocrystals were synthesized by an ethylenediaminetetraacetic acid (EDTA)-assisted hydrothermal method and characterized by X-ray diffraction and scanning electron microscope. In the excitation spectra, there is one broad excitation band at 285 nm for YF 3:Ce 3+ and 255 nm for YF 3:Tb 3+, which are related to the f-d excitations of the Ce 3+ and Tb 3+ in the host, respectively. In the emission spectra of YF 3:Ce 3+/Tb 3+ nanocrystals under different excitation wavelengths (285 and 255 nm), both spectra exhibit the emissions of Ce 3+ and Tb 3+, indicating that energy transfer could take place not only from Ce 3+ to Tb 3+ but also from Tb 3+ to Ce 3+ ions.

Original languageEnglish
Pages (from-to)1939-1942
Number of pages4
JournalJournal of Nanoscience and Nanotechnology
Volume10
Issue number3
DOIs
StatePublished - Mar 2010
Externally publishedYes

Keywords

  • Energy transfer
  • Luminescence
  • Nanocrystals
  • Rare earth

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