Crystal structure and photoluminescence studies of ZnO nanocrystals doped with Eu3+ ions

The ZnO: Eu3+ crystal was prepared via coprecipitation with the starting materials Zn(OOCCH3)2 x 2H2O, Eu2O3 and NaOH. The X-ray diffraction patterns show that the samples are hexagonal wurtzite structure, No diffraction peaks from europium oxides are detectable. Comparing the ZnO and ZnO : Eu3+ Ram...

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Published inGuang pu xue yu guang pu fen xi Vol. 31; no. 11; p. 2978
Main Authors Huang, Fang-Ying, Luo, Li, Dai, Qiang-Qin
Format Journal Article
LanguageChinese
Published China 01.11.2011
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Summary:The ZnO: Eu3+ crystal was prepared via coprecipitation with the starting materials Zn(OOCCH3)2 x 2H2O, Eu2O3 and NaOH. The X-ray diffraction patterns show that the samples are hexagonal wurtzite structure, No diffraction peaks from europium oxides are detectable. Comparing the ZnO and ZnO : Eu3+ Raman spectra, the new local vibrational modes were observed in ZnO : Eu3+. These phenomena show that Eu3+ ions have entered the lattice by doping. The SEM analysis exhibits that ZnO nanoparticles prepared by coprecipitation become smaller with Eu3+ doping. The excitation and emission spectra of ZnO : Eu3+ sample present a efficient energy transfer process between ZnO and Eu3+ ions.
ISSN:1000-0593
DOI:10.3964/j.issn.1000-0593(2011)11-2978-03