Spectroscopy and Spectral Analysis, Volume. 31, Issue 11, 2978(2011)
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)2·2H2O, 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.
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HUANG Fang-ying, LUO Li, DAI Qiang-qin. Crystal Structure and Photoluminescence Studies of ZnO Nanocrystals Doped with Eu3+ Ions[J]. Spectroscopy and Spectral Analysis, 2011, 31(11): 2978
Received: Feb. 28, 2011
Accepted: --
Published Online: Dec. 22, 2011
The Author Email: Fang-ying HUANG (huangfangying211@126.com)