title: [Crystal structure and photoluminescence studies of ZnO nanocrystals doped with Eu3+ ions].
abstract: 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.
authors.affiliation: School of Physics & Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China. huangfangying211@126.com
authors.forename: Fang-Ying
authors.initials: FY
authors.lastname: Huang
authors.forename: Li
authors.initials: L
authors.lastname: Luo
authors.forename: Qiang-Qin
authors.initials: QQ
authors.lastname: Dai