Study on Structure and Luminescence properties of YVO4:Eu3+ nanoparticles
YVO4:Eu3+ nanoparticles were prepared by sol-gel method. The structure, morphology and luminescence properties of YVO4:Eu3+ nanoparticles were studied by XRD，SEM and luminescence spectrum. The results of XRD and SEM indicated that all of the samples were YVO4 tetragonal phase, the particle sizes of the samples were distributed in the range of 28-35 nm. The size and the diffraction intensities of YVO4:Eu3+ nanoparticles were related to synthesis temperatures. The results of excitation spectra and emission spectra showed that the intensities of emission peaks coming from 5D0-7FJ and excitation bands increased with annealing temperature increased. The broad excitation bands belonged to change transfer band of Eu-O and V-O. The Eu3+ ions could produce emission due to be effect excited to 5DJ to emit by Eu3+ and VO4 3- energy transfer.
Sol-gel method YVO4:Eu3+ nanoparticles Excitation spectra Emission spectra Energy transfer
李艳红 张永明 张扬 于洪明 洪广言
沈阳化工学院 材料科学与工程学院,沈阳 110142 中国科学院稀土化学与物理开放实验室,长春 130022
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）