PHOTOLUMINESCENCE OF ZnO:Tb NANOPARTICLES

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Abstract
Terbium-doped zinc oxide nanoparticles have been prepared by hydrolyzing zinc acetate and terbium acetate. Nanoparticle-matrix-facilitated photoluminescence which is related to Tb3+ ions has been observed for ZnO:Tb nanoparticles. The dependence of emission intensity on doping concentration of Tb3+ ions has been investigated. An energy transfer from excited states of ZnO hosts to dopants is disclosed by the fact that the emission intensity of Tb3+ centers increases with increasing Tb content at the expense of emission from defect states in ZnO matrix.

Keywords:
photoluminescence /

doping /

nanocrystals
Authors and contacts
LIU SHU-MAN²,

LIU FENG-QI²,

ZHANG ZHI-HUA¹,

GUO HAI-QING¹,

WANG ZHAN-GUO²

(1)北京大学化学与分子工程学院，稀土材料化学与应用国家重点实验室，北京 100871; (2)中国科学院半导体研究所半导体材料科学实验室，北京 100083
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