Synthesis and photoluminescence characteristics of Dy3+-doped ZnAl2O4 nanocrystals via a combustion process

被引:90
作者
Wang, SF [1 ]
Gu, F [1 ]
Lü, MK [1 ]
Cheng, XF [1 ]
Zou, WG [1 ]
Zhou, GJ [1 ]
Wang, SM [1 ]
Zhou, YY [1 ]
机构
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
关键词
nanostructures; combustion synthesis; luminescence;
D O I
10.1016/j.jallcom.2004.07.088
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Ultrafine ZnAl2O4:Dy3+ nanocrystals were prepared via a combustion process using metal nitrates as precursors. Dy3+ -doped ZnAl2O4 nanocrystals with good crystallinity were obtained at a relatively low temperature (350 degrees C). The transmission electron micrograph (TEM) shows that the obtained products have uniform size distribution in the range of 13-15 nm. The absorption spectrum of the pure ZnAl2O4 reveals that the band gap is about 3.7 eV. The photoluminescence (PL) properties of doped samples as a function of the furnace temperature have been investigated. (c) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:255 / 258
页数:4
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