Analysis of surface effect on luminescent properties of Eu3+ in YVO4 nanocrystals

被引：15
|
作者：
Peng, Hongshang [1 ]
Huang, Shihua
Sun, Lingdong
Yan, Chunhua
机构：
[1] Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
[2] Peking Univ, State Key Lab Rare Earth Mat Chem & Applicat, Beijing 100871, Peoples R China
来源：
PHYSICS LETTERS A | 2007年 / 367卷 / 03期
基金：
中国国家自然科学基金;
关键词：
surface sate; nanocrystal; electrostatic point charge model; luminescence;
D O I：
10.1016/j.physleta.2007.03.030
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
this Letter, F-7(2) crystal field (CF) levels of surface Eu3+ in YVO4 nanocrystals are calculated employing a refined electrostatic point charge model. where surface states are simulated by point charges. Based on the theoretical F-7(2) CF levels, emission spectra Of YVO4: Eu3+ nanocrystals are assianed to Eu3+ under different local environments. and relaxation of selection rules by surface effect is discussed. (c) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：211 / 214
页数：4
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