Optical properties of Ni2+ in ZrO2 nanocrystals

被引：15
|
作者：
Wang, SF [1 ]
Gu, F [1 ]
Lü, MK [1 ]
Zou, WG [1 ]
Liu, SW [1 ]
Zhou, GJ [1 ]
Xu, D [1 ]
Yuan, DR [1 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
OPTICAL MATERIALS | 2004年 / 27卷 / 02期
基金：
中国国家自然科学基金;
关键词：
coprecipitation; photoluminescence; nanocrystal;
D O I：
10.1016/j.optmat.2004.04.003
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ni2+ doped ZrO2 nanocrystals have been prepared by a urea-containing coprecipitation method. The photoluminescence of the doped samples was investigated in detail. Upon excitation at 483 nm, a red emission band at 612 nm was observed originating from the T-1(2) (D-1)-T-3(2) (F-3) transition of Ni2+. Effects of both heat-treated temperature and doping concentration on the luminescent properties were also studied. The results reveal that a concentration quenching of the luminescence occurs as the molar ratio of Ni2+ exceeds the optimum value (1%). However, no thermal quenching was observed probably due to the improved crystallinity of the host lattice resulting from the increase of the calcining temperature. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码：269 / 272
页数：4
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