Effect of co-doping on the photoluminescence behavior of Zn2SiO4:Mn phosphors

被引：33
作者：
Sohn, KS [1 ]
Cho, BH [1 ]
Chang, HJ [1 ]
Park, HD [1 ]
机构：
[1] Korea Res Inst Chem Technol, Adv Mat Div, Taejon 305600, South Korea
来源：
JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 1999年 / 146卷 / 06期
关键词：
D O I：
10.1149/1.1391939
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
The main objective of this investigation is to improve the photoluminescent performance of existing Zn2SiO4:Mn phosphors by adding a new co-dopant. The candidate co-dopants adopted in the present investigation are confined to substituents for the Zn site. In this context, the co-doping effect of Mg and/or Cr upon emission intensity and decay time was studied in the present investigation. The co-dopants incorporated into the Zn2SiO4:Mn phosphors are believed to alter the internal energy slate so that the change in emission intensity and decay time could be expected. Both Mg and Cr have a favorable influence on photoluminescent properties, in particular, Mg enhances the intensity of manganese green emission and Cr shortens the decay time. The enhancement in emission intensity of Zn2SiO4:Mn, Mg phosphors was interpreted by taking into account the result from the DV-Xa embedded cluster calculation. On the other hand, the energy transfer between Mn and Cr ions was found to be responsible for the shortening of decay time in Zn2SiO4:Mn,Cr phosphors. (C) 1999 The Electrochemical Society. S0013-4651(98)10-084-8. All rights reserved.
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页码：2353 / 2356
页数：4
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