Synthesis and Luminescence Properties of Flower-Like Sr2MgSi2O7 : Eu2+, Dy3+ Phosphor via Hydrothermal-Homogeneous Coprecipitation Route
Synthesis and Luminescence Properties of Flower-Like Sr2MgSi2O7 : Eu2+, Dy3+ Phosphor via Hydrothermal-Homogeneous Coprecipitation Route
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水热均相共沉淀法合成花状Sr2MgSi2O7 : Eu2 , Dy3荧光粉及其发光性能
DOI：
10.1149/2.008306ssl
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发表时间：
2013-01-01
影响因子：
--
通讯作者：
Liu, Xiaotang
中科院分区：
文献类型：
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作者：
Zheng, Mingtao;Chen, Xiaobo;Liu, Xiaotang
采用水热-均匀共沉淀法制备了高亮度、长余辉的分散花状Sr2MgSi2O7:Eu2+,Dy3+荧光粉。所制备的荧光粉在399 nm的激发下表现出主要在可见光的宽激发带和主峰在467 nm的宽发射带。特别是与固相反应法制备的样品相比，花状Sr2MgSi2O7：Eu2+、Dy3+荧光粉具有更好的余辉性能，这是由于均质花状微晶具有更大的表面积，吸收和储存了更多的光能。讨论了Sr2MgSi2O7：Eu2+、Dy3+的长余辉磷光机理。 (C) 2013 年电化学协会。 [DOI：10.1149/2.008306ssl] 保留所有权利。
The dispersed flower-like Sr2MgSi2O7 : Eu2+, Dy3+ phosphor with high brightness and long afterglow was prepared via hydrothermal-homogeneous coprecipitation route. The as-prepared phosphor exhibited a broad excitation band chiefly in visible and a broad emission band of main peak at 467 nm under the excitation of 399 nm. Especially, compared with sample prepared by solid-state reaction method, the flower-like Sr2MgSi2O7 : Eu2+, Dy3+ phosphor had better afterglow performance, which was due to the bigger surface area of the homogeneous flower-like crystallite absorbing and storing more light energy. The long-lasting phosphorescence mechanism of Sr2MgSi2O7 : Eu2+, Dy3+ was discussed. (C) 2013 The Electrochemical Society. [DOI: 10.1149/2.008306ssl] All rights reserved.