硅酸盐学报

引入Ce3+作为敏化离子增强Ca9Al(PO4)7:Sm3+的发光强度

作者：刘海燕1 李美凡2 王智朋2 尤美2 曹冬雪2 周玲玉2 王卓光2 王聪2 王志军1 李盼来1

单位：1. 河北大学网络空间安全与计算机学院河北保定 071002 2. 河北大学物理科学与技术学院河北保定 071002

关键词：荧光粉能量传递钐铈共掺磷酸铝钙高温固相法

分类号：O482.31

出版年,卷(期):页码：2018,46(10):0-0

DOI：10.14062/j.issn.0454-5648.2018.10.16

摘要：

采用高温固相法制备了Ce3+、Sm3+和Ce3+/Sm3+掺杂的Ca9Al(PO4)7 荧光粉。以327 nm 紫外光作为激发源时，

Ca9Al(PO4)7:Ce3+在386 nm 处出现宽发射峰，其发射对应于Ce3+的4f 05d1→4f 1 跃迁的蓝色光，主峰位于386 nm；在407 nm

近紫外光激发下，Ca9Al(PO4)7:Sm3+发射红色光。为了增强Ca9Al(PO4)7:Sm3+的发射强度，将Ce3+引入到材料中，通过Ce3+

到Sm3+的能量传递，有效地增强了材料的发射强度，为开展白光LEDs 用红色荧光粉提供了参考。

In order to enhance the luminescence intensity of Sm3+ in Ca9Al(PO4)7, a series of Ce3+, Sm3+ and Ce3+/Sm3+ doped

Ca9Al(PO4)7 phosphors were synthesized by a high-temperature solid-state method. When the 327-nm light is used as an excitation

source, Ca9Al(PO4)7:Ce3+ can show a broad band peaking at 386 nm, which corresponds to the 4f 05d1→4f 1 transition of Ce3+ ions.

Ca9Al(PO4)7:Sm3+ can be efficiently excited by 407 nm near-ultraviolet, thus emitting red light. The luminescence intensity of

Ca9Al(PO4)7:Sm3+ can be enhanced when Ce3+ ions are introduced into Ca9Al(PO4)7:Sm3+ due to the energy transfer from Ce3+ to

Sm3+ ions.

基金项目：

作者简介：

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