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[1]宁航,田莲花*.Ce3+共掺杂BaZn1.06Al9.94O17: Tb3+荧光粉的发光性质及其能量传递机[J].延边大学学报(自然科学版),2020,46(04):321-325.
　NING Hang,TIAN Lianhua*.Luminescence properties and energy transfer mechanism of Ce3+ co -doped BaZn1.06Al9.94O17:Tb3+ phosphor[J].Journal of Yanbian University,2020,46(04):321-325.

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Ce³⁺共掺杂BaZn_1.06Al_9.94O₁₇: Tb³⁺荧光粉的发光性质及其能量传递机

《延边大学学报(自然科学版)》[ISSN:1004-4353/CN:22-1191/N] 卷: 第46卷期数: 2020年04期页码: 321-325 栏目: 基础科学研究出版日期: 2020-12-20

Title:: Luminescence properties and energy transfer mechanism of Ce³⁺ co -doped BaZn_1.06Al_9.94O₁₇:Tb³⁺ phosphor

文章编号:: 1004-4353(2020)04-0321-05

作者:: 宁航; 田莲花^*; ( 延边大学理学院, 吉林延吉 133002 )

Author(s):: NING Hang; TIAN Lianhua^*; ( College of Science, Yanbian University, Yanji 133002, China )

关键词:: 高温固相法; 荧光粉; Ce³⁺离子; 发光性能

Keywords:: high temperature solid state reaction; phosphor; energy transfer; luminescence properties

分类号:: O482.31

文献标志码:: A

摘要:: 采用高温固相法合成了BaZn_1.06Al_9.94O₁₇:Tb³⁺,Ce³⁺荧光粉,并对其发光性能和能量传递机理进行了研究.研究结果表明:由于Tb³⁺离子的4f⁸ → 4f⁷5d¹跃迁,使得BaZn_1.06Al_9.94O₁₇:Tb³⁺的激发带中心位于230 nm处.共掺杂Ce³⁺离子后,BaZn_1.06Al_9.94O₁₇:Tb³⁺的激发光谱出现了明显的红移,在240～320 nm范围内的宽带激发归因于Ce³⁺离子的4f → 5d跃迁.由于Ce³⁺与Tb³⁺离子发生了能量传递,使得BaZn_1.06Al_9.94O₁₇:Tb³⁺,Ce³⁺中Tb³⁺离子的⁵D₄ → ⁷F_J(J=6、5、4和3)发射峰的发光强度比未掺杂Ce³⁺离子时提高了约15倍.因此,制备的BaZn_1.06Al_9.94O₁₇:Tb³⁺,Ce³⁺荧光粉可望在照明、显示器件等应用中具有良好的应用价值.

Abstract:: BaZn_1.06Al_9.94O₁₇:Tb³⁺, Ce³⁺phosphor was synthesized by high temperature solid state reaction, and the luminescent properties and energy transfer mechanism from Ce³⁺ to Tb³⁺ were investigated in this paper. The research results show that the absorption band of BaZn_1.06Al_9.94O₁₇:Tb³⁺ was centered at 230 nm due to the 4f⁸ → 4f⁷5d¹ transition of Tb³⁺ ions. With co -doped Ce³⁺ ions into BaZn_1.06Al_9.94O₁₇:Tb³⁺ phosphor, the excitation band showed obviously red shift. The wide -band absorption in the range of 240-320 nm was attributed to the 4f → 5d transition of Ce³⁺ ions. Compared with Ce³⁺ ion free BaZn_1.06Al_9.94O₁₇:Tb³⁺, the emission intensity was increased about 15 times due to the energy transfer from Ce³⁺ to Tb³⁺. So BaZn_1.06Al_9.94O₁₇:Tb³⁺, Ce³⁺ could be a valuable phosphor for lamp or display applications.

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备注/Memo

收稿日期: 2020-09-15 *通信作者: 田莲花(1972—),女,博士,教授,研究方向为发光学.
基金项目: 国家自然科学基金资助项目(51362028); 吉林省科技发展计划项目(20130101035JC); 吉林省教育厅“十三五”科学技术项目(JJKH20180893KJ)

更新日期/Last Update: 2020-12-20