Photoluminescence properties of Ce3+ and Mn2+-activated Ba9Sc2Si6O24 phosphor for white light emitting diodes

doi:10.1088/1674-1056/22/7/077801

中国物理B ›› 2013, Vol. 22 ›› Issue (7): 77801-077801.doi: 10.1088/1674-1056/22/7/077801

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇下一篇

Photoluminescence properties of Ce³⁺ and Mn²⁺-activated Ba₉Sc₂Si₆O₂₄ phosphor for white light emitting diodes

边柳, 王婷, 宋振, 刘朝晖, 李嘉旭, 刘泉林

School of Materials Science & Engineering and State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

收稿日期:2013-01-26 修回日期:2013-03-04 出版日期:2013-06-01 发布日期:2013-06-01
基金资助:
Project supported by the National Natural Science Foundation of China (Grant No. 51272027) and the Ph. D. Program Foundation of Education Ministry of China (Grant No. 20100006110011).

Photoluminescence properties of Ce³⁺ and Mn²⁺-activated Ba₉Sc₂Si₆O₂₄ phosphor for white light emitting diodes

Bian Liu (边柳), Wang Ting (王婷), Song Zhen (宋振), Liu Zhao-Hui (刘朝晖), Li Jia-Xu (李嘉旭), Liu Quan-Lin (刘泉林)

School of Materials Science & Engineering and State Key Laboratory for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China

Received:2013-01-26 Revised:2013-03-04 Online:2013-06-01 Published:2013-06-01
Contact: Liu Quan-Lin E-mail:qlliu@ustb.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant No. 51272027) and the Ph. D. Program Foundation of Education Ministry of China (Grant No. 20100006110011).

摘要/Abstract

摘要： A single-phased silicate compound (Ba_1-xCe_x)₉₍Sc_1-yMn_y)₂Si₆O₂₄ was prepared by solid-state reaction at high temperature. From powder X-ray diffraction (XRD) analysis, the formation of Ba₉Sc₂Si₆O₂₄ with R3 space group was confirmed. In the photoluminescence spectra under ultraviolet (UV) ray excitation, the Ba₉Sc₂Si₆O₂₄:Ce³⁺, Mn²⁺ phosphor emits two distinctive color light bands: a blue one originating from Ce³⁺ and a red one caused by Mn²⁺. The energy transfer process from Ce³⁺ to Mn²⁺ was confirmed, the critical radius as well as the transfer efficiency was calculated, and the energy transfer mechanism was discussed. In addition, the decay-time testing indicates that the energy transfer efficiencies from Ce(1) to Mn²⁺ and Ce(2) to Mn²⁺ are different. The emission chromaticity of Ba₉Sc₂Si₆O₂₄:Ce³⁺, Mn²⁺ phosphor could be tuned from blue to red by altering the Ce³⁺/Mn²⁺ concentration ratio.

关键词: Ba₉Sc₂Si₆O₂₄, Ce³⁺, Mn²⁺ co-doped, energy transfer

Abstract: A single-phased silicate compound (Ba_1-xCe_x)₉₍Sc_1-yMn_y)₂Si₆O₂₄ was prepared by solid-state reaction at high temperature. From powder X-ray diffraction (XRD) analysis, the formation of Ba₉Sc₂Si₆O₂₄ with R3 space group was confirmed. In the photoluminescence spectra under ultraviolet (UV) ray excitation, the Ba₉Sc₂Si₆O₂₄:Ce³⁺, Mn²⁺ phosphor emits two distinctive color light bands: a blue one originating from Ce³⁺ and a red one caused by Mn²⁺. The energy transfer process from Ce³⁺ to Mn²⁺ was confirmed, the critical radius as well as the transfer efficiency was calculated, and the energy transfer mechanism was discussed. In addition, the decay-time testing indicates that the energy transfer efficiencies from Ce(1) to Mn²⁺ and Ce(2) to Mn²⁺ are different. The emission chromaticity of Ba₉Sc₂Si₆O₂₄:Ce³⁺, Mn²⁺ phosphor could be tuned from blue to red by altering the Ce³⁺/Mn²⁺ concentration ratio.

Key words: Ba₉Sc₂Si₆O₂₄, Ce³⁺, Mn²⁺ co-doped, energy transfer

中图分类号: (Photoluminescence, properties and materials)

78.55.-m

87.15.mq (Luminescence) 33.50.-j (Fluorescence and phosphorescence; radiationless transitions, quenching (intersystem crossing, internal conversion))

边柳, 王婷, 宋振, 刘朝晖, 李嘉旭, 刘泉林. Photoluminescence properties of Ce³⁺ and Mn²⁺-activated Ba₉Sc₂Si₆O₂₄ phosphor for white light emitting diodes[J]. 中国物理B, 2013, 22(7): 77801-077801.

Bian Liu (边柳), Wang Ting (王婷), Song Zhen (宋振), Liu Zhao-Hui (刘朝晖), Li Jia-Xu (李嘉旭), Liu Quan-Lin (刘泉林). Photoluminescence properties of Ce³⁺ and Mn²⁺-activated Ba₉Sc₂Si₆O₂₄ phosphor for white light emitting diodes[J]. Chin. Phys. B, 2013, 22(7): 77801-077801.

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Photoluminescence properties of Ce³⁺ and Mn²⁺-activated Ba₉Sc₂Si₆O₂₄ phosphor for white light emitting diodes

Photoluminescence properties of Ce³⁺ and Mn²⁺-activated Ba₉Sc₂Si₆O₂₄ phosphor for white light emitting diodes

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