Microwave-promoted pure host phase for red emission CaS：Eu2+ phosphor from single CaSO4 precursor and the photoluminescence property

doi:10.1088/1674-1056/23/8/087808

›› 2014, Vol. 23 ›› Issue (8): 87808-087808.doi: 10.1088/1674-1056/23/8/087808

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

Microwave-promoted pure host phase for red emission CaS：Eu²⁺ phosphor from single CaSO₄ precursor and the photoluminescence property

马健^a, 陆启飞^{a b}, 王延泽^a, 卢志娟^a, 孙亮^a, 董晓菲^a, 王达健^{a b c}

a Institute of Materials Physics, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;
b Tianjin Key Laboratory for Photoelectronic Materials and Devices, Tianjin 300384, China;
c Key Laboratory of Display Materials and Photoelectronic Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China

收稿日期:2013-11-23 修回日期:2014-02-22 出版日期:2014-08-15 发布日期:2014-08-15
基金资助:
Project supported by the National Natural Science Foundation of China (Grant Nos. 21076161, 50802062, and 50872091).

Microwave-promoted pure host phase for red emission CaS：Eu²⁺ phosphor from single CaSO₄ precursor and the photoluminescence property

Ma Jian (马健)^a, Lu Qi-Fei (陆启飞)^{a b}, Wang Yan-Ze (王延泽)^a, Lu Zhi-Juan (卢志娟)^a, Sun Liang (孙亮)^a, Dong Xiao-Fei (董晓菲)^a, Wang Da-Jian (王达健)^{a b c}

a Institute of Materials Physics, School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;
b Tianjin Key Laboratory for Photoelectronic Materials and Devices, Tianjin 300384, China;
c Key Laboratory of Display Materials and Photoelectronic Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China

Received:2013-11-23 Revised:2014-02-22 Online:2014-08-15 Published:2014-08-15
Contact: Lu Qi-Fei, Wang Da-Jian E-mail:qifei_lu@163.com;djwang@tjut.edu.cn
Supported by:
Project supported by the National Natural Science Foundation of China (Grant Nos. 21076161, 50802062, and 50872091).

摘要/Abstract

摘要： We report a novel approach to obtaining a classical blue-green excitable CaS:Eu²⁺ phosphor with desired red emission by microwave (MW) firing procedure in the absence of adding elemental sulphur. The disturbing effect of MW electromagnetic field on decomposition of CaSO₄ into CaS activated by europium is distinctly observed to give pure host phase without adding any elemental sulphur and carbon. The host phase evolution is observed to be highly dependent on the variation of applied MW power from X-ray diffraction (XRD) patterns and the corresponding photoluminescence (PL), and a maximum PL intensity at 1100 W of MW power is acquired for the obtained purer host phase. The non-thermal and non-equilibrium effects by MW are revealed to correlate with the interaction between polar structure of the host and applied electromagnetic field. The results demonstrate an optional procedure to prepare this red-emitting phosphor in an effective, environment-friendly and scalable approach for phosphor production in the application of bio-illumination for plant cultivation and artificial photosynthesis.

关键词: red emission, calcium sulfide, microwave energy

Abstract: We report a novel approach to obtaining a classical blue-green excitable CaS:Eu²⁺ phosphor with desired red emission by microwave (MW) firing procedure in the absence of adding elemental sulphur. The disturbing effect of MW electromagnetic field on decomposition of CaSO₄ into CaS activated by europium is distinctly observed to give pure host phase without adding any elemental sulphur and carbon. The host phase evolution is observed to be highly dependent on the variation of applied MW power from X-ray diffraction (XRD) patterns and the corresponding photoluminescence (PL), and a maximum PL intensity at 1100 W of MW power is acquired for the obtained purer host phase. The non-thermal and non-equilibrium effects by MW are revealed to correlate with the interaction between polar structure of the host and applied electromagnetic field. The results demonstrate an optional procedure to prepare this red-emitting phosphor in an effective, environment-friendly and scalable approach for phosphor production in the application of bio-illumination for plant cultivation and artificial photosynthesis.

Key words: red emission, calcium sulfide, microwave energy

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

78.55.-m

马健, 陆启飞, 王延泽, 卢志娟, 孙亮, 董晓菲, 王达健. Microwave-promoted pure host phase for red emission CaS：Eu²⁺ phosphor from single CaSO₄ precursor and the photoluminescence property[J]. , 2014, 23(8): 87808-087808.

Ma Jian (马健), Lu Qi-Fei (陆启飞), Wang Yan-Ze (王延泽), Lu Zhi-Juan (卢志娟), Sun Liang (孙亮), Dong Xiao-Fei (董晓菲), Wang Da-Jian (王达健). Microwave-promoted pure host phase for red emission CaS：Eu²⁺ phosphor from single CaSO₄ precursor and the photoluminescence property[J]. Chin. Phys. B, 2014, 23(8): 87808-087808.

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Microwave-promoted pure host phase for red emission CaS：Eu²⁺ phosphor from single CaSO₄ precursor and the photoluminescence property

Microwave-promoted pure host phase for red emission CaS：Eu²⁺ phosphor from single CaSO₄ precursor and the photoluminescence property

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