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Effect of chloride introduction on the optical properties in Eu3+-doped fluorozirconate glasses |
Han Jin(金含), Zhao-Jun Mo(莫兆军), Xiao-Song Zhang(张晓松), Lin-Lin Yuan(苑琳琳), Ming Yan(晏明), Lan Li(李岚) |
Institute of Material Physics, Key Laboratory for Optoelectronic Materials and Devices of Tianjin, Key Laboratory of Display Materials and Photoelectric Devices of Ministry of Education, Tianjin University of Technology, Tianjin 300384, China |
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Abstract Fluorozirconate glass containing Eu3+ ions and chloride ions are prepared by a meltquenching method. The luminescence behavior of Eu3+ affected by Cl ions is investigated. With increasing Cl ion concentration, the luminous intensity of Eu3+ is significantly enhanced and the quantum efficiency of fluorozirconate glass is improved. Meanwhile, the intensity parameter Ω2 increases according to the Judd-Ofelt calculation, which indicates the decrease of local symmetry. The average lifetime of Eu3+ increases by introducing the Cl ions. Moreover, we find two kinds of sites for Eu3+ ions in a glass network by analyzing the fluorescence decay. The distribution of Eu3+ ions changes with increasing Cl ion concentration. In addition, the excessive Cl ions lead to the separation of the glass phase and the formation of the crystal phase, thus reducing the transmittance dramatically.
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Received: 04 February 2016
Revised: 23 May 2016
Accepted manuscript online:
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PACS:
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32.50.+d
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(Fluorescence, phosphorescence (including quenching))
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66.30.hh
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(Glasses)
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Fund: Project supported by the National High Technology Research and Development Program of China (Grant No. 2013AA014201), the Natural Science Foundation of Tianjin, China (Grant Nos. 14JCZDJC31200, 15JCYBJC16700, and 15JCYBJC16800), the National Key Foundation for Exploring Scientific Instrument of China (Grant No. 2014YQ120351), and the International Cooperation Program from Science and Technology of Tianjin, China (Grant No. 14RCGHGX00872). |
Corresponding Authors:
Zhao-Jun Mo, Lan Li
E-mail: mzjmzj163@163.com;lilan@tjut.edu.cn
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Cite this article:
Han Jin(金含), Zhao-Jun Mo(莫兆军), Xiao-Song Zhang(张晓松), Lin-Lin Yuan(苑琳琳), Ming Yan(晏明), Lan Li(李岚) Effect of chloride introduction on the optical properties in Eu3+-doped fluorozirconate glasses 2016 Chin. Phys. B 25 103201
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