| Photoluminescence properties of（Gd1-xEux）Ba3B9O18 red emitting phosphors |
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| 引用本文： | 张新民,陈洪,金锺守.Photoluminescence properties of（Gd1-xEux）Ba3B9O18 red emitting phosphors[J].中国稀土学报(英文版),2009,27(1):50-53. |
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| 作者姓名： | 张新民 陈洪 金锺守 |
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| 作者单位： | ZHANG Xinmin,CHEN Hong(School of Materials Science and Engineering, Central South University of Forestry and Technology, Changsha 410004,China);KIM Jongsu(Division of Imagesystem Science and Engineering Pukyong National University Busan 608-739 Korea)
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| 基金项目： | Project supported by the Scientific Research Foundation for Advanced Talents of Central South University of Forestry and Technology （07Y023） |
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| 摘 要： |
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| 关 键 词： | 光致发光特性 荧光粉 红色发光 光致发光光谱 固相反应 吸收光谱 光学带隙 典型特征 |
| 收稿时间： | 29 May 2008 |
Photoluminescence properties of(Gd1-xEux)Ba3B9O18red emitting phosphors |
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| ZHANG Xinmin,CHEN Hong,KIM Jongsu.Photoluminescence properties of(Gd1-xEux)Ba3B9O18red emitting phosphors[J].Journal of Rare Earths,2009,27(1):50-53. |
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| Authors: | ZHANG Xinmin CHEN Hong KIM Jongsu |
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| Affiliation: | ZHANG Xinmin, CHEN Hong , KIM Jongsu (1. School of Materials Science and Engineering, Central South University of Forestry and Technology, Chongsha 410004, China; 2. Division of lmagesystem Science and Engineering, Pukyong National University, Busan 608-739, Korea) |
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| Abstract: | Eu3+-activated GdBa3B9O18 phosphors were prepared by solid-state reaction at high temperature, and their photoluminescence (PL) properties were investigated. (Gd1-xEux)Ba3B9O18 formed solid solutions in the range x=0-1.0. The optical band gaps calculated from absorption spectra were 5.54 eV for GdBa3B9O18 and 5.17 eV for EuBa3B9O18. Unactivated GdBa3B9O18 exhibited a typical characteristic excitation and emission of Gd3+ ion. The (Gd1-xEux)Ba3B9O18 phosphors showed well-known Eu3+ excitation and emission. The energy transfer from Gd3+ to Eu3+ was verified with PL spectra. The dependence of PL intensity on Eu3+ concentration was also studied in detail. The luminescence decay measurements indicated that the lifetimes of 5D0→7F1 transition of Eu3+ were in the order of millisecond. |
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| Keywords: | photoluminescence phosphor GdBa3B9O18 europium rare earths |
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