| Photoluminescence characterization and energy transfer of NaBa1-x-yPO4：xCe3＋, yTb3＋ phosphors |
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| 引用本文： | 豆喜华,赵韦人,宋恩海,邓玲玲,方夏冰,闵华初.Photoluminescence characterization and energy transfer of NaBa1-x-yPO4：xCe3＋, yTb3＋ phosphors[J].中国稀土学报(英文版),2012,30(8):739-743. |
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| 作者姓名： | 豆喜华 赵韦人 宋恩海 邓玲玲 方夏冰 闵华初 |
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| 作者单位： | School of Physics & Optoelectronic Engineering, Guangdong University of Technology;Dongguan Xinguanyuan Electronic Co., Ltd. |
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| 基金项目： | Project supported by the Cooperation Project in Industry, Education and Research of Guangdong Province;Ministry of Education of China(2010B090400021) |
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| 摘 要： | A series of NaBa1-x-yPO4: xCe3+, yTb3+ phosphors were synthesized by solid-state reaction method. The crystal structure, photoluminescence emission and excitation spectra and decay times of the phosphors were carefully investigated. The results revealed that an efficient energy transfer occurred from Ce3+ to Tb3+ ions in NaBaPO4 host by means of dipole-dipole interactions and the critical distance of the energy transfer was about 0.638 nm. Moreover, the phosphor emitted strong green emission under UV excitation, indicating that the phosphors are potentially useful as a highly efficient, green-emitting phosphor.
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| 关 键 词： | optical materials crystal structure luminescence rare earths |
| 收稿时间： | 2 November 2011 |
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