Photoluminescence characterization and energy transfer of NaBa1－x－yPO4:xCe3+, yTb3+ phosphors
来源期刊：JOURNAL OF RARE EARTHS2012年第8期
论文作者：豆喜华 赵韦人 宋恩海 邓玲玲 方夏冰
文章页码：739 - 743
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.
豆喜华1，赵韦人1，宋恩海1，邓玲玲1，方夏冰1
1. School of Physics & Optoelectronic Engineering, Guangdong University of Technology
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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