| Effects of charge compensation on red emission in CaYAl3OT7：Eu3＋ phosphor |
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| 引用本文： | 黄飞飞,刘雪强,李韦韦,胡丽丽,陈丹平.Effects of charge compensation on red emission in CaYAl3OT7：Eu3＋ phosphor[J].Chinese Optics Letters,2014(5):37-40. |
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| 作者姓名： | 黄飞飞 刘雪强 李韦韦 胡丽丽 陈丹平 |
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| 作者单位： | [1]College of Materials Science and Engineering, Kunming University of Science and Technology, Kunming 650093, China; [2]Key Laboratory of Advanced Materials of Yunnan Province, Kunming 650093, China |
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| 基金项目： | supported by the National Natural Science Foundation of China under Gramt No.51172252 |
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| 摘 要： | Monovalent ions Li＋, Na＋, and K＋, as charge compensators, are introduced into CaYA1307： M （M = Eu3＋, Ce~＋） in this letter. Their crystal phases and photoluminescence properties of different alkali metal ions doped in CaYA1307 are investigated. In addition, the influence of charge compensation ion Li＋ which has a more obvious role in improving luminescence intensity on CaYA1307： Eu3＋ phosphor is intentionally discussed in detail and a possible mechanism of charge compensation is given. The enhancement of red emission centered at 618 nm belonging to Eu3＋ is achieved by adding alkali metal ion Li＋ under 393-nm excitation.
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| 关 键 词： | 电荷补偿 荧光粉 发射费用 碱金属离子 铕 红光 发光特性 发光强度 |
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