| Enhancement of green emission by the codoping U . 3＋ A＋ （A - Li, Na, K） in Ca2 O3CI.Tb phosphor |
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| 引用本文： | 李盼来,徐征,赵谡玲,张福俊,王永生.Enhancement of green emission by the codoping U . 3＋ A＋ （A - Li, Na, K） in Ca2 O3CI.Tb phosphor[J].中国物理 B,2013(8):663-666. |
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| 作者姓名： | 李盼来 徐征 赵谡玲 张福俊 王永生 |
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| 作者单位： | [1]Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China [2]Key Laboratory of Luminescence and Optical Information, Ministry of Education, Beijing Jiaotong University, Beijing 100044, China c） College of Physics Science ＆ Technology, Hebei University, Baoding 071002, China [3]CollegeofPhysicsScience＆Technology,HebeiUniversity,Baoding071002．China |
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| 基金项目： | Project supported by the National Basic Research Program of China （Grant No. 2010CB327704）, the NaUonal Natural Science Pounaaaon ot tgnlna （tJrant No. 51272022）, the New Century Excellent Talents in University, China （Grant No. NCET-10-0220）, the Research Fund for the Doctoral Program of Higher Education, China （Grant No. 20120009130005）, the Excellent Doctor＇s Science and Technology Innovation Foundation of Beijing Jiaotong University, China （Grant No. 2011YJS073）, and the Fundamental Research Funds for the Central Universities （Grant No. 2012JBZ001）. |
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| 摘 要： | Tb3＋-doped Ca2BO3C1 compounds with different charge compensation approaches are synthesized by a hightemperature solid-state reaction method, and the luminescent properties and Commission Internationale de l＇Eclairage （CIE） chromaticity coordinates are systematically characterized. Ca2BO3Cl：Tb3＋ can produce green emission under 376 nm radiation excitation. With codoped A＋ （A = Li, Na, K） as charge compensators, the relative emission intensities of Ca2BO3Cl：Tb3＋ are enhanced by about 1.61, 1.97, and 1.81 times compared with those of the direct charge balance, which is considered to be due to the effect of the difference in ion radius on the crystal field. The CIE chromaticity coordinates of Ca2BO3CI：Tb3＋, A＋ （A = Li, Na, K） are （0.335, 0.584）, （0.335, 0.585）, and （0.335, 0.585）, corresponding to the hues of green. Therefore, A＋ （A = Li, Na, K） may be the optimal charge compensator for Ca2BO3Cl：Tb3＋.
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| 关 键 词： | 共掺杂 荧光粉 国际照明委员会 锂 钠 钾 电荷补偿 排放 |
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