| Eu^2＋在KCaPO4中的发光及晶体学格位 |
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| 引用本文： | 李盼来,王蕴珠,王志军,郭庆林,杨志平.Eu^2＋在KCaPO4中的发光及晶体学格位[J].光电子．激光,2011(9):1352-1355. |
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| 作者姓名： | 李盼来 王蕴珠 王志军 郭庆林 杨志平 |
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| 作者单位： | 河北大学物理科学与技术学院；;河北大学计算中心；;河北大学物理科学与技术学院；;河北大学物理科学与技术学院；;河北大学物理科学与技术学院； |
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| 基金项目： | 国家自然科学基金资助项目(50902042);河北省自然科学基金资助项目(E2009000209E2010000283);河北省教育厅基金资助项目(2009313);发光与光信息技术教育部重点实验室研究基金资助项目(2010LOI12) |
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| 摘 要： | 采用高温固相法制备了KCaPO4：Eu^2＋蓝绿色荧光粉,研究了材料的发光特性。在400 nm近紫外光激发下,材料呈非对称的单峰发射,主峰位于487 nm。监测487 nm发射峰,对应的激发光谱覆盖300-450 nm,说明材料能够很好的吸收紫外-近紫外光,发射蓝绿色光。利用van Uitert公式计算了Eu^2＋取代...
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| 关 键 词： | 白光发光二极管(LED) KCaPO4：Eu^2+ 发光特性 晶体学格位 |
Luminescence and crystallographic sites of Eu2+ in KCaPO4 |
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| LI Pan-lai,WANG Yun-zhu,WANG Zhi-jun,GUO Qing-lin and YANG Zhi-ping.Luminescence and crystallographic sites of Eu2+ in KCaPO4[J].Journal of Optoelectronics·laser,2011(9):1352-1355. |
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| Authors: | LI Pan-lai WANG Yun-zhu WANG Zhi-jun GUO Qing-lin and YANG Zhi-ping |
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| Affiliation: | College of Physics Science & Technology,Hebei University,Baoding 071002,China;;Center of Compution,Hebei University,Baoding 071002,China;College of Physics Science & Technology,Hebei University,Baoding 071002,China;;College of Physics Science & Technology,Hebei University,Baoding 071002,China;;College of Physics Science & Technology,Hebei University,Baoding 071002,China; |
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| Abstract: | A blue-greenish phosphor,KCaPO4:Eu2+,was prepared by the high temperature solid-state method,and its luminescent characteristics were investigated.The emission and excitation spectra indicate that it can be effectively excited by ultraviolet and near ultraviolet(300-450 nm) light,and exhibits satisfactory bluegreenish performance(487 nm).The crystallographic sites of Eu2+ in KCaPO4 were calculated by the van Uitert formula.The results show that the 478 nm emission band originates from the eight ... |
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| Keywords: | white light emitting diode(LED) KCaPO4:Eu2+ luminescence crystallographic sites |
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