| Ca2B5O9Cl:Eu2+蓝色荧光粉的发光特性 |
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| 引用本文： | 杨志平,王少丽,杨广伟,田晶,郭庆林.Ca2B5O9Cl:Eu2+蓝色荧光粉的发光特性[J].硅酸盐学报,2008,36(2):180-182. |
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| 作者姓名： | 杨志平 王少丽 杨广伟 田晶 郭庆林 |
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| 作者单位： | 1. 河北大学物理科学与技术学院
2. 河北大学电子信息工程学院,河北,保定,071002 |
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| 基金项目： | 河北省科学技术研究与发展计划 |
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| 摘 要： | 采用高温固相法合成了Ca2B5O9Cl:Eu2 蓝色荧光粉,并对其发光性质进行了研究.该荧光粉在近紫外370 nm激发下的发射光谱为峰值位于453 nm的宽带发射,对应了Eu2 的4f65d→4f78S7/2特征跃迁发射.监测453nm的发射峰,得到其激发光谱为250～450nm的宽带,与产生350～410nm辐射的紫外发光二极管(ultraviolet light-emitting diode,UV-LED)管芯匹配很好.当CaCl2用量为理论用量的1.1倍,H3BO3用量为理论用量的1.3倍,Eu2 掺杂浓度为6%时,蓝光发射最强.Ca2B5O9Cl:Eu2 是适合UV-LED管芯激发的白光发光二极管用高亮度蓝色荧光粉.
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| 关 键 词： | 荧光 发光二极管 蓝色荧光粉 铕 luminescence light-emitting diode blue phosphor europium |
| 文章编号： | 0454-5648（2008）02-0180-03 |
| 收稿时间： | 2007-05-26 |
| 修稿时间： | 2007-09-18 |
LUMINESCENCE PROPERTIES OF Eu2+ DOPED Ca2B5O9Cl BLUE PHOSPHOR |
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| YANG Zhiping,WANG Shaoli,YANG Guangwei,TIAN Jing,GUO Qinglin.LUMINESCENCE PROPERTIES OF Eu2+ DOPED Ca2B5O9Cl BLUE PHOSPHOR[J].Journal of The Chinese Ceramic Society,2008,36(2):180-182. |
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| Authors: | YANG Zhiping WANG Shaoli YANG Guangwei TIAN Jing GUO Qinglin |
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| Abstract: | A Ca2B5O9Cl:Eu2+ blue phosphor was synthesized by high temperature solid state reaction and its luminescence properties were investigated. The results show that a peak of the broad blue emission band for the excitation of 370 nm located at 453 nm, which corresponds to the 4f65d→4f78S7/2 eigen transition of Eu2+. The emission peak was monitored at 453 nm, and the obtained excitation spectrum extends from 250 nm to 450 nm, which indicates that this phosphor can be excited effectively by near-ultraviolet light-emitting diodes (UV-LEDs). When CaCl2 and H3BO3 are added at 1.1 and 1.3 times ofthe theoretic dosage respectively and the molar fraction of Eu2+ is 6%, the most intense blue emission is obtained. The phosphor is a very appropriate blue-emitting phosphor for white light-emitting diode devices with UV chips. |
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| Keywords: | luminescence light-emitting diode blue phosphor europium |
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