首页 | 本学科首页   官方微博 | 高级检索  
     检索      

绿色发光粉CaBa2(BO3)2 ∶ Tb3+的 制备和发光特性
引用本文:杨志平,宋兆丰,马欣,王凤和,郭颖楠,闻建伟.绿色发光粉CaBa2(BO3)2 ∶ Tb3+的 制备和发光特性[J].发光学报,2010,31(5):724-727.
作者姓名:杨志平  宋兆丰  马欣  王凤和  郭颖楠  闻建伟
作者单位:1. 河北大学 物理科学与技术学院, 河北 保定 071002; 2. 河北大学 电子信息工程学院, 河北 保定 071002
基金项目:河北科学技术发展基金(F200900217)资助项目
摘    要:采用高温固相法合成了绿色荧光粉CaBa2(BO3)2 ∶ Tb3+ 并对其发光特性进行了研究。发射峰值位于496, 549, 588, 622 nm,分别对应Tb3+5D47F65D47F55D47F45D47F3 能级跃迁。其中以496 nm和549 nm的发射峰最强,样品呈现很好的绿色发光。 主要激发峰位于200~300 nm之间,属于4f75d1宽带吸收。考察了Tb3+掺杂 浓度和Li+ , Na+ 和 K+ 作为电荷补偿剂对样品发光性能的影响,几乎不发生浓度猝灭现象,Li+的补偿效果最好。还确定了原料CaCO3、BaCO3、H3BO3的最佳配比,当H3BO3过量3%时,合成的晶体发光亮度最好。

关 键 词:发光  荧光粉  CaBa2(BO3)2    Tb3+
收稿时间:2009-10-20
修稿时间:2009-11-02

Preparation and Luminescent Properties of Green CaBa2(BO3)2 ∶ Tb3+ Phosphor
YANG Zhi-ping,SONG Zhao-feng,MA Xin,WANG Feng-he,GUO Ying-nan,WEN Jian-wei.Preparation and Luminescent Properties of Green CaBa2(BO3)2 ∶ Tb3+ Phosphor[J].Chinese Journal of Luminescence,2010,31(5):724-727.
Authors:YANG Zhi-ping  SONG Zhao-feng  MA Xin  WANG Feng-he  GUO Ying-nan  WEN Jian-wei
Institution:1. Physics Science and Technology College, Hebei University, Baoding 071002, China; 2. College of Electronic and Informational Engineering, Hebei University, Baoding 071002, China
Abstract:CaBa2(BO3)2 ∶ Tb3+ green phosphor was synthesized by the general high temperature solid-state reaction and its luminescence properties were investigated. It shows four major emission peaks locating at 496, 549, 588 and 622 nm, corresponding to the 5D4 →7F6, 5D4 →7F5, 5D4 →7F4 and 5D4 →7F3 typical transition of Tb3+ , respectively. The most intense peaks located at 496 nm and 549 nm,the phosphor shows excellent green emission.The excitation spectra contains a abroad band extending from 200 nm to 300 nm, which correspond to 4f7-5d1 broadband absorption. The effects of doped Tb3+ concentration and charge compensating of Li+, Na+ and K+ on the emission intensity were also investigated: the concentration quench phenomenon does not appear nearly and Li+ gives the best improvement to enhance the intensity of the emission.Make sure the best mixture ratio of raw material which are CaCO3,BaCO3,H3BO3. Emission intensity of synthetic crystal is the best, when H3BO3 is excessive to 3%.
Keywords:luminescence                  phosphor                  CaBa2(BO3)2 ∶ Tb3+
本文献已被 CNKI 等数据库收录!
点击此处可从《发光学报》浏览原始摘要信息
点击此处可从《发光学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号