共沉淀法合成CaMoO4:Eu3+0.18,B3+0.1红色荧光粉

广西师范大学学报（自然科学版） ›› 2010, Vol. 28 ›› Issue (2): 83-86.

共沉淀法合成CaMoO₄:Eu³⁺_0.18,B³⁺_0.1红色荧光粉

冯玉芝, 彭桂花, 梁振华, 卢锋奇, 韦燕燕

广西师范大学化学化工学院,广西桂林 541004

收稿日期:2009-11-30 出版日期:2010-06-20 发布日期:2023-02-07
通讯作者: 梁振华(1978—),男,广西柳州人,广西师范大学副教授,博士,硕士生导师。E-mail:liangzh@mail.sic.ac.cn
基金资助:
广西科学基金资助项目(桂科自0991099);广西区创新计划项目(2009106020703M40);广西师范大学“大学生创新性实验计划”项目资助

Co-precipitation Synthesis of CaMoO₄:Eu³⁺_0.18,B³⁺_0.1 Red Phosphor for White LED

FENG Yu-zhi, PENG Gui-hua, LIANG Zhen-hua, LU Feng-qi, WEI Yan-yan

College of Chemistry and Chemical Engineering,Guangxi Normal University,Guilin Guangxi 541004,China

Received:2009-11-30 Online:2010-06-20 Published:2023-02-07

摘要/Abstract

摘要： 采用共沉淀法制备了Eu³⁺、B³⁺共掺杂的白光LED用CaMoO₄红色荧光粉,研究了不同Eu³⁺和B³⁺掺杂量对样品发光性能的影响。利用XRD和PL分别对样品的结构和发光性能进行了表征,结果表明:900 °C灼烧3 h后得到CaMoO₄纯相;荧光发射强度随Eu³⁺掺杂量的增加先增大后减小,在Eu³⁺掺杂量为0.18(物质的量分数)时达到最大值;随着B³⁺掺杂量的增加,CaMoO₄:Eu³⁺_0.18,B³⁺_x的荧光发射强度逐渐增强,当B³⁺的掺杂量超过0.1时,样品的颗粒发生严重团聚。

关键词: 共沉淀法, 发光性能, 红色荧光粉, 白光LED

Abstract: Red emitting CaMoO₄:Eu³⁺,B³⁺ phosphor was successfully synthesized by co-precipitation method.The effect of Eu³⁺and B³⁺ doped content on the luminescent properties of the phosphor was investigated.The samples were characterized by X-ray diffraction (XRD) and photoluminescence spectrophotometer (PL).The results showed that the phosphor sintered at 900 °C for 3 h was a pure CaMoO₄ phase;The fluorescence intensity initially increased with increasing Eu³⁺ content,and then decreased,with the maximum intensity appearing at a Eu³⁺ content of 0.18;The emission spectrum intensity of CaMoO₄:Eu³⁺_0.18,B³⁺_x increased with Eu³⁺ doping content increasing,however,the agglomeration of particles are greatly increased when B³⁺ doping content is over 0.1.

Key words: co-precipitation method, luminescent properties, redphosphor, white light emitting diodes

中图分类号:

O611.4

冯玉芝, 彭桂花, 梁振华, 卢锋奇, 韦燕燕. 共沉淀法合成CaMoO₄:Eu³⁺_0.18,B³⁺_0.1红色荧光粉[J]. 广西师范大学学报（自然科学版）, 2010, 28(2): 83-86.

FENG Yu-zhi, PENG Gui-hua, LIANG Zhen-hua, LU Feng-qi, WEI Yan-yan. Co-precipitation Synthesis of CaMoO₄:Eu³⁺_0.18,B³⁺_0.1 Red Phosphor for White LED[J]. Journal of Guangxi Normal University(Natural Science Edition), 2010, 28(2): 83-86.

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