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固相法制备新型红色荧光粉K6Ba4B8O19∶x%Eu3+的研究

Study on Preparation of Novel Red Fluorescent Powder of K6Ba4B8O19∶x%Eu3+ by Solid Phase Method

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摘要

通过固相反应法合成了一种新型硼酸盐荧光粉K6Ba4B8O19∶x%Eu3+,并测得其荧光量子效率。结果表明,实验合成了接近纯相的K6Ba4B8O19基质;当合成温度为750 ℃时,K6Ba4B8O19∶5%Eu3+的X射线衍射谱与K6Ba4B8O19标准卡片符合较好;在395 nm波长激发下,K6Ba4B8O19∶Eu3+在592 nm(5D07F1)和613 nm(5D07F2)处分别有橘红光和红光发射峰;荧光发射强度随Eu3+摩尔分数的增大而增大,当Eu3+摩尔分数为6%时达到最大值。测得K6Ba4B8O19∶6%Eu3+在激发波长395 nm下的荧光量子效率值为4.51%。获得的粉体呈不规则颗粒状。

Abstract

The novel K6Ba4B8O19∶x%Eu3+ fluorescent powders are prepared by the solid phase reaction method and their fluorescence quantum efficiency is measured. The results indicate that the nearly pure phase of K6Ba4B8O19 matrix is synthesized experimentally. When the synthesis temperature is 750 ℃, the X-ray diffraction spectrum of K6Ba4B8O19∶5%Eu3+ is well consistent with that in the standard card of K6Ba4B8O19. Under an excitation at 395 nm wavelength, the orange and the red emission peaks occur at 592 nm (5D0 7F1) and 613 nm (5D0 7F2) of K6Ba4B8O19∶Eu3+, respectively. The fluorescence emission intensity increases with the increase of Eu3+ mole fraction, and reaches the maximum when the mole fraction of Eu3+ is 6%. The fluorescence quantum efficiency of K6Ba4B8O19∶6%Eu3+ under an excitation at 395 nm is 4.51%. The obtained powders are irregularly granular.

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中图分类号:TQ17

DOI:10.3788/aos201838.0516001

所属栏目:材料

基金项目:国家级大学生创新训练计划(201510703137)、陕西省科技厅工业攻关项目(2017GY-178)、陕西省尾矿资源综合利用重点实验室开放基金(2014SKY-WK0)

收稿日期:2017-08-14

修改稿日期:2017-12-19

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赵亚娟:西安建筑科技大学理学院, 陕西 西安 710055
王晓端:西安建筑科技大学理学院, 陕西 西安 710055
伍孟林:西安建筑科技大学理学院, 陕西 西安 710055
李兆:西安航空学院材料工程学院, 陕西 西安 710077
谢会东:西安建筑科技大学理学院, 陕西 西安 710055
陈利君:西安建筑科技大学理学院, 陕西 西安 710055
陈双莉:西安建筑科技大学理学院, 陕西 西安 710055

联系人作者:赵亚娟(447315969@qq.com)

备注:赵亚娟(1971—),女,博士,副教授,主要从事固体废弃物综合利用方面的研究。E-mail: 447315969@qq.com

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引用该论文

Zhao Yajuan,Wang Xiaoduan,Wu Menglin,Li Zhao,Xie Huidong,Chen Lijun,Chen Shuangli. Study on Preparation of Novel Red Fluorescent Powder of K6Ba4B8O19∶x%Eu3+ by Solid Phase Method[J]. Acta Optica Sinica, 2018, 38(5): 0516001

赵亚娟,王晓端,伍孟林,李兆,谢会东,陈利君,陈双莉. 固相法制备新型红色荧光粉K6Ba4B8O19∶x%Eu3+的研究[J]. 光学学报, 2018, 38(5): 0516001

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