Ba2+共掺杂YPO4∶Tb3+荧光材料的水热合成与荧光性能*

doi:10.11896/j.issn.1005-023X.2017.018.004

《材料导报》期刊社

2017, Vol. 31

Issue (18): 16-20 https://doi.org/10.11896/j.issn.1005-023X.2017.018.004

材料研究

Ba²⁺共掺杂YPO₄∶Tb³⁺荧光材料的水热合成与荧光性能^*

付兵^1,2, 欧娅^1,2, 刘欢^1,2, 顾曼琦¹, 陈卓^1,2, 杨锦瑜^1,2

1 贵州师范大学化学与材料科学学院, 贵阳 550001;
2 贵州省功能材料化学重点实验室, 贵阳 550001

Ba²⁺ Co-doped YPO₄∶Tb³⁺ Phosphors:Hydrothermal Synthesis and Photoluminescence Properties

FU Bing^1,2, OU Ya^1,2, LIU Huan^1,2, GU Manqi¹, CHEN Zhuo^1,2, YANG Jinyu^1,2

1 School of Chemistry and Materials Science, Guizhou Normal University, Guiyang 550001;
2 Key Lab for Functional Materials Chemistry of Guizhou Province, Guiyang 550001

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摘要采用水热法合成Ba²⁺共掺杂YPO₄∶Tb³⁺荧光材料,并通过X射线衍射(XRD)、扫描电子显微镜(SEM) 和荧光分光光度计等研究了合成样品的物相组成和荧光性能,并分析了Ba²⁺掺杂量和反应体系pH值等对合成样品的物相结构及荧光性能的影响。结果表明,反应体系pH值和Ba²⁺掺杂量直接影响所制备样品的结构与性能。少量Ba²⁺(≤10%,原子分数,下同)共掺杂YPO₄∶1%Tb³⁺样品均为纯相四方晶系磷钇矿结构晶体,过量Ba²⁺掺杂导致Ba₃(PO₄)₂杂质相的出现;pH值为6的水热环境下可获得高结晶度的单一相Ba²⁺、Tb³⁺共掺杂YPO₄样品。激发和发射光谱测试结果表明,所制备的YPO₄∶1%Tb³⁺,x%Ba²⁺样品可被225 nm的紫外光有效地激发而发射出强烈的Tb³⁺特征的黄绿色光。一定量的Ba²⁺共掺杂可以有效地提高YPO₄∶1%Tb³⁺样品的荧光性能,但过量(高于10%)的Ba²⁺掺杂又会导致Tb³⁺的荧光猝灭现象出现,最佳的Ba²⁺共掺杂量为10%。所制备的YPO₄∶1%Tb³⁺,10%Ba²⁺样品在225 nm紫外光激发下位于545 nm处的发射带强度是YPO₄∶1%Tb³⁺样品的1.8倍。

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	付兵
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	杨锦瑜

关键词: YPO₄∶Tb³⁺/Ba²⁺共掺杂水热法荧光稀土发光材料

Abstract: Ba²⁺ co-doped YPO₄∶Tb³⁺phosphors were successfully synthesized by hydrothermal method. The crystal structure and optical properties of the as-synthesized samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), photoluminescence (PL). The influences of Ba²⁺ co-doping concentration and precursor solution pH on the phase structure and luminescence properties of the as-products were investigated. The results show that the pH and Ba²⁺ co-doping concentration play the key role in the structure and luminescence properties of the as-synthesized samples. A small amount of Ba²⁺ (no more than 10 at%) co-doped YPO₄∶1 at%Tb³⁺ samples are single-phase crystals with tetragonal xenotime structure, and Ba₃(PO₄)₂ impurity phase can be observed in the sample co-doped with a large amount of Ba²⁺. The pure and high crystallinity Ba²⁺, Tb³⁺ co-doped YPO₄ samples can be obtained at pH 6 condition. The results of excitation and emission spectra show that the YPO₄∶1 at%Tb³⁺, x at%Ba²⁺ samples can be excited by 225 nm UV light and emit the characteristic yellow-green light of Tb³⁺. An appropriate amount of Ba²⁺ co-doped YPO₄∶1 at%Tb³⁺ samples display enhanced luminescence, and a large amount of Ba²⁺ (more than 10 at%) co-doping in the YPO₄∶1 at%Tb³⁺ samples can quench the Tb³⁺ emission. The optimized doping content of Ba²⁺ is 10 at%. The intensity of emission peak located at 545 nm of YPO₄∶1 at%Tb³⁺, 10 at% Ba²⁺ sample are 1.8 times as many of the YPO₄∶1 at%Tb³⁺ sample.

Key words: YPO₄∶Tb³⁺/Ba²⁺ co-doping hydrothermal method photoluminescence rare earth luminescent material

出版日期: 2017-09-25 发布日期: 2018-05-08

ZTFLH:

TQ422

基金资助: 国家自然科学基金(213610007);贵州省自然科学基金(黔科合J字[2012]2269号);贵州省高层次人才科研特助经费项目(TZJY-2011-40);贵州省国际科技合作计划项目(黔科合外G字[2013]7015号)

通讯作者: 杨锦瑜:通讯作者,男,1978年生,博士,教授,研究方向为无机发光材料 E-mail:jinyuyang@gmail.com

作者简介: 付兵:男,1989年生,硕士研究生,研究方向为稀土发光材料 E-mail:635031039@qq.com

引用本文:

付兵, 欧娅, 刘欢, 顾曼琦, 陈卓, 杨锦瑜. Ba²⁺共掺杂YPO₄∶Tb³⁺荧光材料的水热合成与荧光性能^*[J]. 《材料导报》期刊社, 2017, 31(18): 16-20.
FU Bing, OU Ya, LIU Huan, GU Manqi, CHEN Zhuo, YANG Jinyu. Ba²⁺ Co-doped YPO₄∶Tb³⁺ Phosphors:Hydrothermal Synthesis and Photoluminescence Properties. Materials Reports, 2017, 31(18): 16-20.

链接本文:

https://www.mater-rep.com/CN/10.11896/j.issn.1005-023X.2017.018.004 或 https://www.mater-rep.com/CN/Y2017/V31/I18/16

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