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发光颜色可调的Ba3YB9O18：Tb3+, Eu3+荧光粉及能量传递
Tunable Photoluminescence Properties and Energy Transfer of Ba3YB9O18:Tb3+, Eu3+ Phosphors
- 发光学报 2021年42卷第1期 页码：83-90
- 作者机构：
1.西安建筑科技大学 化学与化工学院, 陕西 西安 710055
2.吉林大学 化学学院, 吉林 长春 130012
- 作者简介：
[ "冷稚华(1989-), 男, 湖北孝感人, 博士, 副教授, 2019年于吉林大学获得博士学位, 主要从事稀土发光材料的可控制备和性能调控的研究。E-mail:lengzh@xauat.edu.cn" ]
- 基金信息：陕西省教育厅一般专项科学研究计划(20JK0706)
DOI：10.37188/CJL.20200260
中图分类号： O482.31;O611.4纸质出版日期：2021-01，
收稿日期：2020-08-31，
录用日期：2020-9-20
- 稿件说明：
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冷稚华, 谭哲, 刘书宏. 发光颜色可调的Ba3YB9O18：Tb3+, Eu3+荧光粉及能量传递[J]. 发光学报, 2021,42(1):83-90.
ZHI-HUA LENG, ZHE TAN, SHU-HONG LIU. Tunable Photoluminescence Properties and Energy Transfer of Ba3YB9O18:Tb3+, Eu3+ Phosphors. [J]. Chinese journal of luminescence, 2021, 42(1): 83-90.
冷稚华, 谭哲, 刘书宏. 发光颜色可调的Ba3YB9O18：Tb3+, Eu3+荧光粉及能量传递[J]. 发光学报, 2021,42(1):83-90. DOI： 10.37188/CJL.20200260.
ZHI-HUA LENG, ZHE TAN, SHU-HONG LIU. Tunable Photoluminescence Properties and Energy Transfer of Ba3YB9O18:Tb3+, Eu3+ Phosphors. [J]. Chinese journal of luminescence, 2021, 42(1): 83-90. DOI： 10.37188/CJL.20200260.
摘要
利用高温固相法制备了一系列发光颜色可调的Ba
3
YB
9
O
18
：Tb
3+
，Eu
3+
荧光粉。采用X射线衍射（XRD）、透射电子显微镜（TEM）研究了所得荧光粉的相纯度和晶体结构。XRD精修结果表明，当Y
3+
被Eu
3+
取代时，Ba
3
YB
9
O
18
：Tb
3+
，Eu
3+
系列样品的线性结构变化能很好地符合Vegard定律。此外，通过发射光谱和荧光寿命验证了Ba
3
YB
9
O
18
：Tb
3+
，Eu
3+
荧光粉中Tb
3+
到Eu
3+
的能量传递过程。Tb
3+
到Eu
3+
的能量传递机理为偶极-偶极相互作用。随着Eu
3+
掺杂量的增加，荧光粉的发光颜色可以由绿色逐渐过渡到红色。这些结果表明合成的Ba
3
YB
9
O
18
：Tb
3+
，Eu
3+
荧光粉在紫外光激发的固态照明领域具有潜在的应用前景。
Abstract
A series of Ba
3
YB
9
O
18
:Tb
3+
Eu
3+
phosphors with tunable photoluminescence were successfully prepared by solid state reaction. X-ray diffraction(XRD) and transmission electron microscopy(TEM) were utilized to investigate the phase purity and crystal structure of the as-obtained phosphors. The XRD refinement results demonstrate that the linear structural evolution of Ba
3
YB
9
O
18
:Tb
3+
Eu
3+
solid-solutions obeys excellent Vegard's rule when Y
3+
were substituted by Eu
3+
ions. Moreover
the energy transfer process from Tb
3+
to Eu
3+
in Ba
3
YB
9
O
18
:Tb
3+
Eu
3+
phosphors was verified by emission spectra and decay curves. The energy transfer mechanism from Tb
3+
to Eu
3+
was proved to be the electric dipole-dipole interaction. Due to the energy transfer process from Tb
3+
to Eu
3+
the color tones can be gradually adjusted from green to red with increasing Eu
3+
doping content. These results manifest that the as-synthesized Ba
3
YB
9
O
18
:Tb
3+
Eu
3+
phosphors may find potential applications for UV excited solid state lighting.
关键词
Ba3YB9O18光致发光能量传递荧光粉
Keywords
Ba3YB9O18photoluminescenceenergy transferphosphors
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