Tunable Photoluminescence Properties and Energy Transfer of Ba3YB9O18:Tb3+, Eu3+ Phosphors

Zhi-hua LENG; Zhe TAN; Shu-hong LIU

doi:10.37188/CJL.20200260

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Tunable Photoluminescence Properties and Energy Transfer of Ba₃YB₉O₁₈:Tb³⁺, Eu³⁺ Phosphors

Synthesis and Properties of Materials | 更新时间：2021-01-12

- Tunable Photoluminescence Properties and Energy Transfer of Ba₃YB₉O₁₈:Tb³⁺, Eu³⁺ Phosphors
- Chinese Journal of Luminescence Vol. 42, Issue 1, Pages: 83-90(2021)
- 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：
- 基金信息：
  
  the the Natural Science Foundation of Shaanxi Provincial Department of Education
- DOI：10.37188/CJL.20200260
  CLC： O482.31;O611.4
- Received：31 August 2020，
  
  Accepted：20 September 2020，
  
  Published：2021-01
- 稿件说明：
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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：

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

：Tb

，Eu

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

被Eu

取代时，Ba

：Tb

，Eu

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

：Tb

，Eu

荧光粉中Tb

到Eu

的能量传递过程。Tb

到Eu

的能量传递机理为偶极-偶极相互作用。随着Eu

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

：Tb

，Eu

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

:Tb

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

:Tb

solid-solutions obeys excellent Vegard's rule when Y

were substituted by Eu

ions. Moreover

the energy transfer process from Tb

to Eu

in Ba

:Tb

phosphors was verified by emission spectra and decay curves. The energy transfer mechanism from Tb

to Eu

was proved to be the electric dipole-dipole interaction. Due to the energy transfer process from Tb

to Eu

the color tones can be gradually adjusted from green to red with increasing Eu

doping content. These results manifest that the as-synthesized Ba

:Tb

phosphors may find potential applications for UV excited solid state lighting.

关键词

Keywords

references

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Related Institution

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