Influence of Tb3+ Concentration on The Luminescent Properties of SrMoO4∶Tb3+

GUAN Li; ZUO Jin-gai; LIU Chong; SUN Ming-sheng; LIU Hai-yan; LI Xu; YANG Zhi-ping; FU Guan

doi:10.3788/fgxb20113208.0779

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Influence of Tb³⁺ Concentration on The Luminescent Properties of SrMoO₄∶Tb³⁺

paper | 更新时间：2020-08-12

- Influence of Tb³⁺ Concentration on The Luminescent Properties of SrMoO₄∶Tb³⁺
- Chinese Journal of Luminescence Vol. 32, Issue 8, Pages: 779-783(2011)
- 作者机构：
  
  河北大学物理科学与技术学院学院,河北保定,071002
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20113208.0779
  CLC： O482.31
- Received：24 February 2011，
  
  Revised：17 June 2011，
  
  Published Online：22 August 2011，
  
  Published：22 August 2011
- 稿件说明：
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关丽, 左金改, 刘冲, 孙明生, 刘海燕, 李旭, 杨志平, 傅广生. Tb3+ 浓度对SrMoO4∶Tb3+ 发光性能的影响[J]. 发光学报, 2011,32(8): 779-783

GUAN Li, ZUO Jin-gai, LIU Chong, SUN Ming-sheng, LIU Hai-yan, LI Xu, YANG Zhi-ping, FU Guang-sheng. Influence of Tb3+ Concentration on The Luminescent Properties of SrMoO4∶Tb3+[J]. Chinese Journal of Luminescence, 2011,32(8): 779-783
关丽, 左金改, 刘冲, 孙明生, 刘海燕, 李旭, 杨志平, 傅广生. Tb3+ 浓度对SrMoO4∶Tb3+ 发光性能的影响[J]. 发光学报, 2011,32(8): 779-783 DOI： 10.3788/fgxb20113208.0779.

GUAN Li, ZUO Jin-gai, LIU Chong, SUN Ming-sheng, LIU Hai-yan, LI Xu, YANG Zhi-ping, FU Guang-sheng. Influence of Tb3+ Concentration on The Luminescent Properties of SrMoO4∶Tb3+[J]. Chinese Journal of Luminescence, 2011,32(8): 779-783 DOI： 10.3788/fgxb20113208.0779.

摘要

采用溶胶-燃烧法合成了Tb

掺杂的SrMoO

荧光粉并研究了它的发光性能。X射线衍射(XRD)显示

前驱物在750 ℃下灼烧3 h得到的样品为纯相的SrMoO

。样品的激发谱由一宽带和一组窄峰组成

其中激发强度较强的峰位于288 nm和375 nm。发射谱由4组窄带组成

其中最强峰位于548 nm。对于548 nm(

)发射峰

最佳的Tb

掺杂摩尔分数为0.05

其浓度猝灭机理为Tb

离子的电偶极-电偶极相互作用。当尿素用量为理论用量的3倍时

发光强度最强。最佳烧结温度为750 ℃

最佳烧结时间为3 h。当Tb

摩尔分数为0.05时

样品发光的CIE色坐标为(0.279 4

0.565 2)。结果表明

激活的SrMoO

是一种较好可应用于白光LED的紫外激发的绿光发光材料。

Abstract

Trivalent terbium (Tb

) doped strontium molybdate (SrMoO

) was synthesized by sol-combustion method and the crystal structure and luminescent properties were investigated in this paper. The X-ray diffraction patterns (XRD) showed that the phosphors sintered at 750 ℃ for 3 h were pure SrMoO

phase. The excitation spectrum consisted of a broad band and a series of narrow bands

in which the higher energy peaks located at 288 nm and 375 nm

respectively. The emission spectrum was composed of four narrow bands and the strongest emission peak was located at 548 nm. The appropriate doping molar fraction of Tb

was 0.05 for the 548 nm emission. The concentration quenching of 548 nm (

) was attributed to d-d interaction. When the dosage of urea was 3 times of theory dosage

the luminescent intensity reached the maximum. The optimal sintering temperature and time were 750 ℃ and 3 h

respectively. These results showed that this Tb

activated SrMoO

was a promising green phosphor for ultraviolet (UV) and blue InGaN-based white LED.

关键词

Keywords

references

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Related Institution

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