Red shift of O2-&rarr;Eu3+ Charge Transfer Band by Changing The Host Cationic Radiu

WANG Hong-jie; LYU Ling-ling; ZHANG Su; FENG Jing; PANG Ran; JIANG Li-hong; LI Da; LI Cheng

doi:10.3788/fgxb20173811.1429

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Red shift of O^2-→Eu³⁺ Charge Transfer Band by Changing The Host Cationic Radiu

更新时间：2020-08-12

- Red shift of O^2-→Eu³⁺ Charge Transfer Band by Changing The Host Cationic Radiu
- Chinese Journal of Luminescence Vol. 38, Issue 11, Pages: 1429-1435(2017)
- 作者机构：
  
  1. 吉林建筑大学材料科学与工程学院,吉林长春,130118
  2. 中国科学院长春应用化学研究所稀土资源利用国家重点实验室, 吉林长春 130022
- 作者简介：
- 基金信息：
  
  Supported by National Key Research and Development Plan(2016YFB0701003)
- DOI：10.3788/fgxb20173811.1429
  CLC： O482.31
- Received：06 April 2017，
  
  Revised：06 June 2017，
  
  Published Online：13 July 2017，
  
  Published：05 November 2017
- 稿件说明：
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王洪杰, 吕玲玲, 张粟等. 通过改变基质阳离子半径使O2-→Eu3+电荷迁移带红移[J]. 发光学报, 2017,38(11): 1429-1435

WANG Hong-jie, LYU Ling-ling, ZHANG Su etc. Red shift of O2-→Eu3+ Charge Transfer Band by Changing The Host Cationic Radiu[J]. Chinese Journal of Luminescence, 2017,38(11): 1429-1435
王洪杰, 吕玲玲, 张粟等. 通过改变基质阳离子半径使O2-→Eu3+电荷迁移带红移[J]. 发光学报, 2017,38(11): 1429-1435 DOI： 10.3788/fgxb20173811.1429.

WANG Hong-jie, LYU Ling-ling, ZHANG Su etc. Red shift of O2-→Eu3+ Charge Transfer Band by Changing The Host Cationic Radiu[J]. Chinese Journal of Luminescence, 2017,38(11): 1429-1435 DOI： 10.3788/fgxb20173811.1429.

摘要

采用高温固相法在1 300℃合成了

0.98

∶Eu

0.02

（

=Ca，Sr，Ba）荧光粉。X射线衍射（XRD）的结果表明烧结后得到的产物为纯相。利用稳态荧光光谱（PL）和漫反射光谱（DRS）对

0.98

∶Eu

0.02

（

=Ca，Sr，Ba）的发光性质进行了研究。结果表明

0.98

∶Eu

0.02

（

=Ca，Sr，Ba）荧光粉可以发射Eu

的特征红光，光强度按CaNb

SrNb

BaNb

从大到小排列。激发光谱中可以观察到Eu

离子的电荷转移跃迁（CT）和f-f跃迁吸收。其中CT吸收峰因基质阳离子半径的增大而发生了较大程度的红移，从270 nm红移到了330 nm。

Abstract

The phosphors with general molecular formula

0.98

:Eu

0.02

(

=Ca

Ba) were prepared by the high-temperature solid state reaction technique. X-ray diffraction (XRD) results reveal that the obtained products are pure phase. The luminescence properties of

0.98

:Eu

0.02

(

=Ca

Ba) were investigated by photoluminescence spectra(PL) and diffuse reflection spectra(DRS).

0.98

:Eu

0.02

(

=Ca

Ba) phosphors can exhibit the characteristic red emission of Eu

and PL intensities of

0.98

:Eu

0.02

are in the order of CaNb

SrNb

BaNb

. The charge transfer transition(CT) and f-f transition absorption of Eu

3 +

can be observed in the excitation spectra. With the increase of the host cationic radius

the CT band shows large red shift from 270 to 330 nm.

关键词

Keywords

references

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⁰

Red shift of O2-→Eu3+ Charge Transfer Band by Changing The Host Cationic Radiu

DOI：10.3788/fgxb20173811.1429

摘要

Abstract

关键词

Keywords

references

Red shift of O^2-→Eu³⁺ Charge Transfer Band by Changing The Host Cationic Radiu