Combustion Preparation and Near-infrared Phosphors of Gd2O3：Bi3+,Nd3+

ZOU Yang; CAI Jian-liang; LIN Li-tian; TANG Li; MENG Jian-xin

doi:10.3788/fgxb20143505.0531

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Combustion Preparation and Near-infrared Phosphors of Gd₂O₃：Bi³⁺,Nd³⁺

更新时间：2020-08-12

- Combustion Preparation and Near-infrared Phosphors of Gd₂O₃：Bi³⁺,Nd³⁺
- Chinese Journal of Luminescence Vol. 35, Issue 5, Pages: 531-535(2014)
- 作者机构：
  
  暨南大学化学系,广东广州,510632
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20143505.0531
  CLC： O482.31
- Received：06 December 2013，
  
  Revised：14 March 2014，
  
  Published：03 May 2014
- 稿件说明：
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邹阳, 蔡建亮, 林利添等. 纳米单斜相Gd2O3：Bi3+,Nd3+的燃烧法制备和近红外发光[J]. 发光学报, 2014,35(5): 531-535

ZOU Yang, CAI Jian-liang, LIN Li-tian etc. Combustion Preparation and Near-infrared Phosphors of Gd2O3：Bi3+,Nd3+[J]. Chinese Journal of Luminescence, 2014,35(5): 531-535
邹阳, 蔡建亮, 林利添等. 纳米单斜相Gd2O3：Bi3+,Nd3+的燃烧法制备和近红外发光[J]. 发光学报, 2014,35(5): 531-535 DOI： 10.3788/fgxb20143505.0531.

ZOU Yang, CAI Jian-liang, LIN Li-tian etc. Combustion Preparation and Near-infrared Phosphors of Gd2O3：Bi3+,Nd3+[J]. Chinese Journal of Luminescence, 2014,35(5): 531-535 DOI： 10.3788/fgxb20143505.0531.

摘要

采用甘氨酸作为燃料，制备了单斜相Gd

：Bi

，Nd

纳米发光材料。使用X射线粉末衍射仪和TEM对样品的结构和形貌进行了表征，并研究了制备条件对样品的可见及近红外激发和发射光谱、发光强度、荧光寿命等的影响。结果表明，体系中存在高效的Bi

能量传递过程，当Bi

和Nd

的掺杂摩尔分数分别为6%和2%时，单斜相Gd

：Bi

，Nd

荧光粉可以获得最强的近红外光发射。与单掺Nd

的样品相比，单斜相Gd

中掺杂Bi

和Nd

后，样品的近红外发光增强近20倍。

Abstract

Monoclinic Gd

:Bi

phosphors were prepared by combustion method using glycine as a fuel. The structure of the phosphor was characterized by X-ray diffraction and TEM. The influences of Bi

/Nd

concentration on the spectrum shape

fluorescence intensity and fluorescence lifetimes were investigated. The results show that there is an efficient energy transfer from Bi

to Nd

ions in Gd

:Bi

. With optimized Bi

mole fraction of 6% and Nd

mole fraction of 2%

the monoclinic Gd

:Bi

phosphor has the strongest near-infrared luminescence intensity

which is about 20 times stronger than the sample without Bi

doping.

关键词

Keywords

references

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