UV Upconversion Luminescence of Gd3+ in Yb/Tm/Gd Doped Y2O3 Microcrystals

ZHANG Peng; LI Da-guang; LIU Shi-hu; WANG Li-li

doi:10.3788/fgxb20153608.0893

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UV Upconversion Luminescence of Gd³⁺ in Yb/Tm/Gd Doped Y₂O₃ Microcrystals

更新时间：2020-08-12

- UV Upconversion Luminescence of Gd³⁺ in Yb/Tm/Gd Doped Y₂O₃ Microcrystals
- Chinese Journal of Luminescence Vol. 36, Issue 8, Pages: 893-897(2015)
- 作者机构：
  
  1. 长春工业大学化学工程学院, 吉林长春 130012
  2. 长春工业大学材料科学高等研究院, 吉林长春 130012
  3. 长春工业大学基础科学学院,吉林长春,130012
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153608.0893
  CLC： O482.31
- Received：15 May 2015，
  
  Revised：10 June 2015，
  
  Published：03 August 2015
- 稿件说明：
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张鹏, 李大光, 刘世虎等. Gd3+,Tm3+和Yb3+掺杂的Y2O3微晶中Gd3+离子的紫外上转换发光及其增强的研究[J]. 发光学报, 2015,36(8): 893-897

ZHANG Peng, LI Da-guang, LIU Shi-hu etc. UV Upconversion Luminescence of Gd3+ in Yb/Tm/Gd Doped Y2O3 Microcrystals[J]. Chinese Journal of Luminescence, 2015,36(8): 893-897
张鹏, 李大光, 刘世虎等. Gd3+,Tm3+和Yb3+掺杂的Y2O3微晶中Gd3+离子的紫外上转换发光及其增强的研究[J]. 发光学报, 2015,36(8): 893-897 DOI： 10.3788/fgxb20153608.0893.

ZHANG Peng, LI Da-guang, LIU Shi-hu etc. UV Upconversion Luminescence of Gd3+ in Yb/Tm/Gd Doped Y2O3 Microcrystals[J]. Chinese Journal of Luminescence, 2015,36(8): 893-897 DOI： 10.3788/fgxb20153608.0893.

摘要

采用均相沉淀法制备了Y(OH)

微米颗粒

经1 100 ℃焙烧后制备出具有上转换发光性质的Yb

- Tm

-Gd

共掺的Y

微米晶体

讨论了Yb

-Tm

-Gd

在Y

中能量传递过程及壳层对发光强度的影响.980 nm近红外光激发下的上转换光谱表明

在Yb

-Tm

-Gd

共掺Y

体系中

核-壳结构大幅提高了Gd

离子和Tm

离子的上转换发光强度

尤其是样品在紫外发光部分的增强相比于可见和红外光部分更为明显.同时

通过研究Tm

和Gd

在不同波段的发光强度与泵浦功率的关系探讨了氧化物中上转换发光的机制.

Abstract

:Yb/Tm/Gd@Y

microcrystals with core-shell structure were prepared by homogeneous precipitation method and then annealed at high temperature. The microparticles were characterized by transmission electron microscopy (TEM)

X-ray diffraction (XRD)

and luminescent spectra. Upconversion spectra and excitation power dependence indicate that the energy transfer from Tm

to Gd

plays a crucial role in populating the excited states of Gd

. The shortest wavelength of upconversion emissions in Y

matrix is converted from the infrared region. Meanwhile

the core-shell structure greatly improved the upconversion fluorescence intensity of Gd

in Yb

-Tm

-Gd

codoped system.

关键词

Keywords

references

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Yin D, Wang C, Ouyang J, et al. Synthesis of a novel core-shell nanocomposite Ag@SiO2@Lu2O3 :Gd/Yb/Er for large enhancing upconversion luminescence and bioimaging [J]. Acs Appl. Mater. Inter., 2014, 6(21):18480-18488.

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De G, Qin W, Zhang J, et al. Effect of OH－ on the upconversion luminescent efficiency of Y2O3 :Yb3+,Er3+ nanostructures [J]. Solid State Commun., 2006, 137(9):483-487.

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