Preparation and Luminescence Properties of Eu<sup>3+</sup> Doped Germanate Glass Ceramics Containing CaF<sub>2</sub> Nanocrystals

Li-hui HUANG; Jing-tao ZHAO; Shi-long ZHAO; Shi-qing XU

doi:10.37188/CJL.20200244

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Preparation and Luminescence Properties of Eu³⁺ Doped Germanate Glass Ceramics Containing CaF₂ Nanocrystals

Synthesis and Properties of Materials | 更新时间：2020-10-12

- Preparation and Luminescence Properties of Eu³⁺ Doped Germanate Glass Ceramics Containing CaF₂ Nanocrystals
- Chinese Journal of Luminescence Vol. 41, Issue 10, Pages: 1234-1240(2020)
- 作者机构：
  
  中国计量大学光学与电子科技学院, 光电材料与器件研究院, 浙江省稀土光电材料与器件重点实验室, 浙江杭州 310018
- 作者简介：
- 基金信息：
  
  Zhejiang Provincial Natural Science Foundation of China
- DOI：10.37188/CJL.20200244
  CLC： O482.31
- Received：15 August 2020，
  
  Accepted：03 September 2020，
  
  Published：2020-10
- 稿件说明：
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Li-hui HUANG, Jing-tao ZHAO, Shi-long ZHAO, et al. Preparation and Luminescence Properties of Eu³⁺ Doped Germanate Glass Ceramics Containing CaF₂ Nanocrystals[J]. Chinese journal of luminescence, 2020, 41(10): 1234-1240.
DOI：

Li-hui HUANG, Jing-tao ZHAO, Shi-long ZHAO, et al. Preparation and Luminescence Properties of Eu³⁺ Doped Germanate Glass Ceramics Containing CaF₂ Nanocrystals[J]. Chinese journal of luminescence, 2020, 41(10): 1234-1240. DOI： 10.37188/CJL.20200244.

摘要

通过高温熔融淬冷法制备了Eu

掺杂锗酸盐玻璃，测试了393 nm光激发下不同Eu

掺杂浓度锗酸盐玻璃的发光性质，结果表明Eu

的最佳掺杂浓度为4%。对4% Eu

掺杂锗酸盐玻璃进行热处理得到Eu

掺杂含CaF

纳米晶的透明锗酸盐微晶玻璃。微晶玻璃的XRD结果表明，玻璃中析出相为纯的立方相CaF

，不含其他杂相，其晶粒尺寸约为13~19 nm。在393 nm紫外光激发下，微晶玻璃的发光强度随着热处理温度与热处理时间的增加而显著增强。同时，与基础玻璃相比，微晶玻璃在X射线激发下红光也得到显著增强。结果表明，Eu

掺杂含CaF

纳米晶锗酸盐微晶玻璃在X射线探测领域具有潜在的应用前景。

Abstract

doped germanate glasses were prepared by melting and quenching at high temperature. The luminescence properties of germanate glasses with different concentrations of Eu

under the excitation of 393 nm light were measured. The results show that the optimal concentration of Eu

is 4%. Eu

doped transparent germanate glass ceramics containing CaF

nanocrystals were prepared by heat treatment on 4% Eu

doped germanate glasses. The XRD results of the glass ceramics show that the precipitated phase is pure cubic CaF

without other impurity phases

and the grain size is about 13 ~ 19 nm. Under the excitation of 393 nm light

the luminescence intensity of glass ceramics increases with the increment of heat treatment temperature and time. At the same time

compared with germanate glass

the red emission of germanate glass ceramics is significantly enhanced under X-ray excitation. The results show that Eu

doped germanate glass ceramics containing CaF

nanocrystals have potential application prospects in the field of X-ray detection.

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references

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Preparation and Luminescence Properties of Eu3+ Doped Germanate Glass Ceramics Containing CaF2 Nanocrystals

DOI：10.37188/CJL.20200244

摘要

Abstract

关键词

Keywords

references

Preparation and Luminescence Properties of Eu³⁺ Doped Germanate Glass Ceramics Containing CaF₂ Nanocrystals