Crystallization of Ag Nanocrystallites and Luminescence Properties in Er3+/Yb3+ Co-doped TeO2-WO3-La2O3 Glasses

ZHANG Shuo; LIN Jian; ZHANG Wen-jun

doi:10.3788/fgxb20153603.0305

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Crystallization of Ag Nanocrystallites and Luminescence Properties in Er³⁺/Yb³⁺ Co-doped TeO₂-WO₃-La₂O₃ Glasses

更新时间：2020-08-12

- Crystallization of Ag Nanocrystallites and Luminescence Properties in Er³⁺/Yb³⁺ Co-doped TeO₂-WO₃-La₂O₃ Glasses
- Chinese Journal of Luminescence Vol. 36, Issue 3, Pages: 305-311(2015)
- 作者机构：
  
  1. 同济大学材料科学与工程学院上海,201804
  2. 同济大学先进土木工程材料教育部重点实验室上海,200092
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20153603.0305
  CLC： O482.31
- Received：08 December 2014，
  
  Revised：18 December 2014，
  
  Published Online：26 December 2014，
  
  Published：03 March 2015
- 稿件说明：
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张硕, 林健, 张文俊. Er3+/Yb3+共掺TeO2-WO3-La2O3玻璃中银纳米晶的析出及发光性能[J]. 发光学报, 2015,36(3): 305-311

ZHANG Shuo, LIN Jian, ZHANG Wen-jun. Crystallization of Ag Nanocrystallites and Luminescence Properties in Er3+/Yb3+ Co-doped TeO2-WO3-La2O3 Glasses[J]. Chinese Journal of Luminescence, 2015,36(3): 305-311
张硕, 林健, 张文俊. Er3+/Yb3+共掺TeO2-WO3-La2O3玻璃中银纳米晶的析出及发光性能[J]. 发光学报, 2015,36(3): 305-311 DOI： 10.3788/fgxb20153603.0305.

ZHANG Shuo, LIN Jian, ZHANG Wen-jun. Crystallization of Ag Nanocrystallites and Luminescence Properties in Er3+/Yb3+ Co-doped TeO2-WO3-La2O3 Glasses[J]. Chinese Journal of Luminescence, 2015,36(3): 305-311 DOI： 10.3788/fgxb20153603.0305.

摘要

采用熔融冷却法制备了Er

/Yb

共掺TeO

-WO

-La

-AgNO

玻璃

通过热处理获得了透明含银纳米晶的碲酸盐系统玻璃。测试了不同热处理条件后所得玻璃样品的透过率及受激发射光谱

并使用高分辨透射电镜表征玻璃中的银纳米晶

分析了荧光增强机理。经过390 ℃热处理15 min后

玻璃中析出了银纳米晶。玻璃在银纳米晶引入前后的上转换绿、红光均为双光子吸收。银纳米晶产生的局域电场增强使得含银纳米晶玻璃的上转换发光和近红外发光都有增强

其中上转换绿光强度是不掺AgNO

玻璃的5倍。

Abstract

TeO

-WO

-La

-AgNO

glass samples were prepared

via

melt-quenching method

and the transparent tellurite glasses with Ag nanocrystallites were obtained by heat treatment. The transmittance spectra and stimulated emission spectra of the glass samples with different heat-treatment systems were measured. Ag nanocrystallites in glasses were examined by HR-TEM images

and the luminescence enhancement mechanism was also analyzed. The results show that Ag nanocrystallites are crystallized by heat treatment under 390 ℃ for 15 min. The two-photon absorption process of green and red light in glass does not change after Ag nanocrystallites are introduced. Because of the enhanced local electric field generated by Ag nanocrystallites

the up-conversion and near-infrared luminescence of Ag-contained glass increase

of which the green light intensity of the glass containing Ag nanocrystallites is 5 times as much as that of glass without Ag nanocrystallites.

关键词

Keywords

references

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