Luminescence and Mechanism of Energy Transfer of Er<SUP>3+</SUP>/Tm<SUP>3+</SUP>-codoped Tellurite Glass

ZHANG Peng-jun; DAI Shi-xun; WANG Yan-ling; XU Tie-feng; NIE Qiu-hua; WANG Xun-si

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Luminescence and Mechanism of Energy Transfer of Er³⁺/Tm³⁺-codoped Tellurite Glass

paper | 更新时间：2020-08-12

- Luminescence and Mechanism of Energy Transfer of Er³⁺/Tm³⁺-codoped Tellurite Glass
- Chinese Journal of Luminescence Vol. 30, Issue 6, Pages: 744-749(2009)
- 作者机构：
  
  宁波大学信息科学与工程学院,浙江宁波,315211
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：01 April 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 December 2009，
  
  Published：30 December 2009
- 稿件说明：
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ZHANG Peng-jun, DAI Shi-xun, WANG Yan-ling, et al. Luminescence and Mechanism of Energy Transfer of Er³⁺/Tm³⁺-codoped Tellurite Glass[J]. Chinese journal of luminescence, 2009, 30(6): 744-749.
DOI：

ZHANG Peng-jun, DAI Shi-xun, WANG Yan-ling, et al. Luminescence and Mechanism of Energy Transfer of Er³⁺/Tm³⁺-codoped Tellurite Glass[J]. Chinese journal of luminescence, 2009, 30(6): 744-749. DOI：

摘要

采用高温熔融法制备了两系列不同掺杂比的Er

/Tm

共掺的碲酸盐玻璃

测试了样品的吸收光谱和在980 nm LD激发下的发光光谱、上转换发光光谱及发光寿命。讨论了Er

与Tm

掺杂浓度对样品光谱性质的影响

离子的掺入会减弱Er

的1.53 μm发光强度

但通过共振能量传递可以获得Tm

的1.8 μm发光

并随着Tm

离子浓度的增加而增强。同时表明Tm

离子的增加会减弱Er

离子在528 nm和545 nm附近的上转换绿光强度

而上转换红光出现了先增强后减弱的现象。研究了Er

/Tm

共掺杂碲酸盐玻璃的能量传递机制与传递效率

分析了Tm

/Er

离子掺杂浓度比对上转换发光的影响。

Abstract

The Er

/Tm

-codoped tellurite glasses were prepared by high-temperature melting. The absorption spectra

fluorescence spectra

upconversion emission

and the fluorescence lifetime of samples were investigated under 980 nm LD excitation. Spectral properties of the samples with different concentration of Er

-Tm

ions were analyzed

the 1.53 μm fluorescence intensity of Er

reduces with increasing Tm

-ions concentration

but the 1.8 mm emission of Tm

increases. The Tm

→

absorption cross-section and Er

13/2

→

15/2

emission cross-section were calculated based on Dexter theory

the energy transfer process from Er

13/2

level to Tm

level can occur. The measured lifetimes of Er

13/2

level was decreased from 2.05 ms to 0.8 ms with increasing the mol fraction of Tm

from 0.1% to 0.5% where Er

mol fraction is fixed at 0.5%

while the energy transfer rate

at first

from Er

to Tm

increases rapidly and then tardily does. The upconversion luminescence of Er

and Er

/Tm

ions doped tellurite glasses was investigated. The green light of 530 nm and 545 nm

and the red light of 657 nm can be observed in Er

doped tellurite glass

moreover the 545 nm light intensity is stronger than the 530 nm light. But the green upconversion emission intensity decreases with Tm

-ions doping

otherwise the red upconversion emission intensity increases firstly and then decreases with increasing Tm

-ions concentration. In addition

the intensity of red light is strongest when the Tm

/Er

concentration ratio is 1/5 approximately.

关键词

Keywords

references

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Luminescence and Mechanism of Energy Transfer of Er3+/Tm3+-codoped Tellurite Glass

DOI：

摘要

Abstract

关键词

Keywords

references

Luminescence and Mechanism of Energy Transfer of Er³⁺/Tm³⁺-codoped Tellurite Glass