Preparation and Performance of Continuous Tunable Broadband Fluorescent Glass

Chang CHEN; Qi ZHANG; Da-xiao WANG; Meng-lei SU; Wei WEI

doi:10.37188/CJL.20210136

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Preparation and Performance of Continuous Tunable Broadband Fluorescent Glass

Synthesis and Properties of Materials | 更新时间：2021-09-13

- Preparation and Performance of Continuous Tunable Broadband Fluorescent Glass
  增强出版
- Chinese Journal of Luminescence Vol. 42, Issue 9, Pages: 1412-1418(2021)
- 作者机构：
  
  南京邮电大学　电子与光学工程学院，　微电子院，江苏　南京　 210023
- 作者简介：
- 基金信息：
  
  the National Key Research and Development Program of China(2016YFF0100900)
- DOI：10.37188/CJL.20210136
  CLC： O482.31
- Received：20 April 2021，
  
  Revised：21 May 2021，
  
  Published：01 September 2021
- 稿件说明：
移动端阅览
Chang CHEN, Qi ZHANG, Da-xiao WANG, et al. Preparation and Performance of Continuous Tunable Broadband Fluorescent Glass[J]. Chinese journal of luminescence, 2021, 42(9): 1412-1418.
DOI：

Chang CHEN, Qi ZHANG, Da-xiao WANG, et al. Preparation and Performance of Continuous Tunable Broadband Fluorescent Glass[J]. Chinese journal of luminescence, 2021, 42(9): 1412-1418. DOI： 10.37188/CJL.20210136.

摘要

宽带荧光转换发光二极管(LED)用荧光玻璃具有良好的热稳定性和光学性质，可以避免传统的有机树脂封装荧光粉方案中存在的热稳定性差和重吸收问题，提高LED的使用寿命和发光效率。本文采用熔融淬冷法制备了一种连续可调宽光谱的Ce

/Mn

共掺氟硅酸盐玻璃，并对其发光性能进行了研究。为了探究Ce

/Mn

之间的能量传递，分别制备了掺Ce

、掺Mn

氟硅酸盐玻璃作为比对。结果表明，在紫外光激发下，可以观察到Ce

对Mn

发光的敏化现象，分别由掺Ce

荧光玻璃的蓝光发射和掺Mn

荧光玻璃的黄色发射，拓展为Ce

/Mn

共掺荧光玻璃的白光宽光谱发射，范围为380~780 nm；对比掺Mn

的荧光玻璃，Ce

/Mn

共掺荧光玻璃中Mn

的发光强度提升了3倍；随着Mn

浓度从0.8%增加到2.0%

向Mn

的能量传递效率从12.5%提升至24.2%。此外，通过调节紫外激发波长(353~369 nm)，实现了从蓝光到红光区域的连续可调宽带发射。这种新型Ce

/Mn

共掺玻璃有望替代目前常规的多组分荧光粉LED光源应用于分光光度计、荧光光谱仪等光学领域。

Abstract

The fluorescent glasses for broadband phosphor-converted light-emitting diodes(pc-LED) have good thermal stability and optical properties

which can avoid the poor stability and reabsorption problems of the traditional style of multi-component phosphors dispersed in silicone resin

and improve the service life and luminous efficiency of pc-LED. In this work

a single-component Ce

/Mn

co-doped fluorosilicate glass with continuous tunable broadband emission was prepared by melt-quenching method

and luminescence properties were studied. In order to explore the energy transfer from Ce

to Mn

doped and Mn

doped fluorosilicate glass were prepared. The experimental results show that Ce

can strongly sensitize the luminescence of Mn

under the excitation of UV light. The blue emission of Ce

doped glass and the yellow emission of Mn

doped glass were extended to broadband emission(380-780 nm) of white light with Ce

/Mn

co-doped glass. Compared with Mn

doped glass

the luminescence intensity of Mn

in Ce

/Mn

co-doped glass was increased by 3 times. With the concentration of Mn

increasing from 0.8% to 2.0%

the energy transfer efficiency from Ce

to Mn

increases from 12.5% to 24.2%. Continuous tunable broadband emission from blue to red can be obtained by controlling the excitation wavelength. This new type of single-component Ce

/Mn

co-doped glass is expected to replace the current conventional multi-component phosphor for pc-LED in optical spectroscopy including spectrophotometer

fluorescence spectrometer.

关键词

Keywords

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