染料掺杂聚合物薄膜的光谱下转换研究

何磊; 李润华; 周玲; 陈钰琦

doi:10.3788/fgxb20143508.0917

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染料掺杂聚合物薄膜的光谱下转换研究

材料合成及性能 | 更新时间：2020-08-12

- 染料掺杂聚合物薄膜的光谱下转换研究
- Spectral Down-conversion of Dye-doped Polymer Films
- 发光学报 2014年35卷第8期页码：917-921
- 作者机构：
  
  华南理工大学理学院物理系,广东广州,510641
- 作者简介：
- 基金信息：
  
  国家重点基础研究发展计划（973）（2012CB921900）();国家自然科学基金（11274123，11304100）();华南理工大学中央高校基本科研业务费（20
- DOI：10.3788/fgxb20143508.0917
  中图分类号： O433
- 收稿日期：2014-04-24，
  
  修回日期：2014-05-13，
  
  纸质出版日期：2014-08-03
- 稿件说明：
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何磊, 李润华, 周玲等. 染料掺杂聚合物薄膜的光谱下转换研究[J]. 发光学报, 2014,35(8): 917-921

HE Lei, LI Run-hua, ZHOU Ling etc. Spectral Down-conversion of Dye-doped Polymer Films[J]. Chinese Journal of Luminescence, 2014,35(8): 917-921
何磊, 李润华, 周玲等. 染料掺杂聚合物薄膜的光谱下转换研究[J]. 发光学报, 2014,35(8): 917-921 DOI： 10.3788/fgxb20143508.0917.

HE Lei, LI Run-hua, ZHOU Ling etc. Spectral Down-conversion of Dye-doped Polymer Films[J]. Chinese Journal of Luminescence, 2014,35(8): 917-921 DOI： 10.3788/fgxb20143508.0917.

摘要

在玻璃基片表面制作了Coumarin 500、Coumarin 540和Rhodamine 6G 3种染料掺杂的聚合物薄膜，并以市售LED灯和氙灯为光源，实验研究了单一染料掺杂和混合染料掺杂的聚合物薄膜的吸收光谱、荧光光谱及其光谱下转换的特征。研究结果表明：这种多染料掺杂的聚合物薄膜能够吸收350~550 nm波长范围内的光子并将其转换至波长为580 nm左右的光子。在一定的浓度范围内，较高的染料浓度能够获得较高的下转换光子输出。由于Nd

/Yb

共掺玻璃中Nd

离子在 580 nm 附近有一个较强的吸收峰，这种染料掺杂聚合物薄膜的光谱下转换有助于提高Nd

/Yb

共掺玻璃对太阳光中蓝绿光的吸收并通过共振能量转移激发Yb

离子的近红外发光，对提高单晶硅太阳能电池的综合光伏转换效率有潜在的应用价值。

Abstract

Polymer films doped by Coumarin 500

Coumarin 540 and Rhodamine 6G dyes were fabricated on glass. The absorption spectra

fluorescence spectra and down-conversion characteristics of these films were experimentally studied using LED and xenon lamps as illumination sources. The photons from 350 nm to 550 nm can be down-converted to photons of 580 nm by these dye-doped polymer films. Higher dopant concentrations within certain range

more photons can be down-converted. Since Nd

in Nd

/Yb

co-doped glass has a strong absorption band around 580 nm

these dye-doped polymer films are helpful to enhance absorption of blue and green light and convert them to near infrared emission of Yb

through resonance energy transfer. These films can be potentially used to improve the compositive photovoltaic conversion efficiency of crystalline silicon solar cells.

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Keywords

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