Light Harvesting as a Simple and Versatile Way to Enhance Brightness of Luminescent Sensors

被引：82

作者：

Mayr, Torsten ^{[1
]}

Borisov, Sergey M. ^{[1
]}

Abel, Tobias ^{[1
]}

Enko, Barbara ^{[1
]}

Waich, Kerstin ^{[1
]}

Mistlberger, Guenter ^{[1
]}

Klimant, Ingo ^{[1
]}

机构：

[1] Graz Univ Technol, Inst Analyt Chem & Food Chem, A-8010 Graz, Austria

来源：

ANALYTICAL CHEMISTRY | 2009年 / 81卷 / 15期

基金：

奥地利科学基金会;

关键词：

CHEMICAL SENSORS; FLUORESCENCE; COMPLEXES; AMMONIA; FILMS;

D O I：

10.1021/ac900662x

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The emissive output of indicator dyes in luminescent sensors can be amplified by the addition of antenna dyes with a higher brightness. The highly concentrated antenna dye molecules absorb the excitation light and transfer the energy to an indicator dye. This harvesting of light makes thin sensor layers (thickness <500 nm) and nanometer sized sensor particles with exceptionally high brightness and compatible with the most powerful LEDs available. The performance of sensor layers of similar to 250 nm thickness employing light harvesting was investigated and compared with established sensors. The principle is demonstrated for oxygen and ammonia sensors. An overview of possible application of light harvesting to various reagent mediated optical sensing schemes is given.

引用

页码：6541 / 6545

页数：5

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