Miniaturized remission sensor for carbon dioxide detection

Recently, optical sensors for detection of carbon dioxide (CO2) have been explored for variety of applications in chemistry, industry, and medicine. This paper deals with the development of a planar optical remission sensor employing a dye immobilized in a polymer layer designed for gaseous CO2 dete...

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Bibliographic Details
Published in:Journal of physics. Conference series 2010-02, Vol.206 (1), p.012016
Main Authors: Martan, T, Will, M
Format: Article
Language:English
Subjects:
Carbon dioxide
Chemical reactions
Color
Dyes
Optical measuring instruments
Physics
PIN diodes
Polymers
Response time
Sensors
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Summary:Recently, optical sensors for detection of carbon dioxide (CO2) have been explored for variety of applications in chemistry, industry, and medicine. This paper deals with the development of a planar optical remission sensor employing a dye immobilized in a polymer layer designed for gaseous CO2 detection. The principle of CO2 detection was based on colour changes of Tetraethylammonium Cresol red immobilized in a special composed polymer layer that was irradiated by LED diodes. Absorption properties of the dye were changed due to its chemical reaction with CO2 and corresponding colour changes were detected by PIN diodes. These changes were analyzed by using a PC-controlled board connected by USB. The sensitivity, response time, and the detection limit of the remission sensor were characterized.
ISSN:1742-6596
1742-6588
1742-6596
DOI:10.1088/1742-6596/206/1/012016