Title :
Optical gas sensor based on MgTPP thin film for the detection of alcohol vapors
Author :
Mensing, Johannes ; Kladsomboon, Sumana ; Kerdcharoen, Teerakiat
Author_Institution :
Dept. of Phys., Mahidol Univ., Bangkok
Abstract :
Electronic nose devices are of increasing interest for the quality control of beverage and food processing. Optical gas sensors that require low electrical power are in great need for such devices. Magnesium 5, 10, 15, 20-tetraphenylporphyrin thin film sensors have been fabricated by spin coating onto glass substrates for detecting specific alcoholic volatile organic compounds (VOCs). Responses of the films to various alcohols were monitored by UV/Vis spectroscopy using a homemade measurement setup, which employs a LabVIEW program to control the measuring process.
Keywords :
gas sensors; optical sensors; organic compounds; spin coating; ultraviolet spectra; UV/Vis spectroscopy; alcohol vapor detection; optical gas sensor; spin coating; thin film sensors; Coatings; Electronic noses; Gas detectors; Glass; Magnesium; Optical devices; Optical films; Optical sensors; Quality control; Thin film sensors;
Conference_Titel :
Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology, 2008. ECTI-CON 2008. 5th International Conference on
Conference_Location :
Krabi
Print_ISBN :
978-1-4244-2101-5
Electronic_ISBN :
978-1-4244-2102-2
DOI :
10.1109/ECTICON.2008.4600563
