E7.2 - Sol-Gel based Optical Ammonia Gas Sensor
- Event
- AMA Conferences 2013
2013-05-14 - 2013-05-16
Nürnberg - Band
- Proceedings SENSOR 2013
- Chapter
- E7 - Gas Sensors II
- Author(s)
- S. Widmer, M. Dorrestijn, L. Scherer - Empa, Swiss Federal Laboratories for Material Science and Technology, St. Gallen (Switzerland), E. Constable - University of Basel (Switzerland)
- Pages
- 661 - 663
- DOI
- 10.5162/sensor2013/E7.2
- ISBN
- 978-3-9813484-3-9
- Price
- free
Abstract
State of the art gas sensors usually are hand-held devices. The development of a gas sensor system based on flexible polymer optical fibers, which finally can be integrated into textiles, would increase sensor wearability. As a model system, sol-gels with different mixtures of coumarin and fluorescein were coated on PMMA plates, which were exposed to gaseous ammonia. Significant differences in fluorescence intensity were observed for different dye mixtures. First sensor measurements with dyedoped sol-gel coated PMMA plates showed response to gaseous ammonia.