6.2.4 Influence of Flexible Substrate Materials on the Performance of Polymer Composite Gas Sensors
- Event
- 14th International Meeting on Chemical Sensors - IMCS 2012
2012-05-20 - 2012-05-23
Nürnberg/Nuremberg, Germany - Chapter
- 6.2 Flexible substrate sensors
- Author(s)
- T. Kinkeldei, C. Zysset, N. Münzenrieder, G. Tröster - Wearable Computing Lab, Swiss Federal Institute of Technology (ETH) (Switzerland)
- Pages
- 537 - 540
- DOI
- 10.5162/IMCS2012/6.2.4
- ISBN
- 978-3-9813484-2-2
- Price
- free
Abstract
We report on the fabrication of gas sensors on different polymer substrates to evaluate the substrate material influence on the gas sensor performance. For this purpose, we developed a resistive type gas sensor out of a conductive polymer composite material on flexible polymer substrates (PI, PEN, PPS and PEI). We compared the sensors on polymer substrates to a similar one on a glass substrate as ground truth. The exposure to increasing levels of humidity showed an effect on the gas sensing behavior on plastic substrates. At a jump from 0 %RH to 60 %RH, PEI substrates showed the lowest substrate influence with resistance changes of about 0.2%. At the same conditions PEN and PPS substrates showed substrate influences with resistance changes of about 1 %. An exposure to 1000 ppm acetone in dry air showed a similar performance among all substrates.