Modelling of chemical surface acoustic wave sensors and comparative analysis of new sensing materials
Article first published online: 4 DEC 2012
Copyright © 2012 John Wiley & Sons, Ltd.
International Journal of Numerical Modelling: Electronic Networks, Devices and Fields
Volume 26, Issue 3, pages 263–274, May/June 2013
How to Cite
Hribšek, M. F., Ristić, S. S., Radojković, B. M., Filipović, Z. Lj. and Ristić, O. R. (2013), Modelling of chemical surface acoustic wave sensors and comparative analysis of new sensing materials. Int. J. Numer. Model., 26: 263–274. doi: 10.1002/jnm.1870
- Issue published online: 8 APR 2013
- Article first published online: 4 DEC 2012
- Manuscript Accepted: 8 SEP 2012
- Manuscript Revised: 4 JUN 2012
- Manuscript Received: 18 JAN 2012
- Ministry of Education and Science of Serbia. Grant Number: TR 34022 and TR 35046
- SAW gas sensors;
- Teflon AF2400;
Comparative analysis of different, new gas sensing materials in surface acoustic wave chemical sensors is presented. Different gas sensing materials as polyaniline (PANI), Teflon AF 2400, polyisobutylene (PIB), polyepichlorohydrin (PECH) are considered. They are chosen according to the type of gas to be detected and the desired accuracy: Teflon AF 2400 thin film for the detection of CO2, PANI nanocomposites film that belongs to the group of conductive polymers for the detection of CO, NO2 and phosgene (COCl2), and PECH and PIB for the detection of dichloromethane (CH2Cl2, DCM). In the analysis, the simple and useful method of the complete analyses of gas chemical sensors is used. The method is based on the electrical equivalent circuit of the surface acoustic wave sensor. The method is very efficient and can be used for the optimal design of CO2 sensors. The results are compared with those presented in public literature and good agreement is obtained, demonstrating the validity of modelling. Copyright © 2012 John Wiley & Sons, Ltd.