A1.6 - Numerical Analysis and new formulas on steady step of a new SAW Structure with disappeared layer RR-P3HT in detection DMMP
- Event
- 54th Winter School on Wave and Quantum Acoustics
2026-02-09 - 2026-02-12
Szczyrk (Poland) - Chapter
- Acoustoelectronic Sensors
- Author(s)
- T. Hejczyk - The Academy of Creative Development - the Foundation Marklowice, Marklowice (Poland), J. Wrotniak, P. Powroźnik, W. Jakubik - Silesian University of Technology, Gliwice (Poland)
- Pages
- 16 - 17
- DOI
- 10.5162/WSWQA2026/6
- ISBN
- 978-3-910600-09-6
- Price
- free
Abstract
This document presents the results of numerical analyses of the SAW gas sensor in the steady state. The effect of SAW velocity changes depending on how the surface electrical conductivity of the sensing layer is predicted. The conductivity of roughness sensing layer above the piezoelectric waveguide or quartz depends on the profile of the diffused gas molecule concentration inside the layer. Numerical results for the profile concentration gas DMMP (CAS Number 756-79-6) for layer (RR)-P3HT in the steady state are shown. The main aim of the investigations was to study the thin film interaction with target gases in the SAW sensor configuration based on diffusion equation for polymers. The numerical results based on the code written in Python, are described and analyzed.