Methanol detection by a mwcnt/pedot:pss nanocomposite sensor
Abstract
In this paper, the sensing properties of multi-walled carbon nanotubes (MWCNT) and conductive polymer mixture poly(3,4- ethylenedioxythiophene) polystyrene sulfonate (PEDOT:PSS) nanocomposites towards methanol vapor were measured at room temperature. The proposed MWCNT/PEDOT:PSS sensors were fabricated by coating different volumes of the dispersions on the polyethylene terephthalate (PET) flexible substrate to produce different film thicknesses. The substrate was already coated with screen-printed silver interdigitated electrodes. Compared with MWCNT films, the proposed composite films significantly showed a higher response toward methanol vapor. The thinnest film with only 5 µL drop casted dispersion has shown the best response, 27.62 % change in resistance at 70 ppm.
Event details
- Event
- TC19 Symposium: Metrology on Environmental Instrumentation and Measurements (EnvIMEKO 2022)
- Technical Committee
- TC19
- envimeko.lemans.2022@gmail.com
- Place
- La Mans, FRANCE
- Time
- 2 June 2022 - 3 June 2022
- Website
- https://easychair.org/cfp/EnvIMEKO_2022