Methanol detection by a mwcnt/pedot:pss nanocomposite sensor |
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| A. A. Al-Hamry, B. H. Pan, C. T. Lu, D. O.Kanoun |
- 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.
- Keywords:
- MWCNT; PEDOT:PSS; nanocomposites; VOCs sensor; Methanol
- Download:
- IMEKO-TC19-2022-15.pdf
- DOI:
- 10.21014/tc19-2022.15
- Event details
- IMEKO TC:
- TC19
- Event name:
- TC19 Symposium: Metrology on Environmental Instrumentation and Measurements (EnvIMEKO 2022)
- Title:
9th EnvIMEKO Symposium of Environmental Instrumentation and Measurements
- Place:
- La Mans, FRANCE
- Time:
- 02 June 2022 - 03 June 2022