Skip to main content

Search Proceedings

Methanol detection by a mwcnt/pedot:pss nanocomposite sensor

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:
  • DOI:
    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:
    2 June 2022 - 3 June 2022