Hydrostatic pressure sensor based on carbon sphere - Polyvinyl alcohol composites

Wagner S. MacHado, Patrick L. Athayde, Messai A. Mamo, Willem A.L. Van Otterlo, Neil J. Coville, Ivo A. Hümmelgen

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)

Abstract

We report on the preparation of hydrostatic pressure sensors, based on carbon sphere-polyvinyl alcohol composites deposited onto interdigitated electrodes, determining the pressure dependence of the conductance and capacitance of the devices. For these devices, we used carbon spheres with average diameter of 124 ± 13 nm at concentrations of 20%, 30% and 40%. The highest relative variation of conductance (0.69% kPa-1) and capacitance (0.24% kPa-1) was obtained using the composite with 30% carbon spheres.

Original languageEnglish
Pages (from-to)1736-1739
Number of pages4
JournalOrganic Electronics
Volume11
Issue number11
DOIs
Publication statusPublished - Nov 2010
Externally publishedYes

Keywords

  • Carbon spheres
  • Hydrostatic pressure sensor
  • Pressure sensor

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry
  • Electrical and Electronic Engineering

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