Hydrostatic pressure sensor based on carbon sphere – polyvinyl alcohol composites

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 di...

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Published inOrganic electronics Vol. 11; no. 11; pp. 1736 - 1739
Main Authors Machado, Wagner S., Athayde, Patrick L., Mamo, Messai A., van Otterlo, Willem A.L., Coville, Neil J., Hümmelgen, Ivo A.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.11.2010
Elsevier
Subjects
Applied sciences
Carbon spheres
Electrical engineering. Electrical power engineering
Exact sciences and technology
General equipment and techniques
Hydrostatic pressure sensor
Instruments, apparatus, components and techniques common to several branches of physics and astronomy
Materials
Physics
Pressure sensor
Sensors (chemical, optical, electrical, movement, gas, etc.); remote sensing
Carbon spheres
Hydrostatic pressure sensor
Pressure sensor
Pressure dependence
Sphere
Polyvinylalcohol
Hydrostatic pressure
Measurement sensor
Capacitance
Carbon
Composite material
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Summary: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.
ISSN:1566-1199
1878-5530
DOI:10.1016/j.orgel.2010.07.028