Hydrostatic pressure sensors based on carbon spheres dispersed in polyvinyl alcohol prepared using hexadecyltrimethylammonium bromide as surfactant and water as solvent

Rafael Rodrigues; Messai A. Mamo; Neil J. Coville; Ivo A. Hümmelgen

doi:10.1088/2053-1591/1/1/015605

Hydrostatic pressure sensors based on carbon spheres dispersed in polyvinyl alcohol prepared using hexadecyltrimethylammonium bromide as surfactant and water as solvent

Rafael Rodrigues, Messai A. Mamo, Neil J. Coville, Ivo A. Hümmelgen

Chemical Sciences

Research output: Contribution to journal › Article › peer-review

8 Citations (Scopus)

Abstract

We report on hydrostatic pressure sensors based on carbon spheres-polyvinyl alcohol composites prepared in aqueous medium. The carbon spheres were dispersed in water applying a surfactant (hexadecyltrimethylammonium bromide) and deposited onto interdigitated electrodes of tin. The pressure dependence of the conductance of the devices is investigated. An almost linear behavior of the sensitivity of 6.8% between 90-135 kPa is observed for the composite prepared from a solution of 15 mg mL^-1 of undoped-carbon spheres, representing a significant improvement with respect to devices based on composites with non-dispersed carbon spheres.

Original language	English
Article number	015605
Journal	Materials Research Express
Volume	1
Issue number	1
DOIs	https://doi.org/10.1088/2053-1591/1/1/015605
Publication status	Published - Mar 2014

Keywords

Carbon sphere
Carbon sphere composites
Dispersion
Pressure sensors

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Surfaces, Coatings and Films
Polymers and Plastics
Metals and Alloys

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abstract = "We report on hydrostatic pressure sensors based on carbon spheres-polyvinyl alcohol composites prepared in aqueous medium. The carbon spheres were dispersed in water applying a surfactant (hexadecyltrimethylammonium bromide) and deposited onto interdigitated electrodes of tin. The pressure dependence of the conductance of the devices is investigated. An almost linear behavior of the sensitivity of 6.8% between 90-135 kPa is observed for the composite prepared from a solution of 15 mg mL-1 of undoped-carbon spheres, representing a significant improvement with respect to devices based on composites with non-dispersed carbon spheres.",

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AU - Mamo, Messai A.

AU - Coville, Neil J.

AU - Hümmelgen, Ivo A.

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AB - We report on hydrostatic pressure sensors based on carbon spheres-polyvinyl alcohol composites prepared in aqueous medium. The carbon spheres were dispersed in water applying a surfactant (hexadecyltrimethylammonium bromide) and deposited onto interdigitated electrodes of tin. The pressure dependence of the conductance of the devices is investigated. An almost linear behavior of the sensitivity of 6.8% between 90-135 kPa is observed for the composite prepared from a solution of 15 mg mL-1 of undoped-carbon spheres, representing a significant improvement with respect to devices based on composites with non-dispersed carbon spheres.

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KW - Dispersion

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Hydrostatic pressure sensors based on carbon spheres dispersed in polyvinyl alcohol prepared using hexadecyltrimethylammonium bromide as surfactant and water as solvent

Abstract

Keywords

ASJC Scopus subject areas

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