Undoped, nitrogen-doped and boron-doped multiwalled carbon nanotube/poly(vinyl alcohol) composite as active layer in simple hydrostatic pressure sensors

Messai A. Mamo; Alan O. Sustaita; Zikhona N. Tetana; Neil J. Coville; Ivo A. Hümmelgen

doi:10.1007/s10854-013-1352-6

Undoped, nitrogen-doped and boron-doped multiwalled carbon nanotube/poly(vinyl alcohol) composite as active layer in simple hydrostatic pressure sensors

Messai A. Mamo, Alan O. Sustaita, Zikhona N. Tetana, Neil J. Coville, Ivo A. Hümmelgen

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

6 Citations (Scopus)

Abstract

We report on hydrostatic pressure sensors prepared using 10 % w/w multiwalled carbon nanotube (MWCNT)/poly(vinyl alcohol) composites. Three types of carbon nanotubes were used in the composites: undoped MWCNTs, nitrogen-doped MWCNTs and boron-doped MWCNTs (B-MWCNTs). The sensor response was tested using an alternating current input, measuring the capacitance and conductance outputs. The sensors based on the three composites show a linear capacitance and conductance sensitivity pressure dependence in the range 50-120 kPa, but a higher sensitivity to pressure dependence above this interval. The highest angular coefficient of the sensitivity, which reached 0.092 kPa^-1, was observed for the capacitance sensitivity of the B-MWCNT based composite.

Original language	English
Pages (from-to)	3995-4000
Number of pages	6
Journal	Journal of Materials Science: Materials in Electronics
Volume	24
Issue number	10
DOIs	https://doi.org/10.1007/s10854-013-1352-6
Publication status	Published - Oct 2013
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1007/s10854-013-1352-6

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title = "Undoped, nitrogen-doped and boron-doped multiwalled carbon nanotube/poly(vinyl alcohol) composite as active layer in simple hydrostatic pressure sensors",

abstract = "We report on hydrostatic pressure sensors prepared using 10 % w/w multiwalled carbon nanotube (MWCNT)/poly(vinyl alcohol) composites. Three types of carbon nanotubes were used in the composites: undoped MWCNTs, nitrogen-doped MWCNTs and boron-doped MWCNTs (B-MWCNTs). The sensor response was tested using an alternating current input, measuring the capacitance and conductance outputs. The sensors based on the three composites show a linear capacitance and conductance sensitivity pressure dependence in the range 50-120 kPa, but a higher sensitivity to pressure dependence above this interval. The highest angular coefficient of the sensitivity, which reached 0.092 kPa-1, was observed for the capacitance sensitivity of the B-MWCNT based composite.",

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Undoped, nitrogen-doped and boron-doped multiwalled carbon nanotube/poly(vinyl alcohol) composite as active layer in simple hydrostatic pressure sensors. / Mamo, Messai A.; Sustaita, Alan O.; Tetana, Zikhona N. et al.
In: Journal of Materials Science: Materials in Electronics, Vol. 24, No. 10, 10.2013, p. 3995-4000.

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

TY - JOUR

T1 - Undoped, nitrogen-doped and boron-doped multiwalled carbon nanotube/poly(vinyl alcohol) composite as active layer in simple hydrostatic pressure sensors

AU - Mamo, Messai A.

AU - Sustaita, Alan O.

AU - Tetana, Zikhona N.

AU - Coville, Neil J.

AU - Hümmelgen, Ivo A.

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AB - We report on hydrostatic pressure sensors prepared using 10 % w/w multiwalled carbon nanotube (MWCNT)/poly(vinyl alcohol) composites. Three types of carbon nanotubes were used in the composites: undoped MWCNTs, nitrogen-doped MWCNTs and boron-doped MWCNTs (B-MWCNTs). The sensor response was tested using an alternating current input, measuring the capacitance and conductance outputs. The sensors based on the three composites show a linear capacitance and conductance sensitivity pressure dependence in the range 50-120 kPa, but a higher sensitivity to pressure dependence above this interval. The highest angular coefficient of the sensitivity, which reached 0.092 kPa-1, was observed for the capacitance sensitivity of the B-MWCNT based composite.

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Undoped, nitrogen-doped and boron-doped multiwalled carbon nanotube/poly(vinyl alcohol) composite as active layer in simple hydrostatic pressure sensors

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