Study of piezoresistance effect of carbon nanotube-PDMS composite materials for nanosensors

Author

Lu, Junyong ; Lu, Miao ; Bermak, Amine ; Lee, Yi-Kuen

Author_Institution

Dept. of Mech. Eng., Hong Kong Univ. of Sci. & Technol., Kowloon

fYear

2007

fDate

2-5 Aug. 2007

Firstpage

1240

Lastpage

1243

Abstract

Samples of novel nanocomposites of multiwalled carbon nanotube and poly (dimethylsiloxane), i.e., CNT-PDMS, at different filler concentrations are prepared. The mechanical/electrical and piezoresistance properties of these nanomaterials are studied in detail. The gauge factor (GF) of this nanocomposite, dependent on the content of CNT, ranges from 1.38 to 12.4. Since the CNT-PDMS can be easily used as a novel piezoresistor using low-cost MEMS technology, this nanomaterial has decent potential in nanosensors and PDMS-based microfluidic systems.

Keywords

carbon nanotubes; filled polymers; microsensors; nanocomposites; nanotechnology; piezoresistance; C; MEMS technology; filler concentrations; gauge factor; microfluidic systems; multiwalled carbon nanotube; nanocomposites; nanosensors; piezoresistance; piezoresistor; poly(dimethylsiloxane); Carbon nanotubes; Composite materials; Conductivity; Electric resistance; Electrodes; Mechanical factors; Micromechanical devices; Nanocomposites; Nanostructured materials; Piezoresistance; Carbon nanotube; nanocomposite; nanosensor; piezoresistance;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2007. IEEE-NANO 2007. 7th IEEE Conference on

Conference_Location

Hong Kong

Print_ISBN

978-1-4244-0607-4

Electronic_ISBN

978-1-4244-0608-1

Type

conf

DOI

10.1109/NANO.2007.4601407

Filename

4601407