Controllable fabrication of carbon nanotube-polymer hybrid thin film for strain sensing

Xiaohui Song, Sheng Liu, Zhiyin Gan, Qiang Lv, Hui Cao, Han Yan

Research output: Contribution to journalArticlepeer-review

103 Citations (Scopus)

Abstract

A strain sensing material based on carbon nanotubes-polymer hybrid film has been fabricated by the vacuum filtration and poly(dimethylsiloxane) (PDMS) molding transfer methods. The density and thickness of the film is tuned by simply controlling the volume of dilute suspension filtered through the membrane. These composites are resilient under large strain and there is a wide linear range of resistance-strain dependence. We demonstrate that the thin films with thicker CNTs networks exhibit more significant resistance-strain sensitivity under the same stain and the strain sensing material shows reproducible resistance-strain sensitivity depending only on the initial CNTs suspension volume. It may be possible to fabricate strain sensing material in large volume for future smart device applications.

Original languageEnglish
Pages (from-to)2330-2333
Number of pages4
JournalMicroelectronic Engineering
Volume86
Issue number11
Early online date19 Apr 2009
DOIs
Publication statusPublished - 1 Nov 2009
Externally publishedYes

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