Issue 11, 2013

Transparent, stretchable, carbon-nanotube-inlaid conductors enabled by standard replication technology for capacitive pressure, strain and touch sensors

Abstract

This paper describes a standard replication approach for preparing transparent elastomeric conductors with single-walled carbon nanotubes (SWCNTs) inlaid just below the surface. The elastic conductors were fabricated by spray coating a SWCNT suspension in chloroform on a fluorinated substrate, followed by the standard replication, casting liquid elastomers like polydimethylsiloxane on the SWCNT film, curing and peeling off the substrate. The replication strategy can produce elastic conductors with a flat or a desirable patterned surface. The resultant elastic conductors had excellent stability under repeated mechanical loading and stretchability up to 300%. It retained conductance even after 10 tape tests. Using the SWCNT-inlaid stretchable conductors as electrodes, elastic capacitors were fabricated using a mask-assisted method. The results showed that these capacitors are good candidates for multi-functional capacitive pressure, strain, and touch sensors.

Graphical abstract: Transparent, stretchable, carbon-nanotube-inlaid conductors enabled by standard replication technology for capacitive pressure, strain and touch sensors

Supplementary files

Article information

Article type
Paper
Submitted
07 1 2013
Accepted
25 1 2013
First published
25 1 2013

J. Mater. Chem. A, 2013,1, 3580-3586

Transparent, stretchable, carbon-nanotube-inlaid conductors enabled by standard replication technology for capacitive pressure, strain and touch sensors

X. Wang, T. Li, J. Adams and J. Yang, J. Mater. Chem. A, 2013, 1, 3580 DOI: 10.1039/C3TA00079F

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