A Highly Sensitive and Reliable Strain Sensor Using a Hierarchical 3D and Ordered Network of Carbon Nanotubes

Jeongeun Seo; Tae Jae Lee; Chaehyun Lim; Subeom Lee; Chen Rui; Doyeon Ann; Seung-Beck Lee; Haiwon Lee

doi:10.1002/smll.201401812

A Highly Sensitive and Reliable Strain Sensor Using a Hierarchical 3D and Ordered Network of Carbon Nanotubes

Small. 2015 Jul 1;11(25):2990-4. doi: 10.1002/smll.201401812. Epub 2015 Feb 26.

Authors

Jeongeun Seo¹, Tae Jae Lee², Chaehyun Lim², Subeom Lee¹, Chen Rui¹, Doyeon Ann¹, Seung-Beck Lee³, Haiwon Lee¹

Affiliations

¹ Department of Chemistry, Hanyang University, Seoul, 133-791, South Korea.
² Department of Convergence Nano Science, Hanyang University, Seoul, 133-791, South Korea.
³ Department of Electronic Engineering, Hanyang University, Seoul, 133-791, South Korea.

PMID: 25720850
DOI: 10.1002/smll.201401812

Abstract

A 3D network of single-walled carbon nanotubes embedded in poly-(dimethylsiloxane) is presented as a promising route to the fabrication of a flexible film with ordered and interconnected single-walled carbon nanotubes. This is possible using a simple transfer method of as-grown hierarchical single-walled carbon nanotubes on a Si pillar substrate. This film is used as a highly sensitive strain gauge sensor. This type of network embedded in a polymer film should be applicable to many fields involving mechanically stable and reliable strain sensors.

Keywords: carbon nanotube composite; carbon nanotubes; directional alignment; flexible sensors; strain sensors.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.