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Issue 43, 2013
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Transparent graphene films with a tunable piezoresistive response

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Abstract

We demonstrate a graphene-coated polymer film as a transparent piezoresistive strain sensor. Strain sensitivity was tuned by controlling the thickness and density of the graphene layer as well as the adhesion force between graphene and the substrate. Chemically reducing the graphene oxide, thereby maximizing its adhesion to the substrate, while minimizing the coating density and thickness resulted in excellent transparency and high gauge factors. The fabrication method presented allows design optimization of transparent, high-performance, and sensitivity-tunable piezoresistive sensors, which can make inroads into such applications as wide-area strain sensors, self-sensing flexible electronics, and intelligent structural health monitoring.

Graphical abstract: Transparent graphene films with a tunable piezoresistive response

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Publication details

The article was received on 18 Jun 2013, accepted on 05 Sep 2013 and first published on 06 Sep 2013


Article type: Paper
DOI: 10.1039/C3TC31177E
Citation: J. Mater. Chem. C, 2013,1, 7208-7214
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    Transparent graphene films with a tunable piezoresistive response

    S. Hwang, H. Ahn, J. Yoon, J. Jang and Y. Park, J. Mater. Chem. C, 2013, 1, 7208
    DOI: 10.1039/C3TC31177E

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