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Issue 3, 2013
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A novel flexible capacitive touch pad based on graphene oxide film

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Abstract

Recently, graphene oxide (GO) supercapacitors with ultra-high energy densities have received significant attention. In addition to energy storage, GO capacitors might also have broad applications in renewable energy engineering, such as vibration and sound energy harvesting. Here, we experimentally create a macroscopic flexible capacitive touch pad based on GO film. An obvious touch “ON” to “OFF” voltage ratio up to ∼60 has been observed. Moreover, we tested the capacitor structure on both flat and curved surfaces and it showed high response sensitivity under fast touch rates. Collectively, our results raise the exciting prospect that the realization of macroscopic flexible keyboards with large-area graphene based materials is technologically feasible, which may open up important applications in control and interface design for solar cells, speakers, supercapacitors, batteries and MEMS systems.

Graphical abstract: A novel flexible capacitive touch pad based on graphene oxide film

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Publication details

The article was received on 02 Nov 2012, accepted on 30 Nov 2012 and first published on 04 Dec 2012


Article type: Communication
DOI: 10.1039/C2NR33455K
Citation: Nanoscale, 2013,5, 890-894
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    A novel flexible capacitive touch pad based on graphene oxide film

    H. Tian, Y. Yang, D. Xie, T. Ren, Y. Shu, C. Zhou, H. Sun, X. Liu and C. Zhang, Nanoscale, 2013, 5, 890
    DOI: 10.1039/C2NR33455K

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