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Nanomaterials 2016, 6(8), 147; doi:10.3390/nano6080147

Flexible Textile-Based Organic Transistors Using Graphene/Ag Nanoparticle Electrode

1
C-Industry Incubation Research Center, Korea Research Institute of Chemical Technology (KRICT), Daejeon 34114, Korea
2
Composites Research Division, Korea Institute of Materials Science (KIMS), Changwon 51508, Korea
These authors are contributed equally.
*
Authors to whom correspondence should be addressed.
Academic Editor: Thomas Nann
Received: 1 June 2016 / Revised: 1 July 2016 / Accepted: 29 July 2016 / Published: 16 August 2016
(This article belongs to the Special Issue Textiles Nanotechnology)
View Full-Text   |   Download PDF [3844 KB, uploaded 16 August 2016]   |  

Abstract

Highly flexible and electrically-conductive multifunctional textiles are desirable for use in wearable electronic applications. In this study, we fabricated multifunctional textile composites by vacuum filtration and wet-transfer of graphene oxide films on a flexible polyethylene terephthalate (PET) textile in association with embedding Ag nanoparticles (AgNPs) to improve the electrical conductivity. A flexible organic transistor can be developed by direct transfer of a dielectric/semiconducting double layer on the graphene/AgNP textile composite, where the textile composite was used as both flexible substrate and conductive gate electrode. The thermal treatment of a textile-based transistor enhanced the electrical performance (mobility = 7.2 cm2·V−1·s−1, on/off current ratio = 4 × 105, and threshold voltage = −1.1 V) due to the improvement of interfacial properties between the conductive textile electrode and the ion-gel dielectric layer. Furthermore, the textile transistors exhibited highly stable device performance under extended bending conditions (with a bending radius down to 3 mm and repeated tests over 1000 cycles). We believe that our simple methods for the fabrication of graphene/AgNP textile composite for use in textile-type transistors can potentially be applied to the development of flexible large-area electronic clothes. View Full-Text
Keywords: e-textile; graphene oxide; textile composite; textile transistor e-textile; graphene oxide; textile composite; textile transistor
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Kim, Y.; Kwon, Y.J.; Lee, K.E.; Oh, Y.; Um, M.-K.; Seong, D.G.; Lee, J.U. Flexible Textile-Based Organic Transistors Using Graphene/Ag Nanoparticle Electrode. Nanomaterials 2016, 6, 147.

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