Hybrid Copper-Nanowire–Reduced-Graphene-Oxide Coatings: A “Green Solution” Toward Highly Transparent, Highly Conductive, and Flexible Electrodes for (Opto)Electronics
- Aliprandi, A. (Alessandro)
- Moreira, T. (Tiago)
- Anichini, C. (Cosimo)
- Stoeckel, M. (Marc-antoine)
- Eredia, M. (Matilde)
- Sassi, U. (Ugo)
- Bruna, M. (Matteo)
- Pinheiro, C. (Carlos)
- Laia, César A. T.
- Bonacchi, S. (Sara)
- Samori, P. (Paolo)
DOIAbstract
This study reports a novel green chemistry approach to assemble copper-nanowires/reduced-graphene-oxide hybrid coatings onto inorganic and organic supports. Such films are robust and combine sheet resistances ( 70%) that are rivalling those of indium–tin oxide. These electrodes are suitable for flexible electronic applications as they show a sheet resistance change of <4% after 10 000 bending cycles at a bending radius of 1.0 cm, when supported on polyethylene terephthalate foils. Significantly, the wet-chemistry method involves the preparation of dispersions in environmentally friendly solvents and avoids the use of harmful reagents. Such inks are processed at room temperature on a wide variety of surfaces by spray coating. As a proof-of-c...
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