Rational and practical exfoliation of graphite using well-defined poly(3-hexylthiophene) for the preparation of conductive polymer/graphene composite
| Autor: | Yuichi Funasaki, Atsunori Mori, Keisuke Fujita, Chisato Higashi, Hiroki Iguchi, Tatsuo Maruyama, Akira Nakasuga |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Conductive polymer
Multidisciplinary Materials science Graphene Composite number Nanotechnology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Exfoliation joint Article 0104 chemical sciences law.invention law Electrical resistivity and conductivity Graphite 0210 nano-technology Electrical conductor Graphene oxide paper |
| Zdroj: | Scientific Reports |
| ISSN: | 2045-2322 |
| Popis: | Processing and manipulation of highly conductive pristine graphene in large quantities are still major challenges in the practical application of graphene for electric device. In the present study, we report the liquid-phase exfoliation of graphite in toluene using well-defined poly(3-hexylthiophene) (P3HT) to produce a P3HT/graphene composite. We synthesize and use regioregular P3HT with controlled molecular weights as conductive dispersants for graphene. Simple ultrasonication of graphite flakes with the P3HT successfully produces single-layer and few-layer graphene sheets dispersed in toluene. The produced P3HT/graphene composite can be used as conductive graphene ink, indicating that the P3HT/graphene composite has high electrical conductivity owing to the high conductivity of P3HT and graphene. The P3HT/graphene composite also works as an oxidation-resistant and conductive film for a copper substrate, which is due to the high gas-barrier property of graphene. |
| Databáze: | OpenAIRE |
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