Large-Area Graphene Films by Simple Solution Casting of Edge-Selectively Functionalized Graphite
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- 作者：Seo-Yoon Bae ; In-Yup Jeon ; Jieun Yang ; Noejung Park ; Hyeon Suk Shin ; Sungjin Park ; Rodney S. Ruoff ; Liming Dai ; Jong-Beom Baek
- 刊名：ACS Nano
- 出版年：2011
- 出版时间：June 28, 2011
- 年：2011
- 卷：5
- 期：6
- 页码：4974-4980
- 全文大小：943K
- 年卷期：0
- ISSN：1936-086X
文摘
We report edge-selective functionalization of graphite (EFG) for the production of large-area uniform graphene films by simply solution-casting EFG dispersions in dichloromethane on silicon oxide substrates, followed by annealing. The resultant graphene films show ambipolar transport properties with sheet resistances of 0.52–3.11 kΩ/sq at 63–90% optical transmittance. EFG allows solution processing methods for the scalable production of electrically conductive, optically transparent, and mechanically robust flexible graphene films for use in practice.