Facile synthesis of wide-bandgap fluorinated graphene semiconductors

Haixin Chang, Jinsheng Cheng, Xuqing Liu, Junfeng Gao, Mingjian Li, Jinghong Li, Xiaoming Tao, Feng Ding, Zijian Zheng

    Research output: Contribution to journalArticlepeer-review

    106 Citations (Scopus)

    Abstract

    The bandgap opening of graphene is extremely important for the expansion of the applications of graphene-based materials into optoelectronics and photonics. Current methods to open the bandgap of graphene have intrinsic drawbacks including small bandgap openings, the use hazardous/harsh chemical oxidations, and the requirement of expensive chemical-vapor deposition technologies. Herein, an eco-friendly, highly effective, low-cost, and highly scalable synthetic approach is reported for synthesizing wide-bandgap fluorinated graphene (F-graphene or or fluorographene) semiconductors under ambient conditions. In this synthesis, ionic liquids are used as the only chemical to exfoliate commercially available fluorinated graphite into single and few-layer F-graphene. Experimental and theoretical results show that the bandgap of F-graphene is largely dependent on the F coverage and configuration, and thereby can be tuned over a very wide range.

    Original languageEnglish
    Pages (from-to)8896-8903
    Number of pages8
    JournalChemistry - A European Journal
    Volume17
    Issue number32
    DOIs
    Publication statusPublished - 2011 Aug 1

    Keywords

    • density functional theory
    • fluorine
    • graphene
    • ionic liquids
    • semiconductors

    ASJC Scopus subject areas

    • Catalysis
    • Organic Chemistry

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