氟代石墨烯：聚四氟乙烯的二维对应物
Fluorographene: Two Dimensional Counterpart of Teflon
摘要：
我们报告了石墨烯的化学计量衍生物，每个碳原子上都有一个氟原子。拉曼光谱、光学、结构、微机械和输运研究表明，该材料与已知的石墨烯基非化学计量衍生物有质的不同。氟石墨烯是一种高质量的绝缘体（电阻率>10^12欧姆/平方），光学带隙为3 eV。它继承了石墨烯的机械强度，表现出100 N/m的杨氏模量和15%的持续应变。氟石墨烯是惰性的，即使在空气中也能稳定到400 ℃，类似于特氟龙。
英文摘要：
We report a stoichiometric derivative of graphene with a fluorine atom attached to each carbon. Raman, optical, structural, micromechanical and transport studies show that the material is qualitatively different from the known graphene-based nonstoichiometric derivatives. Fluorographene is a high-quality insulator (resistivity >10^12 Ohm per square) with an optical gap of 3 eV. It inherits the mechanical strength of graphene, exhibiting Young's modulus of 100 N/m and sustaining strains of 15%. Fluorographene is inert and stable up to 400C even in air, similar to Teflon.
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