Fluorographene: A Two-Dimensional Counterpart of Teflon
Fluorographene: A Two-Dimensional Counterpart of Teflon
复制标题
氟橡胶：特氟龙的二维对应物
DOI：
10.1002/smll.201001555
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发表时间：
2010-12-20
期刊：
影响因子：
13.3
通讯作者：
Geim, Andre K.
中科院分区：
文献类型：
--
作者：
Nair, Rahul R.;Ren, Wencai;Geim, Andre K.
报道了每个碳上连接有氟原子的石墨烯的化学计量衍生物。拉曼、光学、结构、微机械和传输研究表明，该材料在质量上与已知的基于石墨烯的非化学计量衍生物不同。氟石墨烯是一种高质量绝缘体（电阻率 >10(12) Omega），光学间隙为 3 eV。它继承了石墨烯的机械强度，表现出100 N m(-1)的杨氏模量和15%的持续应变。与聚四氟乙烯类似，氟石墨烯即使在空气中也能在高达 400 摄氏度的温度下保持惰性且稳定。
A stoichiometric derivative of graphene with a fluorine atom attached to each carbon is reported. 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) Omega) with an optical gap of 3 eV. It inherits the mechanical strength of graphene, exhibiting a Young's modulus of 100 N m(-1) and sustaining strains of 15%. Fluorographene is inert and stable up to 400 degrees C even in air, similar to Teflon.