Centimeter-Scale and Highly Crystalline Two-Dimensional Alcohol: Evidence for Graphenol (C<sub>6</sub>OH).

Lim, Hyunseob; Park, Younghee; Lee, Minhui; Ahn, Jong-Guk; Li, Bao Wen; Luo, Da; Jung, Jaehoon; Ruoff, Rodney S et al. · Nano Lett · 2020

basic_science · Level V

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Abstract

We report a chemical route to synthesize centimeter-scale stoichiometric "graphenol (C<sub>6</sub>OH<sub>1</sub>)", a 2D crystalline alcohol, via vapor phase hydroxylation of epitaxial graphene on Cu(111). Atomic resolution scanning tunneling microscopy revealed this highly-ordered configuration of graphenol and low energy electron diffraction studies on a large-area single crystal graphene film demonstrated the feasibility of the same superstructure being achieved at the centimeter length scale. Periodic density functional theory (DFT) calculations about the formation of C6(OH)<sub>1</sub> and its electronic structure are also reported.