Surface Monocrystallization of Copper Foil for Fast Growth of Large Single-Crystal Graphene under Free Molecular Flow.

Wang, Huan; Xu, Xiaozhi; Li, Jiayu; Lin, Li; Sun, Luzhao; Sun, Xiao; Zhao, Shuli; Tan, Congwei et al. · Adv Mater · 2016

basic_science · Level V

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Abstract

Wafer-sized single-crystalline Cu (100) surface can be readily achieved on stacked polycrystalline Cu foils via simple oxygen chemisorption-induced reconstruction, enabling fast growth of large-scale millimeter-sized single-crystalline graphene arrays under molecular flow. The maximum growth rate can reach 300 μm min<sup>-1</sup> , several orders of magnitude higher than previously reported values for millimeter-sized single-crystalline graphene growth on Cu foils.