Fabrication of Chemical Graphene Nanoribbons via Edge-Selective Covalent Modification.

Liao, Lei; Xie, Qin; Guo, Xuefeng; Liu, Zhongfan · Adv Mater · 2015

basic_science · Level V

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Abstract

Chemical graphene nanoribbons (CGNRs), a new type of quantum-confinement graphene nanostructure with tunable electrical conduction channels and bandgaps, are fabricated by chemically narrowing the conduction channels of the graphene based on an edge-selective covalent reaction. Such CGNRs behave as semiconductors with tunable on/off ratios ranging from a few hundreds to ≈10(4) .