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Qingsong Huang, Jae Joon Kim, Ghafar Ali and Sung Oh Cho Width-Tunable Graphene Nanoribbons on a SiC Substrate with a Controlled Step Height Advanced Materials 25

Article first published online: 11 DEC 2012 | DOI: 10.1002/adma.201202746

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An approach to fabricate large-scale graphene nanoribbons (GNRs) with tunable ribbon widths is presented. Regular steps with variable heights from 1 to 100 nm can be prepared on a SiC substrate by a low-pressure etching process. Graphene can be epitaxially grown only on the side walls of the steps, thereby leading to GNRs with controllable widths.

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