Research now shows that interaction with silicon carbide substrate leads to the opening of a semiconductor gap in epitaxial graphene. This is an important first step towards bandgap engineering in this two-dimensional crystal, and its incorporation in electronic devices.
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Novoselov, K. Mind the gap. Nature Mater 6, 720–721 (2007). https://doi.org/10.1038/nmat2006
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DOI: https://doi.org/10.1038/nmat2006
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