Abstract:
The insulator band gap $E_g$ of graphene nanoribbons, one side of which is completely coated with hydrogen, is calculated numerically. It is shown that $E_g$ is $\sim$1.5 eV narrower than the band gap in graphane nanoribbons with the same width $w$ and steadily increases with decreasing $w$. As in graphane nanoribbons, the atomic structure of nanoribbon edges has virtually no effect on the value of $E_g$.
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