给石墨烯引入带隙的方法之一是制作极窄的石墨烯带。
One way of introducing a bandgap into graphene is to make extremely narrow ribbons of the material.
这些方法得到的石墨烯带都比较宽(超过10nm)，而且边缘粗糙。
Such methods produce ribbons that are relatively wide (more than 10 nm across) with rough edges.
这种石墨烯带还拥有平滑的边缘，而这是制造基于石墨烯的电子器件的关键。
The ribbons also have smooth edges, something that is crucial for making electronic devices out of graphene.
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