We study a crystallographic etching process of graphene nanostructures, where zigzag edges can be prepared selectively. The process involves heating exfoliated single-layer graphene samples with a predefined pattern of antidot arrays in an argon atmosphere at 820 ∘C, which selectively removes carb ... [Appl. Phys. Lett. 103, 143111 (2013)] published Tue Oct 01, 2013.
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