Large-area fabrication of periodic sub-15 nm-width single-layer graphene nanorings.

Pak, Yusin; Jeong, Huisu; Lee, Kwang-Ho; Song, Hui; Kwon, Taehyeon; Park, Jungsu; Park, Woojin; Jeong, Mun-Seok et al. · Adv Mater · 2013

basic_science · Level V

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Abstract

A periodically aligned array of graphene nanorings (GRNRs) with a sub-15 nm linewidth at a pitch of 450 nm is fabricated with a large area, 9 cm(2) , through conventional nanoimprint lithography coupled with sophisticated metal deposition and plasma-etching processes. The existence of the single-layer GRNRs is verified by various techniques.

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