期刊
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
卷 27, 期 6, 页码 3059-3062出版社
A V S AMER INST PHYSICS
DOI: 10.1116/1.3253536
关键词
annealing; electron beam lithography; graphene; monolayers; nanostructured materials; self-assembly
资金
- Volkswagenstiftung
- Deutsche Forschungsgemeinschaft
The fabrication of 1 nm thin carbon nanoribbons and nanorings is demonstrated. Aromatic self-assembled monolayers are locally cross-linked by electron beam lithography into polymeric carbon nanosheets. Annealing at 1200 K in ultrahigh vacuum transforms these electrically insulating nanosheets into a conducting two-dimensional phase consisting of nanopatches of graphene with a sheet conductivity of similar to 10(-2) S sq. The method allows the direct writing of patterns into the monolayer, permitting the resistless fabrication of arbitrarily sized and shaped carbon nanostructures with a thickness of 1 nm.
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