10.1021/nl900811r.s001
Leonardo C. Campos
Leonardo C.
Campos
Vitor R. Manfrinato
Vitor R.
Manfrinato
Javier D. Sanchez-Yamagishi
Javier D.
Sanchez-Yamagishi
Jing Kong
Jing
Kong
Pablo Jarillo-Herrero
Pablo
Jarillo-Herrero
Anisotropic Etching and Nanoribbon Formation in Single-Layer Graphene
American Chemical Society
2009
measurements show
Anisotropic Etching
technique
graphene nanostructures
Raman spectroscopy
nickel nanoparticles
graphene nanocircuits
anisotropic etching
Nanoribbon Formation
etching conditions
2009-07-08 00:00:00
Journal contribution
https://acs.figshare.com/articles/journal_contribution/Anisotropic_Etching_and_Nanoribbon_Formation_in_Single_Layer_Graphene/2844964
We demonstrate anisotropic etching of single-layer graphene by thermally activated nickel nanoparticles. Using this technique, we obtain sub-10-nm nanoribbons and other graphene nanostructures with edges aligned along a single crystallographic direction. We observe a new catalytic channeling behavior, whereby etched cuts do not intersect, resulting in continuously connected geometries. Raman spectroscopy and electronic measurements show that the quality of the graphene is resilient under the etching conditions, indicating that this method may serve as a powerful technique to produce graphene nanocircuits with well-defined crystallographic edges.