List of records in nano database
||Nanopatterning of graphene with crystallographic orientation control
||The recent papers on the nanopatterning of graphene and cutting of graphene nanoribbons
were reviewed. It was found that until now the simultaneous control of crystallographic
orientation and of the ribbon width in the range of nanometers was possible only by scanning
tunneling lithography. The cutting process by local anodic oxidation under the AFM
tip is a similar process, but due to the different physical interaction mechanisms of the
STM and AFM tip with the substrate, and due to the larger radius of the AFM tip, the resolution
of AFM lithography is poorer. The various cutting processes based on mobile, catalytic
nanoparticles yield trenches with well defined crystallographic orientation, but have a
major drawback: the location of the nanoparticles and the control of the direction in which
the cutting will start are currently not predictable. The first promising results of a solid
phase reduction reaction of the SiO2 substrate at the graphene edge indicate the possibility
of developing a new type of lithography that will allow the realization of complex nanopatterns.
Recent results pointing to the possibility of the engineered modification of graphene
edges may prove useful to all lithographic processes.
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