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Nanotechnology. 2011 May 6;22(18):185309. doi: 10.1088/0957-4484/22/18/185309. Epub 2011 Mar 22.

Transfer printing of graphene strip from the graphene grown on copper wires.

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  • 1Research Center for Applied Sciences, Academia Sinica, Taipei 11529, Taiwan.


A simple, cost-effective and lithography-free fabrication of graphene strips for device applications is demonstrated. The graphene thin layers were directly grown on Cu wires, followed by Cu etching and transfer printing to arbitrary substrates by a PDMS stamp. The Cu wires can be arranged on the PDMS stamp in a desired pattern; hence, the substrates can receive graphene strips with the same pattern. Moreover, the preparation of graphene strips does not involve conventional lithography; therefore, the surface of the graphene strip is free of residual photoresists, which may be useful for studies requiring clean graphene surfaces.

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