Large-scale graphene micropatterns via self-assembly-mediated process for flexible device application.
Nano Lett
; 12(2): 743-8, 2012 Feb 08.
Article
en En
| MEDLINE
| ID: mdl-22276692
ABSTRACT
We report on a method for the large-scale production of graphene micropatterns by a self-assembly mediated process. The evaporation-induced self-assembly technique was engineered to produce highly ordered graphene patterns on flexible substrates in a simplified and scalable manner. The crossed stripe graphene patterns have been produced over a large area with regions consisting of single- and two-layer graphene. Based on these graphene patterns, flexible graphene-based field effect transistors have been fabricated with an ion-gel gate dielectric, which operates at low voltages of < 2 V with a hole and electron mobility of 214 and 106 cm(2)/V·s, respectively. The self-assembly approach described here may pave the way for the nonlithographic production of graphene patterns, which is scalable to large areas and compatible with roll-to-roll system.
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Grafito
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Membranas Artificiales
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En
Revista:
Nano Lett
Año:
2012
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Article