Journal Article

Large-area ultrathin films of reduced graphene oxide as a transparent and flexible electronic material

Eda, Goki, Fanchini, Giovanni, Chhowalla, Manish

2008

Overview

The integration of novel materials such as single-walled carbon nanotubes and nanowires into devices has been challenging, but developments in transfer printing and solution-based methods now allow these materials to be incorporated into large-area electronics 1 , 2 , 3 , 4 , 5 , 6 . Similar efforts are now being devoted to making the integration of graphene into devices technologically feasible 7 , 8 , 9 , 10 . Here, we report a solution-based method that allows uniform and controllable deposition of reduced graphene oxide thin films with thicknesses ranging from a single monolayer to several layers over large areas. The opto-electronic properties can thus be tuned over several orders of magnitude, making them potentially useful for flexible and transparent semiconductors or semi-metals. The thinnest films exhibit graphene-like ambipolar transistor characteristics, whereas thicker films behave as graphite-like semi-metals. Collectively, our deposition method could represent a route for translating the interesting fundamental properties of graphene into technologically viable devices.

• Publisher: Nature Publishing Group UK,Nature Publishing Group
• Subject: Carbon - chemistry / Chemistry and Materials Science / Crystallization - methods / Electronics - instrumentation / Electronics industry / Equipment Design / Equipment Failure Analysis / letter / Macromolecular Substances - chemistry / Materials Science / Materials Testing / Metals / Miniaturization / Molecular Conformation / Nanostructures - chemistry / Nanostructures - ultrastructure / Nanotechnology / Nanotechnology - methods / Nanotechnology and Microengineering / Oxides - chemistry / Particle Size / Semiconductors / Surface Properties / Thin films