▎ 摘　　要

We present a method to produce extended few layer flakes of reduced graphene oxide starting from bulk graphene oxide platelets using Ar plasma treatment at room temperature of mechanically exfoliated platelets. Multilayer graphene oxide platelets transferred to a silicon wafer by micromechanical cleavage were thinned in a controllable and reproducible way by plasma treatment to achieve few-layer reduced graphene sheets without the use of heating or wet chemistry approaches. (C) 2011 Elsevier B. V. All rights reserved.