High-quality graphene via microwave reduction of solution-exfoliated graphene oxide

Efficient exfoliation of graphite in solutions to obtain high-quality graphene flakes is desirable for printable electronics, catalysis, energy storage, and composites. Graphite oxide with large lateral dimensions has an exfoliation yield of ~100%, but it has not been possible to completely remove the oxygen functional groups so that the reduced form of graphene oxide (GO; reduced form: rGO) remains a highly disordered material. Here we report a simple, rapid method to reduce GO into pristine graphene using 1- to 2-second pulses of microwaves. The desirable structural properties are translated into mobility values of >1000 square centimeters per volt per second in field-effect transistors with…

• NS
  National Science Foundation

  Award: 903661
• NR
  Neurosciences Research Foundation
• NR
  National Research Foundation

  Award: 2014R1A2A2A01007136
• MO
  Ministry of Science, ICT and Future Planning
• DO
  Division of Electrical, Communications and Cyber Systems

  Award: 1128335