title: Electrochemically exfoliated graphene as solution-processable, highly conductive electrodes for organic electronics.
abstract: Solution-processable thin layer graphene is an intriguing nanomaterial with tremendous potential for electronic applications. In this work, we demonstrate that electrochemical exfoliation of graphite furnishes graphene sheets of high quality. The electrochemically exfoliated graphene (EG) contains a high yield (>80%) of one- to three-layer graphene flakes with high C/O ratio of 12.3 and low sheet resistance (4.8 kΩ/□ for a single EG sheet). Due to the solution processability of EG, a vacuum filtration method in association with dry transfer is introduced to produce large-area and highly conductive graphene films on various substrates. Moreover, we demonstrate that the patterned EG can serve as high-performance source/drain electrodes for organic field-effect transistors.
authors.affiliation: Max Planck Institute for Polymer Research, Ackermannweg 10, D-55128 Mainz, Germany.
authors.forename: Khaled
authors.initials: K
authors.lastname: Parvez
authors.forename: Rongjin
authors.initials: R
authors.lastname: Li
authors.forename: Sreenivasa Reddy
authors.initials: SR
authors.lastname: Puniredd
authors.forename: Yenny
authors.initials: Y
authors.lastname: Hernandez
authors.forename: Felix
authors.initials: F
authors.lastname: Hinkel
authors.forename: Suhao
authors.initials: S
authors.lastname: Wang
authors.forename: Xinliang
authors.initials: X
authors.lastname: Feng
authors.forename: Klaus
authors.initials: K
authors.lastname: Müllen
mesh_terms: D004553:Electric Conductivity; D004566:Electrodes; D004595:Electroplating / Q000379:methods*; D004867:Equipment Design; D019544:Equipment Failure Analysis; D006108:Graphite / Q000737:chemistry*; D008567:Membranes, Artificial; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D010316:Particle Size; D012996:Solutions / Q000737:chemistry; D014173:Transistors, Electronic
chemical_list: D008567:Membranes, Artificial; D012996:Solutions; D006108:Graphite