A Simple Method for Cleaning Graphene Surfaces with an Electrostatic Force

A facile method involving electrostatic forces is used to clean graphene surfaces that have been prepared through chemical vapor deposition (CVD). In this electrostatic-force cleaning (EFC) method, extremely fine cloth fibers are rubbed against CVD-grown graphene, in order to remove residual poly(methyl methacrylate) (PMMA), known as "PMMA-G," without damaging the graphene surface. As a service to our authors and readers, this journal provides supporting information supplied by the authors. Such materials are peer reviewed and may be re-organized for online delivery, but are not copy-edited or typeset. Technical support issues arising from supporting information (other than missing files) should be addressed to the authors. Please note: The publisher is not responsible for the content or functionality of any supporting information supplied by the authors. Any queries (other than missing content) should be directed to the corresponding author for the article.