Abstract
Electrochemical exfoliation method had been developed for producing nanometer-size single layer graphene. We herein reported a developed method about producing single layer graphene with an average size of about 510 nm2 from analysis of scanning tunneling microscopy (STM) measurements. The high resolution STM images also showed clear carbon lattice structure of the produced graphene in an atomic level, indicating that our produced nano meter size graphene is not distorted and oxidized by exfoliation process and preserve pristine graphene lattice structure. Our developed technique provides a preparation of nanometer-size single layer graphene dispersed in a solution.