Abstract
Multi-layer graphene (MLG) sheets were produced from highly ordered pyrolytic graphite by mechanical exfoliation. We use aberration-corrected, low-voltage, high-resolution transmission electron microscopy to study the atomic structure at the edges of the sheets. In general, we find two different types of edges of MLG sheets are produced, either parallel to a zigzag direction or an arm-chair direction. A MLG sheet with edges parallel to the zigzag direction was observed to have small random corrugations and was relatively straight. We observed edges parallel to the arm-chair direction with highly corrugated atomic structure and terracing. We show that the corrugations are due to sawtooth oscillations in the atomic structure with zigzag edge terminations along the general arm-chair direction.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
