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The edges of graphene
Xiuyun Zhang1, John Xin, Feng Ding
1Institute of Textile and clothing, Hong Kong Polytechnic University, Hong Kong, China.
Nanoscale
|February 20, 2013
Summary
Graphene edges significantly influence material properties. This review covers edge formation, reconstruction, synthesis, and metal-passivated edges, particularly their role in chemical vapor deposition (CVD) growth.
Area of Science:
- Materials Science
- Surface Science
- Nanotechnology
Background:
- The physical, electronic, and chemical properties of two-dimensional (2D) graphene are critically dependent on its edges.
- Graphene edges, analogous to the surface of a three-dimensional (3D) crystal, are increasingly recognized for their importance.
Purpose of the Study:
- To provide a comprehensive review of recent advancements in the study of graphene edges.
- To elucidate the role of catalyst-passivated graphene edges in graphene chemical vapor deposition (CVD) growth.
Main Methods:
- Literature review of recent research on graphene edges.
- Analysis of edge formation energy and reconstruction mechanisms.
- Synthesis methods for controlled graphene edge preparation.
- Investigation of metal-passivated graphene edges.
Main Results:
- Summarized recent findings on graphene edge formation energy and reconstruction.
- Detailed recent progress in synthesizing graphene with controlled edges.
- Highlighted the impact of metal passivation on graphene edge properties.
- Emphasized the crucial role of edges in graphene CVD growth.
Conclusions:
- Graphene edge structure and passivation are key determinants of material properties.
- Understanding these aspects is vital for optimizing graphene synthesis and applications, especially in CVD processes.
