Local strain effect on the band gap engineering of graphene by a first-principles study
Abstract
We have systematically investigated the effect of local strain on electronic properties of graphene by first-principles calculations. Two major types of local strain, oriented along the zigzag and the armchair directions, have been studied. We find that local strain with a proper range and strength along the zigzag direction results in opening of significant band gaps in graphene, on the order of 10−1 eV; whereas, local strain along the armchair direction cannot open a significant band gap in graphene. Our results show that appropriate local strain can effectively open and tune the band gap in graphene; therefore, the electronic and transport properties of graphene can also be modified.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 02, 2015
- Source ID
- 10.1063/1.4907410
Entities
People
- Dane Morgan
- Gui Gui
- Jianxin Zhong
- John H. Booske
- Zhenqiang Ma
Organizations
- Office of Naval Research
- University of Wisconsin–Madison
- Xiangtan University