Bandgap engineering of graphene by corrugation on lattice-mismatched MgO (111)
- Authors
- Cho, Sung Beom; Chung, Yong-Chae
- Issue Date
- Feb-2013
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY C, v.1, no.8, pp.1595 - 1600
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF MATERIALS CHEMISTRY C
- Volume
- 1
- Number
- 8
- Start Page
- 1595
- End Page
- 1600
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163460
- DOI
- 10.1039/c2tc00257d
- ISSN
- 2050-7526
- Abstract
- The corrugation pattern and electronic structure of graphene on MgO (111), which is a lattice-mismatched substrate, were investigated using the ab initio method. On Mg-terminated octo-polar reconstructed MgO (111), graphene was physisorbed and shaped into a stripe-like corrugation pattern. Due to weak charge transfer at the interface, the graphene was of the n-type doped, and its low effective mass was preserved. On the other hand, graphene on O-terminated octo-polar reconstructed MgO (111) showed a larger corrugation triggered by periodic oxygen-carbon chemisorption. In addition, a band-gap opening, which was induced by the periodic chemisorption, of 0.294 eV was observed. The results indicate that a corrugation structure induced by the lattice-mismatched substrate is highly effective for band-gap engineering treatment.
- Files in This Item
-
Go to Link
- Appears in
Collections - 서울 공과대학 > 서울 신소재공학부 > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/163460)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.