Interaction between graphene and semiconducting diamond substrate has been examined with large-scale density functional theory calculations. Clean and hydrogenated diamond (100) and (111) surfaces have been studied. It turns out that weak van der Waals interactions dominate for graphene on all these surfaces. High carrier mobility of graphene is almost not affected, except for a negligible energy gap opening at the Dirac point. No charge transfer between graphene and diamond (100) surfaces is detected, while different charge-transfer complexes are formed between graphene and diamond (111) surfaces, inducing either p-type or n-type doping on graphene. Therefore, diamond can be used as an excellent substrate of graphene, which almost keeps its electronic structures at the same time providing the flexibility of charge doping.
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7 February 2013
Research Article|
February 01 2013
Diamond as an inert substrate of graphene Available to Purchase
Wei Hu;
Wei Hu
Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, People's Republic of China
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Zhenyu Li;
Zhenyu Li
Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, People's Republic of China
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Jinlong Yang
Jinlong Yang
a)
Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, People's Republic of China
Search for other works by this author on:
Wei Hu
Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, People's Republic of China
Zhenyu Li
Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, People's Republic of China
Jinlong Yang
a)
Hefei National Laboratory for Physical Sciences at Microscale,
University of Science and Technology of China
, Hefei, Anhui 230026, People's Republic of China
a)
Author to whom correspondence should be addressed. Electronic mail: [email protected].
J. Chem. Phys. 138, 054701 (2013)
Article history
Received:
November 01 2012
Accepted:
January 11 2013
Citation
Wei Hu, Zhenyu Li, Jinlong Yang; Diamond as an inert substrate of graphene. J. Chem. Phys. 7 February 2013; 138 (5): 054701. https://doi.org/10.1063/1.4789420
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