期刊
PHYSICAL REVIEW B
卷 93, 期 24, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.93.245420
关键词
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资金
- Center for Nanostructured Graphene - Danish National Research Foundation [DNRF103]
- QUSCOPE project - Villum Foundation
- National Research Foundation (Singapore) through the CRP grant Novel 2D materials with tailored properties: beyond graphene [R-144-000-295-281]
- Villum Fonden [00007335] Funding Source: researchfish
Bottom-up fabrication of graphene antidot lattices (GALs) has previously yielded atomically precise structures with subnanometer periodicity. Focusing on this type of experimentally realized GAL, we perform density functional theory calculations on the pristine structure as well as GALs with edge carbon atoms substituted with boron or nitrogen. We show that p- and n-type doping levels emerge with activation energies that depend on the level of hydrogenation at the impurity. Furthermore, a tight-binding parametrization together with a Green's function method are used to describe more dilute doping. Finally, random configurations of impurities in moderately doped systems are considered to show that the doping properties are robust against disorder.
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