期刊
JOURNAL OF PHYSICAL CHEMISTRY C
卷 115, 期 8, 页码 3250-3256出版社
AMER CHEMICAL SOC
DOI: 10.1021/jp109741s
关键词
-
We investigate graphene superlattices of nitrogen and boron substitutional defects. Using symmetry arguments and electronic structure calculations we show how such superlattices can be used to modify graphene band structure. Specifically, depending on the superlattice symmetry, the structures considered here can either preserve the Dirac cones (D-6h, superlattices) or open a band gap (D-3h). Relevant band parameters (carrier effective masses, group velocities, and gaps, when present) are found to depend on the superlattice constant n as 1/n(P) where p is in the range 1-2, depending on the case considered. Overall, the results graphene band structure to a great extent by modifying a few superlattice parameters. presented here show how one can tune the graphene band structure to a great extent by modifying a few superlattice parameters.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据