Tuning the electronic properties of monolayer graphene by the periodic aligned graphene nanoribbons

被引：4

作者：

Lee, C. H. ^{[2
]}

Chen, S. C. ^{[3
]}

Su, W. S. ^{[4
]}

Chen, R. B. ^{[1
]}

Lin, M. F. ^{[3
]}

机构：

[1] Natl Kaohsiung Marine Univ, Ctr Gen Educ, Kaohsiung 811, Taiwan

[2] Natl Chengchi Univ, Inst Appl Phys, Taipei 116, Taiwan

[3] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[4] Tainan Univ Technol, Ctr Gen Educ, Tainan 710, Taiwan

来源：

SYNTHETIC METALS | 2011年 / 161卷 / 5-6期

关键词：

Graphene nanoribbons; Monolayer graphene; Electronic properties; SIMPLE HEXAGONAL GRAPHITE; OPTICAL-PROPERTIES; DIRAC-FERMIONS; BERRYS PHASE; NANOGRAPHITE; DEPENDENCE; RIBBONS; STATE; FILMS; GAS;

D O I：

10.1016/j.synthmet.2011.01.003

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The 2p(z) tight-binding model has been used to investigate the electronic properties of ribbon-graphene hybrid systems. This system is constructed by zigzag graphene nanoribbons aligned periodically on monolayer graphene. It was found that for such systems the electronic properties would be strongly influenced by the geometric structure of graphene nanoribbons, such as the width and the period of the ribbons. In addition, the stacking arrangement between graphene nanoribbons and monolayer graphene also plays a dominant role in determining the band structures in the low-energy region. These geometric structure effects can be well understood through the density of state calculations. Such hybrid structures lead to interesting novel features, dissimilar from those of single layer graphene, and could serve as a platform for the studies of device applications. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：489 / 495

页数：7

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