Spatially resolved electronic structures of atomically precise armchair graphene nanoribbons

Han Huang, Dacheng Wei, Jiatao Sun, Swee Liang Wong, Yuan Ping Feng, A. H.Castro Neto, Andrew Thye Shen Wee*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

246 引用 (Scopus)

摘要

Graphene has attracted much interest in both academia and industry. The challenge of making it semiconducting is crucial for applications in electronic devices. A promising approach is to reduce its physical size down to the nanometer scale. Here, we present the surface-assisted bottom-up fabrication of atomically precise armchair graphene nanoribbons (AGNRs) with predefined widths, namely 7-, 14- and 21-AGNRs, on Ag(111) as well as their spatially resolved width-dependent electronic structures. STM/STS measurements reveal their associated electron scattering patterns and the energy gaps over 1 eV. The mechanism to form such AGNRs is addressed based on the observed intermediate products. Our results provide new insights into the local properties of AGNRs, and have implications for the understanding of their electrical properties and potential applications.

源语言英语
文章编号983
期刊Scientific Reports
2
DOI
出版状态已出版 - 2012
已对外发布

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