Sequence of Silicon Monolayer Structures Grown on a Ru Surface: from a Herringbone Structure to Silicene
文献类型：期刊论文
| 作者 | Huang, Li1,4; Zhang, Yan-Fang1,5,6; Zhang, Yu-Yang2,3,5,6; Xu, Wenyan1; Que, Yande1; Li, En1; Pan, Jin-Bo1; Wang, Ye-Liang1,2,3; Liu, Yunqi4; Du, Shi-Xuan1,2,3 |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2017-02-01 |
| 卷号 | 17期号:2页码:1161-1166 |
| 英文摘要 | Silicon-based two-dimensional (2D) materials are uniquely suited for integration in Si-based electronics. Silicene, an analogue of graphene, was recently fabricated on several substrates and was used to make a field-effect transistor. Here, we report that when Ru(0001) is used as a substrate, a range of distinct monolayer silicon stnictures forms, evolving toward silicene with increasing Si coverage. Low Si coverage produces a herringbone structure, a hitherto undiscovered 2D phase of silicon. With increasing Si coverage, herringbone elbows evolve into silicene-like honeycomb stripes under tension, resulting in a herringbone-honeycomb 2D superlattice. At even higher coverage, the honeycomb stripes widen and merge coherently to form silicene in registry with the substrate. Scanning tunneling microscopy (STM) was used to image the structures. The structural stability and electronic properties of the Si 2D structures, the interaction between the Si 2D structures and the Ru substrate, and the evolution of the distinct monolayer Si structures were elucidated by density functional theory (DFT) calculations. This work paves the way for further investigations of monolayer Si structures, the corresponding growth mechanisms, and possible functionalization by impurities. |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/38138]  |
| 专题 | 化学研究所_分子纳米结构与纳米技术实验室 |
| 作者单位 | 1.Chinese Acad Sci, Beijing Key Lab Nanomat & Nanodevices, Inst Phys, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Sch Phys Sci, Beijing 100049, Peoples R China 3.Univ Chinese Acad Sci, CAS Key Lab Vacuum Phys, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Inst Chem, Beijing 100190, Peoples R China 5.Vanderbilt Univ, Dept Phys & Astron, Nashville, TN 37235 USA 6.Vanderbilt Univ, Dept Elect Engn & Comp Sci, 221 Kirkland Hall, Nashville, TN 37235 USA |
| 推荐引用方式 GB/T 7714 | Huang, Li,Zhang, Yan-Fang,Zhang, Yu-Yang,et al. Sequence of Silicon Monolayer Structures Grown on a Ru Surface: from a Herringbone Structure to Silicene[J]. NANO LETTERS,2017,17(2):1161-1166. |
| APA | Huang, Li.,Zhang, Yan-Fang.,Zhang, Yu-Yang.,Xu, Wenyan.,Que, Yande.,...&Gao, Hong-Jun.(2017).Sequence of Silicon Monolayer Structures Grown on a Ru Surface: from a Herringbone Structure to Silicene.NANO LETTERS,17(2),1161-1166. |
| MLA | Huang, Li,et al."Sequence of Silicon Monolayer Structures Grown on a Ru Surface: from a Herringbone Structure to Silicene".NANO LETTERS 17.2(2017):1161-1166. |
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来源：化学研究所
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