Observation of Raman G-Peak Split for Graphene Nanoribbons with Hydrogen-Terminated Zigzag Edges
文献类型：期刊论文
| 作者 | Yang, R ; Shi, ZW ; Zhang, LC ; Shi, DX ; Zhang, GY |
| 刊名 | NANO LETTERS
 |
| 出版日期 | 2011 |
| 卷号 | 11期号:10页码:4083 |
| 关键词 | SPECTROSCOPY RIBBONS ORIENTATION SCATTERING GRAPHITE STRAIN STATE |
| ISSN号 | 1530-6984 |
| 通讯作者 | Zhang, GY (reprint author), Chinese Acad Sci, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China. |
| 中文摘要 | Raman scattering of individual hydrogen-terminated zigzag-edged graphene nanoribbons (Z-GNRs) was studied with focus on the G-peak. In addition to the bulk graphene G-peak appearing at similar to 1594 cm(-1) (G(+)), an edge-related G-peak at similar to 1583 cm(-1) (G(-)) was observed for Z-GNRs. This additional Raman vibrational mode originates from the zigzag edges where localized metallic edge states are present. The relative intensity ratio G(-)/G(+) displays a strong dependence on the ribbon width (W). It increases gradually with decreasing W, and the G(+) finally vanishes at W = 5(+/- 3) nm. Polarized Raman scattering was also employed to confirm the four-fold symmetry of the split TO modes, and the results are in good agreement with previous theoretical predictions. Our work offers the first direct experimental evidence to confirm the validity of predicted Raman scattering of GNRs. |
| 收录类别 | SCI |
| 资助信息 | Institute of Physics (IOP); Chinese Academy of Sciences (CAS); Science Foundation of CAS; National Science Foundation of China (NSFC) [11074288, 10974226]; Chinese Ministry of Science and Technology [2010CB934202, 2012CB921302] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/50169]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Yang, R,Shi, ZW,Zhang, LC,et al. Observation of Raman G-Peak Split for Graphene Nanoribbons with Hydrogen-Terminated Zigzag Edges[J]. NANO LETTERS,2011,11(10):4083. |
| APA | Yang, R,Shi, ZW,Zhang, LC,Shi, DX,&Zhang, GY.(2011).Observation of Raman G-Peak Split for Graphene Nanoribbons with Hydrogen-Terminated Zigzag Edges.NANO LETTERS,11(10),4083. |
| MLA | Yang, R,et al."Observation of Raman G-Peak Split for Graphene Nanoribbons with Hydrogen-Terminated Zigzag Edges".NANO LETTERS 11.10(2011):4083. |
入库方式： OAI收割
来源：物理研究所
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