EN

W. Ren*, R. Saito, L. Gao, F. Zheng, Z. Wu, B. Liu, M. Furukawa, J. Zhao, Z. Chen, H.-M. Cheng*, 
Physical Review B 2010, 81 (3).  
DOI:10.1103/PhysRevB.81.035412  [PDF]

发布时间:2016-03-18    栏目名称:2010

W. Ren*, R. Saito, L. Gao, F. Zheng, Z. Wu, B. Liu, M. Furukawa, J. Zhao, Z. Chen, H.-M. Cheng*, 
Physical Review B 2010, 81 (3).  
DOI:10.1103/PhysRevB.81.035412  [PDF]

   
                 
   
 
Abstract: 
Using surface and interference co-enhanced Raman scattering measurements, we detected two well-distinguished Raman bands at 1450 and 1530 cm−1 from individual mono- and few-layer graphene nanoribbons (GNRs) prepared by chemical exfoliation and mechanical cleavage of graphite. The intensities of these two peaks strongly depend on the width and edge structure of the GNRs. Combining with first-principles calculations, the 1450 and 1530 cm−1 Raman bands are assigned to the localized vibration of the edge atoms of zigzag and armchair GNRs terminated with H atoms, respectively. In addition, two weak peaks at ~1140 and 1210 cm−1 are also observed, which are coupled with 1450 and 1530 cm−1, respectively. These findings enrich the understanding on the fine structure of mono- and few-layer GNRs by Raman spectroscopy.

中国科学院大连化学物理研究所

大连市中山路457号

邮编:116023

版权所有 © 二维材料化学与能源应用研究组

首页 / 组长简介 / 研究方向 / 研究组成员 / 发表论文 / 新闻 / 联系我们