Thickness and stacking geometry effects on high frequency overtone and combination Raman modes of graphene

• Main Authors: Li, Dongfei, Zhan, Da, Yan, Jiaxu, Liu, Lei, Sun, Chenglin, Li, Zuowei, Ni, Zhenhua, Shen, Zexiang
• Other Authors: School of Physical and Mathematical Sciences
• Format: Article
• Language: English
• Published: 2013
• Subjects: DRNTU::Science::Physics
• Online Access: https://hdl.handle.net/10356/96512; http://hdl.handle.net/10220/17321
• Institution: Nanyang Technological University

We investigate two high frequency Raman overtone and combination modes of graphene named 2D' and 2D + G bands, and located at ~3240 and ~ 4260 cm–1, respectively. The graphene thickness and stacking geometry effects for these two modes are systematically studied. The features of the 2D' ba...