作者
Irene Calizo, Wenzhong Bao, Feng Miao, Chun Ning Lau, Alexander A Balandin
发表日期
2007/11
期刊
Applied Physics Letters
卷号
91
期号
20
页码范围
201904-201904-3
出版商
AIP
简介
The authors investigated the influence of substrates on Raman scattering spectrum from graphene. The room-temperature Raman signatures from graphene layers on GaAs, sapphire, and glass substrates were compared with those from graphene on the standard Si∕ Si O 2 (300 nm) substrate, which served as a reference. It was found that while G peak of graphene on Si∕ Si O 2 and GaAs is positioned at 1580 cm− 1, it is downshifted by∼ 5 cm− 1 for graphene on sapphire and, in some cases, splits into doublets for graphene on glass with the central frequency around 1580 cm− 1. The obtained results are important for nanometrology of graphene and graphene-based devices.
引用总数
学术搜索中的文章
I Calizo, W Bao, F Miao, CN Lau, AA Balandin - Applied Physics Letters, 2007