Optical contrast spectra studies for determining thickness of stage-1 graphene-FeCl3intercalation compounds

Autor: Yun Ze Long, Wen Peng Han, Yan Lu, Xu Yan, Qiao Qiao Li, Hui Zhao
Rok vydání: 2016
Předmět:
Zdroj: AIP Advances. 6:075219
ISSN: 2158-3226
Popis: Because of novel features in their structural, electronic, magnetic and optical properties, especially potential applications in nanoelectronics, the few-layer graphene intercalation compounds (FLGICs) have been intensively studied recently. In this work, the dielectric constant of the doped graphene of stage-1 FeCl3-GIC is obtained by fitting the optical contrast spectra. And fully intercalated stage-1 FeCl3-FLGICs were prepared by micromechanical cleavage method from graphite intercalation compounds (GICs) for the first time. Finally, we demonstrated that the thickness of stage-1 FeCl3-GICs by micromechanical cleavage can be determined by optical contrast spectra. This method also can be used to other FLGICs, such as SbCl5-FLGICs and AuCl5-FLGICs, etc.
Databáze: OpenAIRE