Optical contrast spectra studies for determining thickness of stage-1 graphene-FeCl{sub 3} intercalation compounds
- College of Physics, Qingdao University, Qingdao 266071 (China)
- State Key Laboratory for Superlattices and Microstructures, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083 (China)
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 FeCl{sub 3}-GIC is obtained by fitting the optical contrast spectra. And fully intercalated stage-1 FeCl{sub 3}-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 FeCl{sub 3}-GICs by micromechanical cleavage can be determined by optical contrast spectra. This method also can be used to other FLGICs, such as SbCl{sub 5}-FLGICs and AuCl{sub 5}-FLGICs, etc.
- OSTI ID:
- 22611429
- Journal Information:
- AIP Advances, Journal Name: AIP Advances Journal Issue: 7 Vol. 6; ISSN AAIDBI; ISSN 2158-3226
- Country of Publication:
- United States
- Language:
- English
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