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Real-time observation of graphene layer growth: Coupling of the interlayer spacing with thickness

DOI: 10.1016/j.carbon.2015.07.047 DOI Help

Authors: Daming Zhu (Chinese Academy of Sciences) , Hui Gao (Lanzhou University) , Xingmin Zhang (Chinese Academy of Sciences) , Tieying Yang (Chinese Academy of Sciences) , Li Li (Chinese Academy of Sciences) , Guangzhi Yin (Chinese Academy of Sciences) , Xiuhong Li (Chinese Academy of Sciences) , Chris Nicklin (Diamond Light Source) , Xingyu Gao (Chinese Academy of Sciences) , Zhong Li (Chinese Academy of Sciences) , Lin Yi (Huazhong University of Science and Technology) , Xiaolong Li (Chinese Academy of Sciences)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Carbon , VOL 94 , PAGES 775 - 780

State: Published (Approved)
Published: November 2015

Abstract: In-situ two-dimensional grazing incidence X-ray diffraction was applied in isothermal growth of graphene on nickel through chemical vapor deposition. The analyses showed that the graphene interlayer spacing decreases with the increasing number of graphene layers (growth time increase). Moreover, the as-deposited graphene can be gradually removed through in-situ Ar annealing treatment and inverse interlayer spacing change was also observed, i.e., the interlayer spacing of graphene increases with the number of graphene layers decrease. These results prove that there is a strong coupling effect between the interlayer spacing and the number of graphene layers. The weak interlayer interactions between graphene layers and the interface effects may contribute to this phenomenon.

Subject Areas: Materials, Physics

Facility: SSRF

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