Growth of Large-Area Single- and Bi-Layer Graphene by Controlled Carbon Precipitation on Polycrystalline Ni Surfaces
Author(s)
Reina, Alfonso
Thiele, Stefan
Jia, Xiaoting
Bhaviripudi, Sreekar
Dresselhaus, Mildred
Schaefer, Juergen A.
Kong, Jing
Date Issued
2009
Journal
Nano Research
Publisher
Springer-Verlag
Citation
Reina, Alfonso et al. “Growth of Large-area Single- and Bi-layer Graphene by Controlled Carbon Precipitation on Polycrystalline Ni Surfaces.” Nano Research 2.6 (2010): 509–516.
Version
Final published version
Abstract
We report graphene films composed mostly of one or two layers of graphene grown by controlled carbon precipitation on the surface of polycrystalline Ni thin films during atmospheric chemical vapor deposition (CVD). Controlling both the methane concentration during CVD and the substrate cooling rate during graphene growth can significantly improve the thickness uniformity. As a result, one- or two- layer graphene regions occupy up to 87% of the film area. Single layer coverage accounts for 5%–11% of the overall film. These regions expand across multiple grain boundaries of the underlying polycrystalline Ni film. The number density of sites with multilayer graphene/graphite (>2 layers) is reduced as the cooling rate decreases. These films can also be transferred to other substrates and their sizes are only limited by the sizes of the Ni film and the CVD chamber. Here, we demonstrate the formation of films as large as 1 in2. These findings represent an important step towards the fabrication of large-scale high-quality graphene samples.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Massachusetts Institute of Technology. Department of Materials Science and Engineering
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Research Laboratory of Electronics
Terms of Use
Creative Commons Attribution Noncommercial
Persistent DSpace Link
DOI of Published Version
https://doi.org/10.1007/s12274-009-9059-y
