Journal
MATERIALS LETTERS
Volume 215, Issue -, Pages 259-262Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2017.12.121
Keywords
Chemical vapor deposition; Polycrystalline graphene; Millimeter-sized domain; Surface oxygen
Funding
- National Natural Science Foundation of China [11502231, 11621062, 61471317]
- National Key Scientific Instruments and Equipment Development Project of China [61427901]
- Fundamental Research Funds for the Central Universities [2017QNA4032]
Ask authors/readers for more resources
The preparation of scalable graphene films has attracted an enormous attention due to its industrial importance for graphene applications. Here we present a synthesis method of high-quality continuous monolayer graphene films with millimeter-sized domains on ordinary Cu substrates using oxygen-assisted chemical vapor deposition. This method demonstrates a significantly improvement to the resultant graphene such as a largely decreased nucleation density from similar to 10(6) to similar to 10(1) nuclei/cm(2), an increased average domain size from similar to 0.004 to similar to 1.5 mm and a film coverage from 64% to 100%. We attributed the success of this growth to the surface layer formed by bonded oxygen in Cu, which provides a higher priority for catalyzing the nucleation and growth of graphene domains. (C) 2018 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available