Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8014911 | Materials Letters | 2018 | 4 Pages |
Abstract
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 â¼106 to â¼101â¯nuclei/cm2, an increased average domain size from â¼0.004 to â¼1.5â¯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.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Shaoqian Yin, Xuewei Zhang, Chen Xu, Yang Wang, Yunlu Wang, Peifeng Li, Hongyan Sun, Miao Wang, Yang Xia, Cheng-Te Lin, Pei Zhao, Hongtao Wang,