Synthesis of large-area graphene on molybdenum foils by chemical vapor deposition

We report the synthesis of large-area graphene films on Mo foils by chemical vapor deposition. X-ray diffraction indicates that the dissolution and segregation process governs the growth of graphene on Mo foils. Among all processing parameters investigated, the cooling rate is the key one to precise...

Full description

Saved in:
Bibliographic Details
Published in:Carbon (New York) 2012-11, Vol.50 (14), p.5226-5231
Main Authors: Wu, Yuanwen, Yu, Guanghui, Wang, Haomin, Wang, Bin, Chen, Zhiying, Zhang, Yanhui, Shi, Xiaoping, Xie, Xiaoming, Jin, Zhi, Liu, Xinyu
Format: Article
Language:English
Subjects:
Carbon
Chemical vapor deposition
Cooling rate
Cross-disciplinary physics: materials science
rheology
Dissolution
Exact sciences and technology
Foils
Fullerenes and related materials
diamonds, graphite
Graphene
Materials science
Molybdenum
Physics
Specific materials
Synthesis
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report the synthesis of large-area graphene films on Mo foils by chemical vapor deposition. X-ray diffraction indicates that the dissolution and segregation process governs the growth of graphene on Mo foils. Among all processing parameters investigated, the cooling rate is the key one to precisely control the thickness of graphene film. By optimizing the cooling rate between 1.5 and 10°C/s, we managed to achieve graphene films ranging from mono- to tri-layer. Their uniformity and thickness were confirmed by Raman spectroscopy and optical measurements. The carrier mobility of films reaches as high as 193cm2V−1s−1. Our experiments show that the Mo substrate has the similar simplicity and large tolerance to processing conditions as Cu.
ISSN:0008-6223
1873-3891
DOI:10.1016/j.carbon.2012.07.007