期刊
CARBON
卷 49, 期 11, 页码 3672-3678出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.carbon.2011.04.069
关键词
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资金
- NNSF of China [50902071, 61076067, 61006007]
- 973 Program (China) [2009CB930601]
- Science Foundation of Nanjing University of Posts and Telecommunications [NY208058]
- National Science Foundation of China [20100471354]
- National Science Foundation of Jiangsu Province [BK2010525]
- Research Center for Applied Science (Academia Sinica, Taiwan)
- A-Star SERC Grant, Singapore [0721010020]
- National Research Foundation Singapore [NRF-CRP 2-2007-02]
Large-sized thin-films composed of single- and few-layered graphene have been synthesized by chemical vapor deposition (CVD) on copper foils under atmospheric pressure using ethanol or pentane as the precursor. Confocal Raman measurements, transmission electron microscopy and scanning tunneling microscopy show that the majority part of the obtained films exhibit hexagonal graphene lattice. Optical microscopy and electrical measurements confirm the continuity of these films. It is also found that the CVD-grown graphene films with ethanol as the precursor exhibit lower defect density, higher electrical conductivity, and higher hall mobility than those grown with pentane as the precursor. This liquid-precursor-based atmospheric pressure CVD synthesis provides a new route for simple, inexpensive and safe growth of graphene thin-films. (C) 2011 Elsevier Ltd. All rights reserved.
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