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题名: Raman spectra investigation of the defects of chemical vapor deposited multilayer graphene and modified by oxygen plasma treatment
作者: Li, Zongyao; Xu, Yu(徐俞); Cao, Bing; Qi, Lin; He, Shunyu; Wang, Chinhua; Zhang, Jicai(张纪才); Wang, Jianfeng(王建峰); Xu, Ke(徐科)
通讯作者: Cao, B
刊名: SUPERLATTICES AND MICROSTRUCTURES
发表日期: 2016
DOI: 10.1016/j.spmi.2016.03.035
卷: 99
收录类别: SCI ; EI
文章类型: 期刊论文
部门归属: 测试分析平台
英文摘要: Graphene, a two dimensional material, can be modified its properties by defects engineering. Here, we present Raman spectra studies of the multilayer graphene (MLG) fabricated by low-pressure chemical vapor deposition over copper foil, and report that the defects of MLG can be controlled by adjusting methane concentration. Moreover, MLG can be changed from metallic to semiconductoring properties by using oxygen plasma treatment, and we investigate the defects evolution of the graphene after exposing to oxygen plasma by Raman spectra. Our results indicate that the amount of defects in graphene can be changed by regulating the methane concentration and oxygen plasma exposure times, but the primary type of defect in MLG is still boundary-like defect. It is valuable for understanding the physics of defects evolution through artificially generated defects, and such defect engineering will greatly open up the future application of the novel material. (C) 2016 Elsevier Ltd. All rights reserved.
关键词[WOS]: SPECTROSCOPY ; GAS
语种: 英语
JCR小类分区: 三区
WOS记录号: WOS:000390630200022
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinano.ac.cn/handle/332007/4792
Appears in Collections:测试分析平台_期刊论文

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Recommended Citation:
Li, Zongyao,Xu, Yu,Cao, Bing,et al. Raman spectra investigation of the defects of chemical vapor deposited multilayer graphene and modified by oxygen plasma treatment[J]. SUPERLATTICES AND MICROSTRUCTURES,2016,99.
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