Governing Rule for Dynamic Formation of Grain Boundaries in Grown Graphene | |
Guo, Wei ; Wu, Bin ; Li, Yongtao ; Wang, Lifeng ; Chen, Jisi ; Chen, Bingyan ; Zhang, Zhiyong ; Peng, Lianmao ; Wang, Shuai ; Liu, Yunqi | |
刊名 | ACS NANO |
2015 | |
关键词 | grain boundaries graphene dynamic formation chemical vapor deposition anisotropic etching CHEMICAL-VAPOR-DEPOSITION POLYCRYSTALLINE GRAPHENE MOLYBDENUM-DISULFIDE COPPER SURFACE TRANSPORT KINETICS DEFECTS FILMS |
DOI | 10.1021/acsnano.5b01827 |
英文摘要 | Grains and grain boundaries (GBs) in graphene are vital for the control of its properties; however, engineering or controlling them by growth remains a great challenge. Here we discover that the dynamic formation of GBs within chemical vapor deposited polygonal graphene flakes is described by a geometric rule. A GB is formed to be symmetrically tilted and a continuous straight line, and the key parameters including end point, direction of GB line, and misorientation angles between adjacent graphene grains can be determined solely by the geometries of the polygonal graphene flakes. We also show the growth control over the length of straight graphene GB lines and demonstrate the capability of parallel fabrication of field-effect transistor devices across predicted GBs in a straightforward manner. This work constitutes a significant step forward in engineering grains and GBs in graphene.; National Basic Research Program of China [2011CB932700, 2013CB933504, 2013CBA01602, 2011CB932303]; National Natural Science Foundation of China [61171054, 21273243, 60911130231, 51233006, 61390502]; Strategic Priority Research Program of the Chinese Academy of Sciences [XDB12030100]; SCI(E); EI; PubMed; ARTICLE; chmsamuel@hust.edu.cn; liuyq@iccas.ac.cn; 6; 5792-5798; 9 |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/419635] |
专题 | 信息科学技术学院 |
推荐引用方式 GB/T 7714 | Guo, Wei,Wu, Bin,Li, Yongtao,et al. Governing Rule for Dynamic Formation of Grain Boundaries in Grown Graphene[J]. ACS NANO,2015. |
APA | Guo, Wei.,Wu, Bin.,Li, Yongtao.,Wang, Lifeng.,Chen, Jisi.,...&Liu, Yunqi.(2015).Governing Rule for Dynamic Formation of Grain Boundaries in Grown Graphene.ACS NANO. |
MLA | Guo, Wei,et al."Governing Rule for Dynamic Formation of Grain Boundaries in Grown Graphene".ACS NANO (2015). |
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