| High quality sub-monolayer,monolayer, and bilayer graphene on Ru（0001） |
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| 引用本文： | 徐文焱,黄立,阙炎德,李恩,张海刚,林晓,王业亮,杜世萱,高鸿钧.High quality sub-monolayer,monolayer, and bilayer graphene on Ru（0001）[J].中国物理 B,2014(9):15-18. |
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| 作者姓名： | 徐文焱 黄立 阙炎德 李恩 张海刚 林晓 王业亮 杜世萱 高鸿钧 |
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| 作者单位： | [1]Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China; [2]University of Chinese Academy of Sciences, Beijing 100049, China |
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| 基金项目： | supported by the National Basic Research Program of China(Grant Nos.2013CBA01600 and 2011CB932700);the National Natural Science Foundation of China(Grant Nos.61222112 and 11334006) |
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| 摘 要： | High quality sub-monolayer, monolayer, and bilayer graphene were grown on Ru(0001). For the sub-monolayer graphene, the size of graphene islands with zigzag edges can be controlled by the dose of ethylene exposure. By increasing the dose of ethylene to 100 Langmuir at a high substrate temperature(800℃), high quality single-crystalline monolayer graphene was synthesized on Ru(0001). High quality bilayer graphene was formed by further increasing the dose of ethylene while reducing the cooling rate to 5℃/min. Raman spectroscopy revealed the vibrational states of graphene, G and 2D peaks appeared only in the bilayer graphene, which demonstrates that it behaves as the intrinsic graphene. Our present work affords methods to produce high quality sub-monolayer, monolayer, and bilayer graphene, both for basic research and applications.
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| 关 键 词： | graphene Ru(0001) scanning tunneling microscopy |
High quality sub-monolayer,monolayer,and bilayer graphene on Ru(0001) |
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| Xu Wen-Yan;Huang Li;Que Yan-De;Li En;Zhang Hai-Gang;Lin Xiao;Wang Ye-Liang;Du Shi-Xuan;Gao Hong-Jun.High quality sub-monolayer,monolayer,and bilayer graphene on Ru(0001)[J].Chinese Physics B,2014(9):15-18. |
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| Authors: | Xu Wen-Yan;Huang Li;Que Yan-De;Li En;Zhang Hai-Gang;Lin Xiao;Wang Ye-Liang;Du Shi-Xuan;Gao Hong-Jun |
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| Abstract: | graphene, Ru（0001）, scanning tunneling microscopy |
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| Keywords: | graphene Ru() scanning tunneling microscopy |
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