Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles

doi:10.1038/s41467-021-22533-1

	Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles
	Sun, Luzhao 1,2,3; Wang, Zihao 4; Wang, Yuechen 1,2; Zhao, Liang 5; Li, Yanglizhi 1,2,3; Chen, Buhang 3; Huang, Shenghong 6; Zhang, Shishu 1; Wang, Wendong 4; Pei, Ding 7; Fang, Hongwei8 ; Zhong, Shan 1; Liu, Haiyang 1; Zhang, Jincan 1,3; Tong, Lianming 1; Chen, Yulin7,8 ; Li, Zhenyu 9; Rummeli, Mark H.5; Novoselov, Kostya S.4; Peng, Hailin 1,3; Lin, Li 4; Liu, Zhongfan 1,3
	2021-04-22
发表期刊	NATURE COMMUNICATIONS (IF:14.7[JCR-2023],16.1[5-Year])
ISSN	2041-1723
卷号	12 期号:1
DOI	10.1038/s41467-021-22533-1
摘要	The synthesis of twisted bilayer graphene with controllable angles is challenging. Here, the authors devise a chemical vapor deposition approach using a hetero-site nucleation strategy that affords twist angles ranging from 0 degrees to 30 degrees. Twisted bilayer graphene (tBLG) has recently attracted growing interest due to its unique twist-angle-dependent electronic properties. The preparation of high-quality large-area bilayer graphene with rich rotation angles would be important for the investigation of angle-dependent physics and applications, which, however, is still challenging. Here, we demonstrate a chemical vapor deposition (CVD) approach for growing high-quality tBLG using a hetero-site nucleation strategy, which enables the nucleation of the second layer at a different site from that of the first layer. The fraction of tBLGs in bilayer graphene domains with twist angles ranging from 0 degrees to 30 degrees was found to be improved to 88%, which is significantly higher than those reported previously. The hetero-site nucleation behavior was carefully investigated using an isotope-labeling technique. Furthermore, the clear Moire patterns and ultrahigh room-temperature carrier mobility of 68,000 cm(2) V-1 s(-1) confirmed the high crystalline quality of our tBLG. Our study opens an avenue for the controllable growth of tBLGs for both fundamental research and practical applications.
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收录类别	SCIE
语种	英语
WOS研究方向	Science & Technology - Other Topics
WOS类目	Multidisciplinary Sciences
WOS记录号	WOS:000642744500019
出版者	NATURE RESEARCH
原始文献类型	Article
引用统计	正在获取...
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/126692
专题	物质科学与技术学院_博士生物质科学与技术学院_特聘教授组_陈宇林
通讯作者	Huang, Shenghong; Peng, Hailin; Lin, Li; Liu, Zhongfan
作者单位	1.Peking Univ, Beijing Sci & Engn Ctr Nanocarbons, Beijing Natl Lab Mol Sci, Ctr Nanochem,Coll Chem & Mol Engn, Beijing 100871, Peoples R China; 2.Peking Univ, Acad Adv Interdisciplinary Studies, Beijing 100871, Peoples R China; 3.Beijing Graphene Inst, Beijing 100095, Peoples R China; 4.Univ Manchester, Sch Phys & Astron, Manchester M13 9PL, Lancs, England; 5.Soochow Univ, Soochow Inst Energy & Mat Innovat, Suzhou 215006, Peoples R China; 6.Univ Sci & Technol China, Dept Modern Mech, Hefei 230026, Peoples R China; 7.Univ Oxford, Dept Phys, Clarendon Lab, Oxford OX1 3PU, England; 8.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China; 9.Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Peoples R China
推荐引用方式 GB/T 7714	Sun, Luzhao,Wang, Zihao,Wang, Yuechen,et al. Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles[J]. NATURE COMMUNICATIONS,2021,12(1).
APA	Sun, Luzhao.,Wang, Zihao.,Wang, Yuechen.,Zhao, Liang.,Li, Yanglizhi.,...&Liu, Zhongfan.(2021).Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles.NATURE COMMUNICATIONS,12(1).
MLA	Sun, Luzhao,et al."Hetero-site nucleation for growing twisted bilayer graphene with a wide range of twist angles".NATURE COMMUNICATIONS 12.1(2021).