Unzipping Carbon Nanotubes to Sub‐5‐nm Graphene Nanoribbons on Cu(111) by Surface Catalysis

Author:

Dong Wenjie1,Li Xin1,Lu Shuai1,Li Jie1,Wang Yansong1,Zhong Mingjun1,Dong Xu2,Xu Zhen2,Shen Qian3ORCID,Gao Song2,Wu Kai4ORCID,Peng Lian‐Mao1ORCID,Hou Shimin1,Zhang Zhiyong1ORCID,Zhang Yajie1ORCID,Wang Yongfeng1ORCID

Affiliation:

1. Center for Carbon‐based Electronics and Key Laboratory for the Physics and Chemistry of Nanodevices School of Electronics Peking University Beijing 100871 China

2. Institute of Spin Science and Technology South China University of Technology Guangzhou 511442 China

3. Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University Nanjing 211816 China

4. BNLMS College of Chemistry and Molecular Engineering Peking University Beijing 100871 China

Abstract

AbstractGraphene nanoribbons (GNRs) are promising in nanoelectronics for their quasi‐1D structures with tunable bandgaps. The methods for controllable fabrication of high‐quality GNRs are still limited. Here a way to generate sub‐5‐nm GNRs by annealing single‐walled carbon nanotubes (SWCNTs) on Cu(111) is demonstrated. The structural evolution process is characterized by low‐temperature scanning tunneling microscopy. Substrate‐dependent measurements on Au(111) and Ru(0001) reveal that the intermediate strong SWCNT‐surface interaction plays a pivotal role in the formation of GNRs.

Funder

National Natural Science Foundation of China

Ministry of Science and Technology of the People's Republic of China

Publisher

Wiley

Subject

Biomaterials,Biotechnology,General Materials Science,General Chemistry

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