Details

Autor(en) / Beteiligte

• Dong, Wenjie
• Li, Xin
• Lu, Shuai
• Li, Jie
• Wang, Yansong
• Zhong, Mingjun
• Dong, Xu
• Xu, Zhen
• Shen, Qian
• Gao, Song
• Wu, Kai
• Peng, Lian‐Mao
• Hou, Shimin
• Zhang, Zhiyong
• Zhang, Yajie
• Wang, Yongfeng

Titel

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

Ist Teil von

• Small (Weinheim an der Bergstrasse, Germany), 2024-05, Vol.20 (21), p.e2308430-n/a

Ort / Verlag

Germany: Wiley Subscription Services, Inc

Erscheinungsjahr

2024

Quelle

Wiley Online Library

Beschreibungen/Notizen

• Graphene 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. A novel approach is reported to facilely prepare graphene nanoribbons (GNRs) through the simple annealing of single‐walled carbon nanotubes (SWCNTs) on Cu(111). The surface‐catalyzed unzipping of SWCNTs occurs along a longitudinal line which directly contacts with Cu(111), affording straight GNRs. The structural evolution process is characterized by low‐temperature scanning tunneling microscopy with atom resolution.