On-Surface Synthesis of Rylene-Type Graphene Nanoribbons

被引:273
作者
Zhang, Haiming [1 ,2 ,3 ]
Lin, Haiping [1 ]
Sun, Kewei [1 ]
Chen, Long [4 ,5 ,6 ]
Zagranyarski, Yulian [4 ]
Aghdassi, Nabi [1 ]
Duhm, Steffen [1 ]
Li, Qing [1 ]
Zhong, Dingyong [2 ,3 ,7 ,8 ]
Li, Youyong [1 ]
Muellen, Klaus [4 ]
Fuchs, Harald [2 ,3 ]
Chi, Lifeng [1 ]
机构
[1] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, Suzhou 215123, Peoples R China
[2] Univ Munster, Inst Phys, D-48149 Munster, Germany
[3] Univ Munster, Ctr Nanosci & Technol CeNTech, D-48149 Munster, Germany
[4] Max Planck Inst Polymer Res, D-55128 Mainz, Germany
[5] Tianjin Univ, Dept Chem, Sch Sci, Tianjin 300072, Peoples R China
[6] Collaborat Innovat Ctr Chem Sci & Engn, Tianjin 300072, Peoples R China
[7] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China
[8] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China
基金
欧洲研究理事会; 中国国家自然科学基金;
关键词
BOTTOM-UP FABRICATION; SPECTROSCOPY; CHEMISTRY; STATE;
D O I
10.1021/ja511995r
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
The narrowest armchair graphene nanoribbon (AGNR) with five carbons across the width of the GNR (5-AGNR) was synthesized on Au(111) surfaces via sequential dehalogenation processes in a mild condition by using 1,4,5,8-tetrabromonaphthalene as the molecular precursor. Gold-organic hybrids were observed by using high-resolution scanning tunneling microscopy and considered as intermediate states upon AGNR formation. Scanning tunneling spectroscopy reveals an unexpectedly large band gap of Delta = 2.8 +/- 0.1 eV on Au(111) surface which can be interpreted by the hybridization of the surface states and the molecular states of the 5-AGNR.
引用
收藏
页码:4022 / 4025
页数:4
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