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

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2015年 / 137卷 / 12期

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

页码：4022 / 4025

页数：4

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