题目：

On-Surface Synthesis of Rylene-Type Graphene Nanoribbons

作者：

Haiming Zhang,^†,‡ Haiping Lin,^† Kewei Sun,^† Long Chen,^§,∥ Yulian Zagranyarski,^§Nabi Aghdassi,^† Steffen Duhm,^† Qing Li,^† Dingyong Zhong,^‡,⊥ Youyong Li,^† Klaus Müllen,^*,§ Harald Fuchs,^*,‡ and Lifeng Chi^*,†

单位：

^†Jiangsu Key Laboratory for Carbon Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou 215123, P. R. China

^‡Physikalisches Institut and Center for Nanoscience and Technology (CeNTech), Universität Münster, 48149 Münster, Germany §Max Planck Institute for Polymer Research, 55128 Mainz, Germany

^∥Department of Chemistry, School of Science, Tianjin University and Collaborative Innovation Center of Chemical Science and Engineering, Tianjin 300072, P. R. China

^⊥School of Physics and Engineering & State Key Laboratory of Optoelectronic Materials and Technologies, Sun Yat-sen University, 510275 Guangzhou, P. R. China

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 Δ = 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.

影响因子：

13.038

分区情况：

一区

链接：

http://pubs.acs.org/doi/abs/10.1021/ja511995r