| Literature DB >> 25775004 |
Haiming Zhang1, Haiping Lin, Kewei Sun, Long Chen2,3, Yulian Zagranyarski2, Nabi Aghdassi, Steffen Duhm, Qing Li, Dingyong Zhong1, Youyong Li, Klaus Müllen2, Harald Fuchs1, Lifeng Chi.
Abstract
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.Entities:
Year: 2015 PMID： 25775004 DOI： 10.1021/ja511995r
Source DB: PubMed Journal: J Am Chem Soc ISSN： 0002-7863 Impact factor: 15.419