ICCAS OpenIR
Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level
Liu, Ke1,2; Wang, Xianhong1; Wang, Fosong1
2008-11-01
Source PublicationACS NANO
ISSN1936-0851
Volume2Issue:11Pages:2315-2323
AbstractA ruthenium(II) bis(sigma-arylacetylide)-complex-based molecular wire functionalized with thiolacetyl alligator clips at both ends (OPERu) was used to fabricate gold substrate-molecular wire-conductive tip junctions. To elucidate the ruthenium-complex-enhanced charge transport, we conducted a single-molecule level investigation using the technique-combination method, where electronic delay constant, single-molecular conductance, and barrier height were obtained by scanning tunneling microscopy (STM) apparent height measurements, STM break junction measurements, and conductive probe-atomic force microscopy (CP-AFM) measurements, respectively. A quantitative comparison of OPERu with the well-studied pi-conjugated molecular wire oligo(1,4-phenylene ethynylene) (OPE) indicated that the lower electronic decay constant as well as the higher conductance of OPERu resulted from its lower band gap between the highest occupied molecular orbital (HOMO) and the gold Fermi level. The small offset of 0.25 eV was expected to be beneficial for the long-range charge transport of molecular wires. Moreover, the observed cross-platform agreement proved that this technique-combination method could serve as a benchmark for the detailed description of charge transport through molecular wires.
KeywordRuthenium-complex-enhanced Charge Transport Scanning Tunneling Microscopy Conductive Probe-atomic Force Microscopy Technique-combination Method Electronic Decay Constant Single Molecular Conductance Barrier Height
DOI10.1021/nn800475a
Indexed BySCI
Language英语
WOS IDWOS:000261199400018
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:94[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/64320
Collection中国科学院化学研究所
Corresponding AuthorWang, Xianhong
Affiliation1.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Liu, Ke,Wang, Xianhong,Wang, Fosong. Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level[J]. ACS NANO,2008,2(11):2315-2323.
APA Liu, Ke,Wang, Xianhong,&Wang, Fosong.(2008).Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level.ACS NANO,2(11),2315-2323.
MLA Liu, Ke,et al."Probing Charge Transport of Ruthenium-Complex-Based Molecular Wires at the Single-Molecule Level".ACS NANO 2.11(2008):2315-2323.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Liu, Ke]'s Articles
[Wang, Xianhong]'s Articles
[Wang, Fosong]'s Articles
Baidu academic
Similar articles in Baidu academic
[Liu, Ke]'s Articles
[Wang, Xianhong]'s Articles
[Wang, Fosong]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Liu, Ke]'s Articles
[Wang, Xianhong]'s Articles
[Wang, Fosong]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.