ICCAS OpenIR
Tunneling characteristics of octadecyl derivatives on tin and indium electrodes
Liu, YH; Fan, XL; Yang, DL; Wang, C; Wan, LJ; Bai, CL
2004-02-03
Source PublicationLANGMUIR
ISSN0743-7463
Volume20Issue:3Pages:855-861
AbstractIn this paper we report the tunneling behavior based on the capillary tunnel junctions of n-octadecylmercaptan (C18H37SH), octadecylamine (C18H37NH2), nonadecanoic acid (C17H35COOH), octadecanol(C18H35COOH), and n-iodooctadecane (C(18)h(37)I), sandwiched between tin and indium electrodes utilizing the naturally existing oxide surfaces, respectively. The surfaces of the electrodes were examined by X-ray diffraction (XRD), atomic force microscopy (AFM), and X-ray photoelectron spectroscopy (XPS) methods, and the self-assembled monolayers adsorbed on the electrode surfaces were inspected by contact angle measurements and XPS. The measured characteristic curves on tin electrode indicated a sequence of energy gaps associated with the specimen: DeltaC(17)H(35)COOH > DeltaC(18)H(37)OH > DeltaC(18)H(37)SH > DeltaC(18)H(37)NH(2) > DeltaC(18)H(37)I. The results on the energy gaps obtained on indium electrodes displayed similar sequence behavior although with different gap values. The experimental observations indicate that the molecule-electrode contact, including both the functional groups and substrates, could contribute jointly to the overall conductance characteristics of molecular junctions.
DOI10.1021/la0353529
Indexed BySCI
Language英语
WOS IDWOS:000188660600047
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:5[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/82404
Collection中国科学院化学研究所
Corresponding AuthorWang, C
Affiliation1.Chinese Acad Sci, Inst Chem, Ctr Mol Sci, Beijing 100080, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing, Peoples R China
Recommended Citation
GB/T 7714
Liu, YH,Fan, XL,Yang, DL,et al. Tunneling characteristics of octadecyl derivatives on tin and indium electrodes[J]. LANGMUIR,2004,20(3):855-861.
APA Liu, YH,Fan, XL,Yang, DL,Wang, C,Wan, LJ,&Bai, CL.(2004).Tunneling characteristics of octadecyl derivatives on tin and indium electrodes.LANGMUIR,20(3),855-861.
MLA Liu, YH,et al."Tunneling characteristics of octadecyl derivatives on tin and indium electrodes".LANGMUIR 20.3(2004):855-861.
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