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Volumn 106, Issue 11, 2002, Pages 2813-2816

Distance dependence of electron tunneling through self-assembled monolayers measured by conducting probe atomic force microscopy: Unsaturated versus saturated molecular junctions

Author keywords

[No Author keywords available]

Indexed keywords

MOLECULAR JUNCTIONS;

EID: 0037149819     PISSN: 10895647     EISSN: None     Source Type: Journal    
DOI: 10.1021/jp013476t     Document Type: Article
Times cited : (480)

References (61)
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    • (1969) Tunneling Phenomena in Solids , vol.1
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  • 2
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    • Molecular excitations in barriers
    • Burstein, E., Lundqvist, S., Eds.; Plenum Press: New York
    • (b) Lambe, J.; Jaklevic, R.C. Molecular Excitations in Barriers 2 In Tunneling Phenomena in Solids; Burstein, E., Lundqvist, S., Eds.; Plenum Press: New York, 1969.
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  • 29
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    • note
    • A key difficulty in calculating I-V characteristics is estimation of the Fermi level position relative to the molecular frontier orbitals. Typically, the Fermi level position is taken as a fitting parameter in comparisons of theoretical and experimental I-V characteristics. Recent theoretical work on molecular junctions is found in ref 7.
  • 37
    • 84955367972 scopus 로고    scopus 로고
    • Electron transfer in metalloproteins
    • Balzani, V., Ed.; Wiley-VCH: Weinheim, Germany
    • (a) Gray, H.B.; Winkler, J.R. Electron Transfer in Metalloproteins. In Electron Transfer in Chemistry; Balzani, V., Ed.; Wiley-VCH: Weinheim, Germany, 2001; Vol. III, p 3.
    • (2001) Electron Transfer in Chemistry , vol.3 , pp. 3
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  • 39
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    • Covalently linked systems containing metal complexes
    • Balzani, V., Ed.; Wiley-VCH: Weinheim, Germany
    • (a) Scandola, F.; Chiorboli, C.; Indelli, M.T.; Rampi, M.A. Covalently Linked Systems Containing Metal Complexes. In Electron Transfer in Chemistry; Balzani, V., Ed.; Wiley-VCH: Weinheim, Germany, 2001; Vol. III, p 337.
    • (2001) Electron Transfer in Chemistry , vol.3 , pp. 337
    • Scandola, F.1    Chiorboli, C.2    Indelli, M.T.3    Rampi, M.A.4
  • 52
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    • The synthesis of I-III followed procedures in: Tao, Y.T.; Wu, C.C.; Eu, J.Y.; Lin, W.L. Langmuir 1997, 13, 4018-4023. Brown, T.J.; Chapman, R.F.; Cook, D.C.; Hart, T.W.; McLay, I.M. J. Med. Chem. 1992, 35, 3613-3524. Monolayers of I-III were formed by immersion of evaporated Au films (1000 Å Au/50 Å Cr) on Si substrates into 0.5 mM solutions of I-III in toluene for 12 h. Alkanethiol SAMs were formed from 1 mM ethanolic solutions.
    • (1997) Langmuir , vol.13 , pp. 4018-4023
    • Tao, Y.T.1    Wu, C.C.2    Eu, J.Y.3    Lin, W.L.4
  • 53
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    • -1, we must assume either that tunneling occurs along the length of the molecules or across the thickness of the SAM. Molecular length and SAM thickness are not equivalent because the oligophenylene thiolate molecules on Au are tilted (see: Himmel, H.-J.; Terfort, A.; Woll, Ch. J. Am. Chem. Soc. 1998, 120, 12069-12074). On the basis of the extensive literature on intramolecular electron transfer (see refs 9 and 10), we have assumed that tunneling is "through-bond", that is, along the length of the molecule.
    • (1998) J. Am. Chem. Soc. , vol.120 , pp. 12069-12074
    • Himmel, H.-J.1    Terfort, A.2    Woll, Ch.3
  • 54
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    • note
    • Molecular lengths of I-III were calculated by MM2 (Chem 3D) software, adding 2.3 Å for the Au-S bond and 1.0 Å for the Van der Waals radius of the terminal H. The mono-, di- and terphenyl thiolates bonded to Au have lengths of 9.57, 13.80, and 18.15 Å, respectively.
  • 57
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    • note
    • 3 group. The lengths of alkanethiolates on Au with 2, 4, 6, and 8 carbons were calculated to be 5.86, 8.35, 10.85, and 13.35 Å, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.