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Volumn 122, Issue 40, 2000, Pages 9750-9760

Detection of discrete interactions upon rupture of Au microcontacts to self-assembled monolayers terminated with -S(CO)CH3 or -SH

Author keywords

[No Author keywords available]

Indexed keywords

ACETIC ACID; ALCOHOL; GOLD; HYDROXYL GROUP; METAL OXIDE; PHOSPHONIC ACID DERIVATIVE; SOLVENT; SULFUR; THIOL;

EID: 0034638386     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja994524e     Document Type: Article
Times cited : (40)

References (78)
  • 29
    • 0007671299 scopus 로고    scopus 로고
    • γtip-substrate values near zero mean the adhesion is primarily caused by the solvent surface tension, whereas positive γtip-substrate values represent unfavorable tip-sample interactions and will reduce the measured pulloff force
  • 30
    • 0000161180 scopus 로고    scopus 로고
    • The ability to achieve good rupture force statistics has been improved recently by use of tipless cantilever and a microfabricated array of tips as the substrate. Many different chemical interactions can be sampled in the same session by this method
    • (1999) Appl. Phys. Lett. , vol.74 , pp. 1489
    • See Green, J.-B.D.1    Novoradovsky, A.2    Park, D.3    Lee, G.U.4
  • 45
    • 0007594860 scopus 로고    scopus 로고
    • Hereafter the term metal oxide (MOx) will be used for both AklOx and ITO where applicable
  • 48
    • 0007673025 scopus 로고    scopus 로고
    • RAIRS spectra of SAMs of III and IV were identical with those of I and II with the exception of peaks due to different end groups
  • 55
    • 0007666824 scopus 로고    scopus 로고
    • In a control experiment, 5 mM solution of hexanethiol in ethanol was injected into the fluid cell, resulting in the average adhesion force between a SAM of I and an Au-coated AFM tip dropping from ~0.6 nN to ~0.1 nN
  • 59
    • 0007707066 scopus 로고    scopus 로고
    • We acknowledge that an Au surface immediately becomes covered with organic contaminants upon exposure to air. The interfacial energies with Au that we report here reflect this adsorption to a varying degree depending on the ability of the solvent to dissolve the contaminants
  • 60
    • 0007595925 scopus 로고    scopus 로고
    • Experiments with SAMs of I on Al-coated AFM probes in contact with Au-coated substrates in ethanol showed an average rupture force of 0.2 nN with no visible force quanta. This is consistent with the Scheme 2b mechanism, because in this case the tip rapidly becomes covered with thiolate-complexed Au, effectively blocking formation of new Au/S-acetate interactions in consecutive microcontacts
  • 77
    • 0007673027 scopus 로고    scopus 로고
    • note


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.