Source:http://linkedlifedata.com/resource/pubmed/id/12801654
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1-4
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pubmed:dateCreated |
2003-6-12
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pubmed:abstractText |
It is important to understand an electronic property of an interface between an organic material and a metal electrode. In the present work, we measured current-voltage (I-V) curves of self-assembled monolayers (SAMs) on Au(111) using a conducting atomic force microscope (AFM) with chemically modified Au-coated AFM tips. This contact resulted in a bilayer junction between the Au(111) substrate covered with one SAM and the Au-coated tip with the other SAM. An alkanethiol (octanethiol) and benzenemethanethiols with various terminal groups (-H, -CH(3), -Cl, -CF(3)) were used as the adsorbates. The shapes of the I-V curves depended on the terminal groups. This phenomenon was attributed to the change in the work function of gold due to different permanent dipole moments of the terminal groups.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:status |
PubMed-not-MEDLINE
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pubmed:issn |
0304-3991
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
97
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
27-33
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pubmed:articleTitle |
The effect of permanent dipole moments of adsorbates upon I-V characteristics of a bilayer tunneling junction between self-assembled monolayers on an Au(111) substrate and a gold tip.
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pubmed:affiliation |
Department of Biomolecular Engineering, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8501, Japan.
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pubmed:publicationType |
Journal Article
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