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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1021/la204340n
|2 doi
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|a pubmed24n0716.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Wei, Zhongming
|e verfasserin
|4 aut
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|a Molecular junctions based on SAMs of cruciform oligo(phenylene ethynylene)s
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 13.06.2012
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|a Date Revised 28.02.2012
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2012 American Chemical Society
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|a Cruciform oligo(phenylene ethynylene)s (OPEs) with an extended tetrathiafulvalene (TTF) donor moiety (OPE5-TTF and OPE3-TTF) and their simple analogues (OPE5-S and OPE3) without conjugated substituents were used to form high-quality self-assembled monolayers (SAMs) on ultraflat gold substrates. Molecular junctions based on these SAMs were investigated using conducting-probe atomic force microscopy (CP-AFM). The TTF substituent changes the molecular orbital energy levels and decreases the HOMO-LUMO energy gap, resulting in a 9-fold increase in conductance for both TTF cruciform OPEs compared to the unsubstituted analogues. The difference in electrical transport properties of the SAMs was reproduced by the theoretical transport calculations for the single molecules
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|a Journal Article
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|a Li, Tao
|e verfasserin
|4 aut
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|a Jennum, Karsten
|e verfasserin
|4 aut
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|a Santella, Marco
|e verfasserin
|4 aut
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|a Bovet, Nicolas
|e verfasserin
|4 aut
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|a Hu, Wenping
|e verfasserin
|4 aut
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|a Nielsen, Mogens Brøndsted
|e verfasserin
|4 aut
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|a Bjørnholm, Thomas
|e verfasserin
|4 aut
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|a Solomon, Gemma C
|e verfasserin
|4 aut
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|a Laursen, Bo W
|e verfasserin
|4 aut
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|a Nørgaard, Kasper
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 28(2012), 8 vom: 28. Feb., Seite 4016-23
|w (DE-627)NLM098181009
|x 1520-5827
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| 773 |
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|g volume:28
|g year:2012
|g number:8
|g day:28
|g month:02
|g pages:4016-23
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