% IMPORTANT: The following is UTF-8 encoded. This means that in the presence
% of non-ASCII characters, it will not work with BibTeX 0.99 or older.
% Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or
% “biber”.
@ARTICLE{Li:53215,
author = {Li, Z. and Pobelov, I. and Han, B. and Wandlowski, Th. and
Blaszcyk, A. and Mayor, M.},
title = {{C}onductance of redox-active single molecular junctions:
an electrochemical approach},
journal = {Nanotechnology},
volume = {18},
issn = {0957-4484},
address = {Bristol},
publisher = {IOP Publ.},
reportid = {PreJuSER-53215},
pages = {044018},
year = {2007},
note = {Record converted from VDB: 12.11.2012},
abstract = {The conductance of molecular junctions formed of N,
N'-bis(n-thioalkyl)4,4'-bipyridinium bromides or
alkanedithiols between a gold (Au) scanning tunnelling
microscope tip and a Au(111)-(1x1) electrode has been
studied at electrified solid/liquid interfaces. A
statistical analysis based on large sets of individual
current - distance traces was applied to obtain the
electrical conductance of single junctions. The one-electron
reduction of the viologen moiety from the dication V2+ to
the radical cation state V+. gives rise to a $50\%$ increase
of the junction conductance. Increasing the length of the
alkyl spacer units leads to a tunnelling decay constant
ss(CH2) = 5.9-6.1 nm(-1). This value is significantly lower
than ss(CH2) = 8.2 nm(-1) estimated for molecular junctions
of alkanedithiols. The difference is attributed to
conformational changes within the two junctions. The contact
conductance was estimated to 10 mu S.},
keywords = {J (WoSType)},
cin = {CNI / IBN-3 / JARA-FIT},
ddc = {530},
cid = {I:(DE-Juel1)VDB381 / I:(DE-Juel1)VDB801 /
$I:(DE-82)080009_20140620$},
pnm = {Grundlagen für zukünftige Informationstechnologien},
pid = {G:(DE-Juel1)FUEK412},
shelfmark = {Nanoscience $\&$ Nanotechnology / Materials Science,
Multidisciplinary / Physics, Applied},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000243841000019},
doi = {10.1088/0957-4484/18/4/044018},
url = {https://juser.fz-juelich.de/record/53215},
}