Charge Transport in Single Oligophenylene Molecular Wires with Different Anchoring Groups

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F19%3A00505251" target="_blank" >RIV/61388955:_____/19:00505251 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Charge Transport in Single Oligophenylene Molecular Wires with Different Anchoring Groups
Original language description
This work compares single molecule conductance measurements of selected organic systems containing identical oligophenylene molecular wires and different tripodal anchoring groups. Single molecule conductance G was obtained by a scanning tunneling microscopy break junction technique complemented by theoretical calculations based on the density functional theory and non-equilibrium Green’s function formalism. Two molecules were compared where the same oligophenylene wire is connected to one of the electrodes via a tripod substituted on each leg by a thiol group either in the meta or para position. By combined experimental and theoretical analysis it was possible to confirm that single molecule conductance in the metal-molecule-metal junction of both molecules corresponds to a fully extended molecular wire, which is attached to one of the electrodes by all three thiolate bonds of the tripod. Experimental results confirmed that G value of meta-connected molecules is lower than that of para, whereas junction formation probability was higher for meta functionalization.
Czech name
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Czech description
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Project
<a href="/en/project/GA18-04682S" target="_blank" >GA18-04682S: Probing Electron Transport Mechanism in Single Molecule Junctions by Conductance and Thermoelectricity Measurements.</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
XXXIX. Moderní elektrochemické metody. Sborník přednášek
ISBN
978-80-905221-7-6
ISSN
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e-ISSN
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Number of pages
4
Pages from-to
96-99
Publisher name
Best Servis
Place of publication
Ústí nad Labem
Event location
Jetřichovice
Event date
May 20, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000583689900022

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