Charge Transport through Molecular Towers Based on Tetraphenylmethane Tripods

0483336 - ÚOCHB 2018 RIV CZ eng C - Konferenční příspěvek (zahraniční konf.)
Kolivoška, V. - Šebera, Jakub - Lindner, M. - Valášek, M. - Mayor, M. - Mészáros, G. - Gasior, J. - Hromadová, M.
Charge Transport through Molecular Towers Based on Tetraphenylmethane Tripods.
XXXVII. Moderní elektrochemické metody. Sborník přednášek mezinárodní odborné konference. Ústí nad Labem: Best servis, 2017 - (Navrátil, T.; Fojta, M.; Schwarzová, K.), s. 99-103. ISBN 978-80-905221-5-2.
[Moderní elektrochemické metody /37./. Jetřichovice (CZ), 15.05.2017-19.05.2017]
Institucionální podpora: RVO:61388963
Klíčová slova: charge transport through single molecules * break junction technique * molecular electronics
Obor OECD: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Molecular platforms with multiple anchors were introduced recently to provide robust coupling between molecular electronic components and metallic electrodes. In this work, charge transport in tower-shaped single molecule conductors based on tetraphenylmethane tripod possessing three thiol anchors is investigated by scanning tunneling microscopy break junction technique. The effect of tripod substitution pattern and number of repeating units in molecule is addressed. The substitution was found to influence conductance value in early stages of molecular junction evolution, where tower lays parallel to surface. In late stages, the charge is transported through principal molecular axis and junction breaks thermally in tilted configuration.
Trvalý link: http://hdl.handle.net/11104/0278689