In-situ scrutiny of the relationship between polymorphic phases and properties of self-assembled monolayers of a biphenyl based thiol
Paradinas, Markos (Institut Català de Nanociència i Nanotecnologia)
Munuera, Carmen (Institut de Ciència de Materials de Barcelona)
Buck, Manfred (University of St. Andrews. EaStCHEM School of Chemistry)
Ocal García, Carmen (Institut de Ciència de Materials de Barcelona)

Date:	2018
Abstract:	Two polymorphic phases of ω-(4'-methylbiphenyl-4-yl) butane-1-thiol (BP4) molecules formed on Au(111) were investigated by multidimensional atomic force microscopy, combining conductivity measurements, electrostatic characterization, friction force mapping, and normal force spectroscopy. Based on the same molecular structure but differing in molecular order, packing density, and molecular tilt, the two phases serve as a test bench to establish the structure-property relationships in self-assembled monolayers (SAMs). From a detailed analysis of the charge transport and electrostatics, the contributions of geometrical and electronic effects to the tunneling are discussed.
Grants:	Ministerio de Economía y Competitividad MAT2013-47869-C4-1-P Agencia Estatal de Investigación MAT2016-77852-C2-1-R Agència de Gestió d'Ajuts Universitaris i de Recerca 2014/SGR-501 Ministerio de Economía y Competitividad MAT2015-68994-REDC Ministerio de Economía y Competitividad SEV-2015-0496 Ministerio de Ciencia e Innovación BES-2008-003588 Ministerio de Economía y Competitividad PTA2014-09788-I Ministerio de Economía y Competitividad RYC-2014-16626
Rights:	Aquest material està protegit per drets d'autor i/o drets afins. Podeu utilitzar aquest material en funció del que permet la legislació de drets d'autor i drets afins d'aplicació al vostre cas. Per a d'altres usos heu d'obtenir permís del(s) titular(s) de drets.
Language:	Anglès
Document:	Article ; recerca ; Versió sotmesa a revisió
Subject:	Conductivity measurements ; Electronic effects ; Electrostatic characterization ; Molecular ordering ; Molecular tilt ; Packing density ; Polymorphic phasis ; Structure property relationships
Published in:	Journal of physical chemistry B, Vol. 122, Issue 2 (January 2018) , p. 657-665, ISSN 1520-5207

DOI: 10.1021/acs.jpcb.7b05958
PMID: 28777570

Preprint 33 p, 804.3 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Catalan Institute of Nanoscience and Nanotechnology (ICN2)
Articles > Research articles
Articles > Published articles