Growth study of para-sexiphenyl on Ag(001): From single molecule to crystalline film

Michael Hollerer, Stefan Pachmajer, Daniel Lüftner, Boris Butej, Eva Maria Reinisch, Peter Puschnig, Georg Koller, Michael G. Ramsey, Martin Sterrer

Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

Abstract

In this work we investigate the formation of crystalline organic thin films for p-sexiphenyl (6P) on Ag(001) with a combination of STM, LEED, TPD, SFM, UPS, XRD and DFT. For weakly interacting van-der-Waals-dominated systems of small organic molecules on single crystalline metals we demonstrate the complex epitaxial evolution from sub-monolayer to bulk structure. In the delicate interplay between molecule-substrate and intermolecular interactions we identify the oligo-phenyl's flexibility of central importance for the film growth. We observe a change from a planar to a twisted molecular conformation and, accompanying, a molecular realignment during the formation of a dense monolayer as the result of enhanced 2-dimensional intermolecular interaction. A second molecular realignment occurs collectively for whole domains with the formation of 3-dimensional bilayer structures. Finally the bilayer acts as a template for the epitaxial growth of the molecular thin film, determining the azimuthal orientation and a single contact plane for the organic crystallites.

Originalspracheenglisch
Seiten (von - bis)149-156
Seitenumfang8
FachzeitschriftSurface science
Jahrgang678
DOIs
PublikationsstatusVeröffentlicht - 1 Dez 2018

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Monolayers
Crystalline materials
Thin films
Molecules
Coordination Complexes
Film growth
Temperature programmed desorption
Crystallites
Epitaxial growth
Discrete Fourier transforms
Conformations
molecules
thin films
trucks
crystallites
flexibility
Substrates
templates
Metals
interactions

Schlagwörter

    ASJC Scopus subject areas

    • !!Condensed Matter Physics
    • !!Surfaces and Interfaces
    • !!Surfaces, Coatings and Films
    • !!Materials Chemistry

    Dies zitieren

    Growth study of para-sexiphenyl on Ag(001) : From single molecule to crystalline film. / Hollerer, Michael; Pachmajer, Stefan; Lüftner, Daniel; Butej, Boris; Reinisch, Eva Maria; Puschnig, Peter; Koller, Georg; Ramsey, Michael G.; Sterrer, Martin.

    in: Surface science, Jahrgang 678, 01.12.2018, S. 149-156.

    Publikation: Beitrag in einer FachzeitschriftArtikelForschungBegutachtung

    Hollerer, M, Pachmajer, S, Lüftner, D, Butej, B, Reinisch, EM, Puschnig, P, Koller, G, Ramsey, MG & Sterrer, M 2018, 'Growth study of para-sexiphenyl on Ag(001): From single molecule to crystalline film' Surface science, Jg. 678, S. 149-156. https://doi.org/10.1016/j.susc.2018.04.017
    Hollerer, Michael ; Pachmajer, Stefan ; Lüftner, Daniel ; Butej, Boris ; Reinisch, Eva Maria ; Puschnig, Peter ; Koller, Georg ; Ramsey, Michael G. ; Sterrer, Martin. / Growth study of para-sexiphenyl on Ag(001) : From single molecule to crystalline film. in: Surface science. 2018 ; Jahrgang 678. S. 149-156.
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    AU - Lüftner, Daniel

    AU - Butej, Boris

    AU - Reinisch, Eva Maria

    AU - Puschnig, Peter

    AU - Koller, Georg

    AU - Ramsey, Michael G.

    AU - Sterrer, Martin

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