Highly ordered structural organization of organic semiconductor monolayers on HOPG and Au(111) - STM studies of alkylphenyl N-substituted perylene diimide at liquid–solid interface

M. Knor , R. Nowakowski , A. Maranda-Niedbała , Paweł Gawryś , Małgorzata Zagórska , Adam Proń

Abstract

Scanning tunneling microscopy was used to investigate self-organization in mono- or multilayers of an organic semiconductor used for the fabrication of n-channel field effect transistors, namely N,N′-bis(4-n-butylphenyl)-perylene-3,4:9,10-tetracarboxylic-diimide (4-n-BuPh-PTCDI). Two types of substrates were used: HOPG and reconstructed Au(111). All investigations were performed at liquid–solid interface in a trichlorobenzene solution. Monolayers deposited directly on the HOPG show a brick-wall organization with individual molecules lying flat on the substrate surface (the planes of aromatic cores being parallel to this surface). Monolayers obtained by controlled dissolution of a previously deposited multilayer show a different 2D organization in which individual molecules are in the edge-on position i.e. stand perpendicular to the substrate surface with their long axis parallel to it. This finding clearly demonstrates the effect of the upper-lying layers on the first monolayer which changes the balance in the molecule–substrate and molecule–molecule interactions, leading to a rotation of the molecules in the first layer. A very similar structure of densely packed molecules, oriented perpendicular to the substrate, is also found for the monolayer deposited on the Au(111) surface. © 2012 Elsevier B.V. All rights reserved
Author M. Knor - [Institute of Physical Chemistry of the Polish Academy of Sciences]
M. Knor,,
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, R. Nowakowski - [Institute of Physical Chemistry of the Polish Academy of Sciences]
R. Nowakowski,,
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, A. Maranda-Niedbała - [Institute of Physical Chemistry of the Polish Academy of Sciences]
A. Maranda-Niedbała,,
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, Paweł Gawryś (FC / CPCT)
Paweł Gawryś,,
- Chair Of Polymer Chemistry And Technology
, Małgorzata Zagórska (FC / CPCT)
Małgorzata Zagórska,,
- Chair Of Polymer Chemistry And Technology
, Adam Proń (FC / CPCT)
Adam Proń,,
- Chair Of Polymer Chemistry And Technology
Journal seriesSurface Science, ISSN 0039-6028
Issue year2013
Vol607
Pages61-67
Publication size in sheets0.5
Keywords in Englishperylene diimide, scanning tunneling microscopy, self-organization, organic electronics, organic semiconductors
ASJC Classification2505 Materials Chemistry; 2508 Surfaces, Coatings and Films; 3110 Surfaces and Interfaces; 3104 Condensed Matter Physics
DOIDOI:10.1016/j.susc.2012.08.011
URL http://www.sciencedirect.com/science/article/pii/S0039602812003007
Languageen angielski
File
surfacescience_2013_607_61.pdf 2.02 MB
Score (nominal)25
Score sourcejournalList
ScoreMinisterial score = 25.0, 25-07-2020, ArticleFromJournal
Ministerial score (2013-2016) = 25.0, 25-07-2020, ArticleFromJournal
Publication indicators WoS Citations = 4; Scopus Citations = 5; GS Citations = 6.0; Scopus SNIP (Source Normalised Impact per Paper): 2014 = 0.888; WoS Impact Factor: 2013 = 1.87 (2) - 2013=1.876 (5)
Citation count*6 (2020-09-15)
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