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Processing Follows Function: Pushing the Formation of Self-Assembled Monolayers to High-Throughput Compatible Time Scales

Alt, Milan ; Schinke, Janusz ; Hillebrandt, Sabina ; Hänsel, Marc ; Hernandez-Sosa, Gerardo ; Mechau, Norman ; Glaser, Tobias ; Mankel, Eric ; Hamburger, Manuel ; Deing, Kaja ; Jaegermann, Wolfram ; Pucci, Annemarie ; Kowalsky, Wolfgang ; Lemmer, Uli ; Lovrincic, Robert :
Processing Follows Function: Pushing the Formation of Self-Assembled Monolayers to High-Throughput Compatible Time Scales.
[Online-Edition: http://dx.doi.org/10.1021/am5057689]
In: ACS Applied Materials & Interfaces, 6 (22) pp. 20234-20241. ISSN 1944-8244
[Artikel], (2014)

Offizielle URL: http://dx.doi.org/10.1021/am5057689

Kurzbeschreibung (Abstract)

Self-assembled monolayers (SAMs) of organic molecules can be used to tune interface energetics and thereby improve charge carrier injection at metal–semiconductor contacts. We investigate the compatibility of SAM formation with high-throughput processing techniques. Therefore, we examine the quality of SAMs, in terms of work function shift and chemical composition as measured with photoelectron and infrared spectroscopy and in dependency on molecular exposure during SAM formation. The functionality of the SAMs is determined by the performance increase of organic field-effect transistors upon SAM treatment of the source/drain contacts. This combined analytical and device-based approach enables us to minimize the necessary formation times via an optimization of the deposition conditions. Our findings demonstrate that SAMs composed of partially fluorinated alkanethiols can be prepared in ambient atmosphere from ethanol solution using immersion times as short as 5 s and still exhibit almost full charge injection functionality if process parameters are chosen carefully. This renders solution-processed SAMs compatible with high-throughput solution-based deposition techniques.

Typ des Eintrags: Artikel
Erschienen: 2014
Autor(en): Alt, Milan ; Schinke, Janusz ; Hillebrandt, Sabina ; Hänsel, Marc ; Hernandez-Sosa, Gerardo ; Mechau, Norman ; Glaser, Tobias ; Mankel, Eric ; Hamburger, Manuel ; Deing, Kaja ; Jaegermann, Wolfram ; Pucci, Annemarie ; Kowalsky, Wolfgang ; Lemmer, Uli ; Lovrincic, Robert
Titel: Processing Follows Function: Pushing the Formation of Self-Assembled Monolayers to High-Throughput Compatible Time Scales
Sprache: Englisch
Kurzbeschreibung (Abstract):

Self-assembled monolayers (SAMs) of organic molecules can be used to tune interface energetics and thereby improve charge carrier injection at metal–semiconductor contacts. We investigate the compatibility of SAM formation with high-throughput processing techniques. Therefore, we examine the quality of SAMs, in terms of work function shift and chemical composition as measured with photoelectron and infrared spectroscopy and in dependency on molecular exposure during SAM formation. The functionality of the SAMs is determined by the performance increase of organic field-effect transistors upon SAM treatment of the source/drain contacts. This combined analytical and device-based approach enables us to minimize the necessary formation times via an optimization of the deposition conditions. Our findings demonstrate that SAMs composed of partially fluorinated alkanethiols can be prepared in ambient atmosphere from ethanol solution using immersion times as short as 5 s and still exhibit almost full charge injection functionality if process parameters are chosen carefully. This renders solution-processed SAMs compatible with high-throughput solution-based deposition techniques.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: ACS Applied Materials & Interfaces
Band: 6
(Heft-)Nummer: 22
Verlag: ACS Publications
Freie Schlagworte: self-assembled-monolayers; functional printing; organic electronics; organic field effect transistors; photoelectron spectroscopy; infrared spectroscopy
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Oberflächenforschung / Surface Science
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 26 Feb 2015 09:56
Offizielle URL: http://dx.doi.org/10.1021/am5057689
ID-Nummer: 10.1021/am5057689
Sponsoren: The authors acknowledge financial support via the MORPHEUS project (FKZ: 13N11701-13N11706) of the Leading-Edge Cluster Forum Organic Electronics managed by InnovationLab GmbH within the High-Tech Strategy for Germany of the Federal Ministry of Education
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