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Patterned growth of organic small-molecule layers

Published online by Cambridge University Press:  17 March 2011

Soeren Steudel ,
Dimitri Janssen ,
Stijn Verlaak  and
Paul Heremans
Soeren Steudel
Affiliation:
Department of Electrical Engineering, Katholieke Universiteit Leuven, Belgium
Dimitri Janssen
Affiliation:
Department of Chemistry, Katholieke Universiteit Leuven, Belgium
Stijn Verlaak
Affiliation:
Department of Electrical Engineering, Katholieke Universiteit Leuven, Belgium
Paul Heremans
Affiliation:
Polymer and Molecular Electronics group, IMEC, Kapeldreef 75, B-3001 Leuven, Belgium
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Abstract

We will demonstrate a novel approach to the problem of patterning organic small molecule layers, which is compatible with printing techniques. By locally changing the chemistry of the dielectric surface by means of Self-Assembly Monolayers (SAM), we predefine active and passive areas of the circuit. The subsequent growth of the organic film by sublimation takes place under growth conditions which cause the formation of a high-mobility, well- connected two-dimensional (2D) grains in the predefined active area contrasting with ill- connected, low-mobility 3D-grains in the passive area. We will explain this patterned growth in terms of a microscopic theory of nucleation of organic semiconductor on inert substrates and present experimental results.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 814: Symposium I – Flexible Electronics 2004-Materials and Device Technology , 2004 , I12.6
Copyright
Copyright © Materials Research Society 2004

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References

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