Predictive Model for the Meniscus-Guided Coating of High-Quality Organic Single-Crystalline Thin Films

Robby Janneck; Federico Vercesi; Paul Heremans; Jan Genoe; Cedric Rolin

doi:10.1002/adma.201602377

Predictive Model for the Meniscus-Guided Coating of High-Quality Organic Single-Crystalline Thin Films

Adv Mater. 2016 Sep;28(36):8007-8013. doi: 10.1002/adma.201602377. Epub 2016 Jul 5.

Authors

Robby Janneck^{1

2}, Federico Vercesi³, Paul Heremans^{3

4}, Jan Genoe^{3

4}, Cedric Rolin³

Affiliations

¹ IMEC, Kapeldreef 75, Leuven, B-3001, Belgium. robby.janneck@imec.be.
² KU Leuven, ESAT, Kasteelpark Arenberg 10, Leuven, B-3001, Belgium. robby.janneck@imec.be.
³ IMEC, Kapeldreef 75, Leuven, B-3001, Belgium.
⁴ KU Leuven, ESAT, Kasteelpark Arenberg 10, Leuven, B-3001, Belgium.

PMID: 27377034
DOI: 10.1002/adma.201602377

Abstract

A model that describes solvent evaporation dynamics in meniscus-guided coating techniques is developed. In combination with a single fitting parameter, it is shown that this formula can accurately predict a processing window for various coating conditions. Organic thin-film transistors (OTFTs), fabricated by a zone-casting setup, indeed show the best performance at the predicted coating speeds with mobilities reaching 7 cm² V^-1 s^-1 .

Keywords: C8-BTBT; TIPS-pentacene; field-effect mobility; meniscus-guided coating; organic transistors; single crystals; zone casting.