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

Janneck, Robby; Vercesi, Federico; Heremans, Paul; Genoe, Jan; Rolin, Cedric · Adv Mater · 2016

basic_science · Level V

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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 cm<sup>2</sup> V<sup>-1</sup> s<sup>-1</sup> .