Impact of the Marangoni effect on the polymer thin film thickness profile after drying polymer solution coated on a flat substrate

Hiroyuki Kagami

doi:10.1117/12.2023864

26 September 2013 Impact of the Marangoni effect on the polymer thin film thickness profile after drying polymer solution coated on a flat substrate

Hiroyuki Kagami

Author Affiliations +

Proceedings Volume 8816, Nanoengineering: Fabrication, Properties, Optics, and Devices X; 881606 (2013) https://doi.org/10.1117/12.2023864
Event: SPIE NanoScience + Engineering, 2013, San Diego, California, United States

Abstract

Drying process of polymer solution coated on a flat substrate is very important in various industrial applications. Then we have proposed and modified a model of drying process of polymer solution coated on a flat substrate for flat polymer film fabrication. In the previous study, we added Marangoni effect as pseudo-negative diffusion on an upper gas-liquid interface to the former model. And we saw through numerical simulation of the modified model that solute on upper gas-liquid interface was attracted more strongly to the edge due to Marangoni effect. In this study, we show that this effect is remarkable on upper gas-liquid interface, while the effect extends to sufficiently inside of the polymer solution film.

Citation Download Citation

Hiroyuki Kagami "Impact of the Marangoni effect on the polymer thin film thickness profile after drying polymer solution coated on a flat substrate", Proc. SPIE 8816, Nanoengineering: Fabrication, Properties, Optics, and Devices X, 881606 (26 September 2013); https://doi.org/10.1117/12.2023864

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