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In-line, roll-to-roll morphology analysis of organic solar cell active layers

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Abstract

We present the first comparative in situ small and wide angle X-ray scattering study of two polymers that are relevant for organic photovoltaics, during coating on a flexible substrate. From the obtained measurements we identified several differences between the drying of the two polymers. The polymer optimized for roll-to-roll coating attained its final morphological packing nearly instantly after deposition, and had the shortest drying profile. We therefore conclude that fast-drying polymers which are influenced less by drying temperature or substrate inhomogeneities are better suited for roll-to-roll coating, and that fundamentally, the kinetics of drying dominate the process in the case of roll-to-roll slot-die coating.

Graphical abstract: In-line, roll-to-roll morphology analysis of organic solar cell active layers

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Publication details

The article was received on 07 Jul 2017, accepted on 28 Sep 2017 and first published on 28 Sep 2017


Article type: Paper
DOI: 10.1039/C7EE01900A
Citation: Energy Environ. Sci., 2017, Advance Article
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    In-line, roll-to-roll morphology analysis of organic solar cell active layers

    L. H. Rossander, H. F. Dam, J. E. Carlé, M. Helgesen, I. Rajkovic, M. Corazza, F. C. Krebs and J. W. Andreasen, Energy Environ. Sci., 2017, Advance Article , DOI: 10.1039/C7EE01900A

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