Scalable, ambient atmosphere roll-to-roll manufacture of encapsulated large area, flexible organic tandem solar cell modules

Language
en
Document Type
Article
Issue Date
2016-10-04
Issue Year
2014
Authors
Andersen, Thomas R.
Dam, Henrik F.
Hösel, Markus
Helgesen, Martin
Carlé, Jon E.
Larsen-Olsen, Thue T.
Gevorgyan, Suren A.
Andreasen, Jens W.
Adams, Jens
Li, Ning
Editor
Abstract

Inline printing and coating methods have been demonstrated to enable a high technical yield of fully roll-to-roll processed polymer tandem solar cell modules. We demonstrate generality by employing different material sets and also describe how the ink systems must be carefully co-developed in order to reach the ambitious objective of a fully printed and coated 14-layer flexible tandem solar cell stack. The roll-to-roll methodologies involved are flexographic printing, rotary screen printing, slot-die coating, X-ray scattering, electrical testing and UV-lamination. Their combination enables the manufacture of completely functional devices in exceptionally high yields. Critical to the ink and process development is a carefully chosen technology transfer to industry method where first a roll coater is employed enabling contactless stack build up, followed by a small roll-to-roll coater fitted to an X-ray machine enabling in situ studies of wet ink deposition and drying mechanisms, ultimately elucidating how a robust inline processed recombination layer is key to a high technical yield. Finally, the transfer to full roll-to-roll processing is demonstrated.

Journal Title
Energy & Environmental Science
Volume
7
Issue
9
Citation
Energy & Environmental Science 7.9 (2014): S. 2925-2933. <http://pubs.rsc.org/en/content/articlelanding/2014/ee/c4ee01223b#!divAbstract>
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