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Proceedings Paper

Four-terminal organic solar cell modules with increased annual energy yield
Author(s): Robert Gehlhaar; David Cheyns; Luuk Van Willigenburg; Afshin Hadipour; Jan Gilot; Roshanak Radbeh; Tom Aernouts
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Paper Abstract

The authors present experimental results on mechanically stacked organic solar modules and their advantage over standard tandem architectures. A four-terminal configuration of two single junction modules with complementary absorbing active layers uses the more efficient energy conversion of a tandem structure without the necessity of matching currents or voltages of electrically connected subcells. The presented combination of semitransparent and opaque solar cells consists of solution processed polymer-fullerene blends as active materials. A cost-effective mechanical scribing process is applied for the patterning of the deposited layers. The best devices have an efficiency of over 6.5% on an aperture area of 16 cm2 which equals a gain of 30% over the best single junction module fabricated by the same process. Optical simulations demonstrate a 32% increased annual energy output of a mechanically stacked device in comparison to a monolithic tandem structure using an equivalent geometry.

Paper Details

Date Published: 17 October 2013
PDF: 13 pages
Proc. SPIE 8830, Organic Photovoltaics XIV, 88300I (17 October 2013); doi: 10.1117/12.2024023
Show Author Affiliations
Robert Gehlhaar, IMEC (Belgium)
David Cheyns, IMEC (Belgium)
Luuk Van Willigenburg, IMEC (Belgium)
Afshin Hadipour, IMEC (Belgium)
Jan Gilot, Holst Ctr. (Netherlands)
Roshanak Radbeh, Solvay, MDA (Belgium)
Tom Aernouts, IMEC (Belgium)

Published in SPIE Proceedings Vol. 8830:
Organic Photovoltaics XIV
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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