Title
The use of polyurethane as encapsulating method for polymer solar cells – an inter laboratory study on outdoor stability in 8 countries
Author
Sommeling, P.M.
Tuladhar, S.M.
Veenstra, S.C.
Nelson, J.
Lira-Cantu, M.
Zimmermann, B.
Wuerfel, U.
Lianos, P.
Sondergaard, R.R.
Makris, T.
Manor, A.
Katz, E.A.
Gong, W.
Tuomi, R.
Rivaton, A.
Dupuis, A.
Teran-Escobar, G.
Sapkota, B
Matzarakis, A.
Krebs, F.C.
Publication year
2012
Abstract
A new encapsulation method for organic solar cells has been tested on flexible solar modules and cells embedded in polyurethane,sandwiched between a tempered glass plate and a polycarbonate plate. Panels, each containing 10 organic solar modules/cells, were fabricated and installed for outdoor exposure in eight different countries for 4½ months. In order to minimize potential deviations in procedures and equipment, one person was responsible for the fabrication, installation and initial and final IV-measurements of the panels using the same equipment for all measurements and calibrations. The encapsulated modules/cells showed significantly reduced degradation compared with previous studies, with final average efficiencies around 40%of the original after 4½ months outdoor exposure. Photodegradation was furthermore found not to be the primary source of degradation.
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TNO identifier
847919
Report number
ECN-W--12-010
Publisher
ECN, Petten
Document type
article