Sondergaard, R.R.R.R.SondergaardMakris, T.T.MakrisLianos, P.P.LianosManor, A.A.ManorKatz, E.A.E.A.KatzGong, W.W.GongTuladhar, S.M.S.M.TuladharNelson, J.J.NelsonTuomi, R.R.TuomiSommeling, P.P.SommelingVeenstra, Sjoerd C.Sjoerd C.VeenstraRivaton, A.A.RivatonDupuis, A.A.DupuisTeran-Escobar, GerardoGerardoTeran-EscobarLira-Cantu, MonicaMonicaLira-CantuSapkota, Subarna BabuSubarna BabuSapkotaZimmermann, BirgerBirgerZimmermannWürfel, UliUliWürfelMatzarakis, A.A.MatzarakisKrebs, Frederic C.Frederic C.Krebs2022-03-042022-03-042012https://publica.fraunhofer.de/handle/publica/22884910.1016/j.solmat.2011.12.013A 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 4 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 4 months outdoor exposure. Photodegradation was furthermore found not to be the primary source of degradation.en621journal article