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Characterization of tandem organic solar cells

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Author: Timmreck, R. · Meyer, T. · Gilot, J. · Seifert, H. · Mueller, T. · Furlan, A. · Wienk, M.M. · Wynands, D. · Hohl-Ebinger, J. · Warta, W. · Janssen, R.A.J. · Riede, M. · Leo, K.
Publisher: Nature Publishing Group
Source:Nature Photonics, 8, 9, 478-479
Identifier: 527760
Keywords: Electronics · High Tech Systems & Materials · Industrial Innovation · Nano Technology · HOL - Holst · TS - Technical Sciences


To the Editor — The tandem solar cell approach is a promising concept for organic photovoltaics (OPVs). However, efficiency determination or, in general, electrical characterization of multi-junction solar cells is challenging. We performed a literature survey of publications reporting tandem OPV characterizations over the period January 2009 to September 2014 and came to the alarming conclusion that 96% of the published efficiencies were not measured according to the relevant standards.