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Efficient Semi‐Transparent Organic Solar Cells with Good Transparency Color Perception and Rendering Properties
Author(s) -
Colsmann Alexander,
Puetz Andreas,
Bauer Andreas,
Hanisch Jonas,
Ahlswede Erik,
Lemmer Uli
Publication year - 2011
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201000089
Subject(s) - materials science , color rendering index , organic solar cell , transparency (behavior) , optoelectronics , rendering (computer graphics) , energy conversion efficiency , polymer , light emitting diode , composite material , computer science , computer graphics (images) , computer security
Window integrated photovoltaics for automotive and building applications are a promising market segment for organic solar modules. Besides semi‐transparency, window integrated applications require a reasonable transparency perception and good color rendering properties in order to be suitable for realistic scene illumination. Here, the transmitted light through semi‐transparent organic solar cells comprising the polymer/fullerene blend poly[(4,4'‐bis(2‐ethylhexyl)dithieno[3,2‐b:2',3'‐d]silole)‐2,6‐diyl‐alt‐(2,1,3‐benzothiadiazole)‐4,7‐diyl]: [6,6]‐phenyl C 71 ‐butric acid methyl ester (PSBTBT:PC 70 BM) as active layer and a sputtered aluminum doped zinc oxide cathode were found to exhibit a color neutral perception for the human eye and very good color rendering properties. Moreover, the electrical cell properties allow for efficient energy harvesting with an overall power conversion efficiency η ≈ 3%.