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Eco‐Friendly Fabrication of 4% Efficient Organic Solar Cells from Surfactant‐Free P3HT:ICBA Nanoparticle Dispersions
Author(s) -
Gärtner Stefan,
Christmann Marco,
Sankaran Sivaramakrishnan,
Röhm Holger,
Prinz EvaMarie,
Penth Felix,
Pütz Andreas,
Türeli Akif Emre,
Penth Bernd,
Baumstümmler Bernd,
Colsmann Alexander
Publication year - 2014
Publication title -
advanced materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.707
H-Index - 527
eISSN - 1521-4095
pISSN - 0935-9648
DOI - 10.1002/adma.201402360
Subject(s) - materials science , organic solar cell , fabrication , nanoparticle , nanotechnology , annealing (glass) , pulmonary surfactant , chemical engineering , polymer , composite material , medicine , alternative medicine , pathology , engineering
Photo‐active layers from non‐stabilized P3HT:ICBA nanoparticles enable the fabrication of inverted organic solar cells from eco‐friendly, alcoholic dispersions. Exhibiting power conversion efficiencies (PCEs) ≈4%, the devices are competitive to state‐of‐the‐art P3HT:ICBA solar cells from chlorinated solvents. Upon thermal annealing, the short circuit current density and consequently the PCE of the inverted solar cells improve radically due to a more intimate contact of the nanoparticles and hence an enhanced charge carrier extraction.