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Title: Inkjet printing processing conditions for bulk-heterojunction solar cells using two high-performing conjugated polymer donors
Authors: Hermerschmidt, Felix 
Papagiorgis, Paris 
Savva, Achilleas 
Christodoulou, Constantinos 
Itskos, Grigorios 
Choulis, Stelios A. 
Keywords: Conjugated polymers;Inkjet printing and processing;Morphology;Organic photovoltaics;Printed electronics
Category: Electrical Engineering - Electronic Engineering - Information Engineering
Field: Engineering and Technology
Issue Date: 1-Jan-2014
Publisher: Elsevier
Source: Solar Energy Materials and Solar Cells Volume 130, November 2014, Pages 474-480
Abstract: We report the processing conditions for inkjet-printed active layers of organic photovoltaic (OPV) devices comprising bulk-heterojunction blends of the low bandgap conjugated polymer poly[(4,4′-bis(2-ethylhexyl)dithieno[3,2-b: 2′,3′-d]silole)-2,6-diyl-alt-(4,7-bis(2-thienyl)-2,1, 3-benzothiadiazole)-5,5′-diyl] (Si-PCPDTBT) as well as poly[N-9′-hepta-decanyl-2,7-carbazole-alt-5,5-(4′, 7′-di-2-thienyl-2′,1′,3′-benzothiadiazole)] (PCDTBT) used as electron donors with [6,6]-phenyl-C71-butyric acid methyl ester (PC 70BM) as electron acceptor. By controlling the inkjet printing processing conditions, we gain a significant improvement in device power conversion efficiency (PCE) to previously reported work using these materials. We obtain Si-PCPDTBT:fullerene and PCDTBT:fullerene-based inkjet-printed OPVs with power conversion efficiency of ~3% and ~4%, respectively.
ISSN: 09270248
Rights: © 2014 Elsevier B.V.
Type: Article
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