NDLI: Towards 15% energy conversion efficiency: a systematic study of the solution-processed organic tandem solar cells based on commercially available materials

Content Provider	Royal Society of Chemistry (RSC)
Author	Li, Ning Ameri, Tayebeh Machui, Florian Forberich, Karen Baran, Derya Carrasco-Orozco, Miguel Turbiez, Mathieu Brabec, Christoph J. Drees, Martin Facchetti, Antonio Krebs, Frederik C.
Copyright Year	2013
Abstract	Owing to the lack of scalable high performance donor materials, studies on mass-produced organic photovoltaic (OPV) devices lag far behind that on lab-scale devices. In this work, we choose 6 already commercially available conjugated polymers and systematically investigate their potential in organic tandem solar cells. All the devices are processed under environmental conditions using doctor-blading, which is highly compatible with mass-production coating technologies. Power conversion efficiencies (PCE) of 6–7% are obtained for OPV devices based on different active layers. Optical simulations based on experimental data are performed for all realized tandem solar cells. An efficiency potential of ∼10% is estimated for these compounds in combination with phenyl-C61-butyric acid methyl ester (PCBM) as an acceptor. In addition, we assume a hypothetical, optimized acceptor to understand the limitation of donors. It is suggested that a PCE of >14% is realistic for tandem solar cells based on these commercially available donor materials. Along with the demonstration of novel intermediate layers we believe that this systematic study provides valuable insight for those attempting to realize the high efficiency potential of tandem architectures.
Starting Page	3407
Ending Page	3413
Page Count	7
File Format	HTM / HTML PDF
ISSN	17545692
Volume Number	6
Issue Number	12
Journal	Energy & Environmental Science
DOI	10.1039/c3ee42307g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	OPV Electron donor Solar cell Phenyl-C61-butyric acid methyl ester Acid Ester
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Pollution Renewable Energy, Sustainability and the Environment Nuclear Energy and Engineering

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