Title
Photovoltaic properties of a conjugated polymer blend of MDMO-PPV and PCNEPV
Author
Veenstra, S.C.
Verhees, W.J.H.
Kroon, J.M.
Koetse, M.M.
Sweelssen, J.
Bastiaansen, J.J.A.M.
Schoo, H.F.M.
Yang, X.
Alexeev, A.
Loos, J.
Schubert, U.S.
Wienk, M.M.
TNO Industrie
Publication year
2004
Abstract
Photovoltaic properties of solution-processed semiconducting polymer blends have been studied. It is demonstrated that photoinduced charge transfer occurs in binary mixtures of poly[2-methoxy-5-(3,7-dimethyloctyloxy)-1,4-phenylenevinylene] (MDMO-PPV) and poly-[oxa-1,4-phenylene-(1-cyano-1,2-vinylene)-(2-methoxy-5-(3, 7-dimethyloctyloxy)-1,4-phenylene)-1,2-(2-cyanovinylene)-1,4-phenylene] (PCNEPV). Further, it is shown that the photovoltaic performance is improved by a thermal treatment which alters the morphology of the photoactive layer. The temperature necessary to achieve the enhanced performance is related to transition temperatures of the pure polymers. Device optimization yields solar cells with a power conversion efficiency of 0.75% under standard test conditions (AM 1.5, 1000 W/m2).
Subject
Electronics
Aromatic compounds
Binary mixtures
Charge transfer
Heat treatment
Conjugate polymers
Power conversions
Polymer blends
Absorption spectroscopy
Atomic force microscopy
Polymerization
Semiconductors
Transmission electron microscopy
MDMO-PPV
PCNEPV
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http://resolver.tudelft.nl/uuid:07e39942-8f85-491f-bb99-ffa5c68b6f5f
TNO identifier
237842
ISSN
0897-4756
Source
Chemistry of Materials, 16 (12), 2503-2508
Document type
article