Photovoltaic properties of a conjugated polymer blend of MDMO-PPV and PCNEPV.

S.C. Veenstra, W.J.H. Verhees, J.M. Kroon, M.M. Koetse, J. Sweelssen, J.J.A.M. Bastiaansen, H.F.M. Schoo, X.N. Yang, A.A. Alexeev, J. Loos, U.S. Schubert, M.M. Wienk

Research output: Contribution to journalArticleAcademicpeer-review

119 Citations (Scopus)

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).
Original languageEnglish
Pages (from-to)2503-2508
JournalChemistry of Materials
Volume16
Issue number12
DOIs
Publication statusPublished - 2004

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