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Synfacts 2010(1): 0039-0039  
DOI: 10.1055/s-0029-1218414
Synthesis of Materials and Unnatural Products
© Georg Thieme Verlag Stuttgart ˙ New York

Very High Short-Circuit Currents in Squaraine Solar Cells

Contributor(s): Timothy M. Swager, Jan M. Schnorr
U. Mayerhöffer, K. Deing, K. Gruß, H. Braunschweig, K. Meerholz*, F. Würthner*
Universität Würzburg, Röntgen Research Center for Complex Material Systems, Würzburg and Universität zu Köln, Germany
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Publication History

Publication Date:
21 December 2009 (online)

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Significance

Small p-type organic semiconductor molecules are an interesting alternative to polymer-based electron donors in bulk heterojunction (BHJ) organic photovoltaic cells due to their easier purification and monodispersity. The authors synthesized a series of squaraine dyes (5a-e) and investigated their behavior in BHJ solar cells with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) as the electron acceptor.