Improved bulk heterojunction organic solar cells employing C70 fullerenes

We show that the fullerene C70 is suitable to replace fullerene C60, which is commonly used as electron transporter and acceptor in small-molecule organic solar cells. It is shown that the higher absorption of C70 leads to high external quantum efficiencies of over 50% in the spectral range of 500–7...

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Veröffentlicht in:	Applied physics letters 2009-06, Vol.94 (22)
Hauptverfasser:	Pfuetzner, Steffen, Meiss, Jan, Petrich, Annette, Riede, Moritz, Leo, Karl
Format:	Artikel
Sprache:	eng
Online-Zugang:	Volltext
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