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High‐efficiency bulk heterojunction (BHJ) organic solar cells with power conversion efficiencies of more than 5 % can be fabricated using the green solvent 2‐MeTHF. The active layers comprise a blend of a molecular semiconductor donor with intermediate dimensions (X2) and the soluble fullerene derivative [6,6]‐phenyl‐C61‐butyricacidoctylester (PC61BC8). A switch of the processing solvent from chloroform...
Hochleistungssolarzellen wurden durch Abscheiden molekularer Halbleiter aus dem “grünen” Lösungsmittel 2‐Methyltetrahydrofuran (2‐MeTHF) hergestellt, wie G. C. Bazan et al. in ihrer Zuschrift auf S. 14606 ff. beschreiben. Die lichtsammelnde halbleitende Schicht besteht dabei aus einem molekularen Donor mittlerer Größe und einem löslichen Fullerenderivat. Die Ergebnisse weisen den Weg zu einer nachhaltigen...
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