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Parallel bulk-heterojunction solar cell by electrostatically driven phase separation |
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| Authors: | Ojala Antti Bürckstümmer Hannah Stolte Matthias Sens Rüdiger Reichelt Helmut Erk Peter Hwang Jaehyung Hertel Dirk Meerholz Klaus Würthner Frank |
| Affiliation: | 1. Institut für Organische Chemie and R?ntgen Research Center for Complex Material Systems, Universit?t Würzburg, Am Hubland, 97074 Würzburg, Germany;2. BASF SE, Carl‐Bosch‐Strasse 38, 67056 Ludwigshafen, Germany;3. Department für Chemie, Universit?t zu K?ln, Luxemburger Str. 116, 50939 K?ln, Germany |
| Abstract: | Thermal co-evaporation of C(60) fullerene and two merocyanine dyes affords bulk heterojunction solar cells with improved short-circuit currents and power conversion efficiencies in comparison with the respective single donor cells. These results are rationalized by the formation of three distinct subphases driven by differences in molecular shape and electrostatic interactions. |
| Keywords: | solar cells merocyanine blend donors multijunctions phase separation |
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