Solvent additive control of morphology and crystallization in semiconducting polymer blends |
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| Authors: | Liu Xueliang Huettner Sven Rong Zhuxia Sommer Michael Friend Richard H |
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| Affiliation: | Cavendish Laboratory, Department of Physics, University of Cambridge, CB3 0HE, UK. |
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| Abstract: | 4-bromoanisole is used as a very versatile processing additive to control the phase separation and phase purity of organic photovoltaic devices. Polymer-polymer blends based on P3HT as donor and a wide range of acceptor materials (F8TBT, PCDTBT,…?) are investigated. The additive promotes the aggregation of P3HT which improves the morphology for both initially mixed and demixed blends. |
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