Solvent additive control of morphology and crystallization in semiconducting polymer blends.

Liu, Xueliang; Huettner, Sven; Rong, Zhuxia; Sommer, Michael; Friend, Richard H · Adv Mater · 2012

basic_science · Level V

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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.

Medical subject headings