Mathis-Andreas Muth, Miguel Carrasco-Orozco and Mukundan Thelakkat Liquid-Crystalline Perylene Diester Polymers with Tunable Charge-Carrier Mobility Advanced Functional Materials 21
Altering the π-system of perylene imide in side-chain homopolymers permits the tuning of electronic character (p-type to n-type semiconductor) and improved optical absorption. The highly soluble polymers PPDB and PPDI exhibit liquid-crystalline mesophases over a broad temperature range. These properties make the two novel compounds interesting for optoelectronic applications and can potentially help with optimization of morphology and device performance of organic photovoltaic cells.
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