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Controllable processes for generating large single crystals of poly(3-hexylthiophene)

Khosrow Rahimi, Ioan Botiz, Natalie Stingelin, Navaphun Kayunkid, Michael Sommer, Felix Peter, Vinzenz Koch, Ha Nguyen, Olivier Coulembier, Philippe Dubois, Martin Brinkmann and Günter Reiter. Angew. Chem. 124, 11293 –11297 (2012)

Sowing the seeds: A simple strategy based on self-seeding allows large single crystals of long regioregular poly(3-hexylthiophene) chains to be grown from solution. When appropriately crystallized, materials differing in their degrees of regioregularity and molecular weights formed monoclinic form II crystals with interdigitated hexyl side groups.

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