James H. Bannock, Siva H. Krishnadasan, Adrian M. Nightingale, Chin Pang Yau, Kevin Khaw, Daniel Burkitt, Jonathan J. M. Halls, Martin Heeney and John C. de Mello Continuous Synthesis of Device-Grade Semiconducting Polymers in Droplet-Based Microreactors Advanced Functional Materials 23
The controlled synthesis of semiconducting polymers in droplet-based microreactors is described. Using poly(3-hexylthiophene) (P3HT) as a test polymer, a product of controllable molecular weight and high regioregularity (>98%) is obtained at rates of up to 60 g/day. The droplet-synthesized P3HT yields power conversion efficiencies of 4% when combined with [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) in bulk heterojunction solar cells.
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