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Kui Zhao, Hadayat Ullah Khan, Ruipeng Li, Yisong Su and Aram Amassian Entanglement of Conjugated Polymer Chains Influences Molecular Self-Assembly and Carrier Transport Advanced Functional Materials 23

Article first published online: 26 JUN 2013 | DOI: 10.1002/adfm.201301007

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Conjugated polymer chains of poly(3-hexylthiophene) (P3HT) are gradually disentangled in solution and trends in carrier transport mechanisms in organic thin film transistors for low- and high-molecular weight P3HT are investigated. While intrachain and interchain ordering within ordered domains are the key bottlenecks to charge transport in high-Mw P3HT films, the limited interconnectivity of ordered domains acts as the primary bottleneck to carrier transport in low-Mw P3HT films.

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