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Efficient n‐Doping of Polymeric Semiconductors through Controlling the Dynamics of Solution‐State Polymer Aggregates by Miao Xiong; Xinwen Yan; Jia‐Tong Li; Song Zhang; Zhiqiang Cao; Nathaniel Prine; Yang Lu; Jie‐Yu Wang; Xiaodan Gu; Ting Lei is a Chemistry article available to read on EtoBox.

What is Efficient n‐Doping of Polymeric Semiconductors through Controlling the Dynamics of Solution‐State Polymer Aggregates about?

Doping of polymeric semiconductors limits the miscibility between polymers and dopants. Although significant efforts have been devoted to enhancing miscibility through chemical modification, the electrical conductivities of n-doped polymeric semiconductors are usually below 10 S cm . We report a different approach to overcome the miscibility issue by modulating the solution-state aggregates of conjugated polymers. We found that the solution-state aggregates of conjugated polymers not only changed with solvent and temperature but also changed with solution aging time. Modulating the solution-state polymer aggregates can directly influence their solid-state microstructures and miscibility with dopants. As a result, both high doping efficiency and high charge-carrier mobility were simultaneously obtained. The n-doped electrical conductivity of P(PzDPP-CT2) can be tuned up to 32.1 S cm . This method can also be used to improve the doping efficiency of other polymer systems (e.g. N2200) with different aggregation tendencies and behaviors.

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Author

Miao Xiong; Xinwen Yan; Jia‐Tong Li; Song Zhang; Zhiqiang Cao; Nathaniel Prine; Yang Lu; Jie‐Yu Wang; Xiaodan Gu; Ting Lei

Publisher

Wiley

Published

2021

Language

EN

Field

Chemistry (Physical Sciences)