将 2,6-连接薁单元纳入共轭聚合物骨架中：实现高性能有机光电材料。
Incorporation of 2,6-Connected Azulene Units into the Backbone of Conjugated Polymers: Towards High-Performance Organic Optoelectronic Materials.
机构信息
Key Laboratory of Synthetic and Self-Assembly Chemistry for Organic Functional Molecules, Center for Excellence in Molecular Synthesis, Shanghai Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032, China.
Department of Materials Science and Engineering, Monash University, Victoria, 3800, Australia.
出版信息
Angew Chem Int Ed Engl. 2018 Jan 26;57(5):1322-1326. doi: 10.1002/anie.201711802. Epub 2017 Dec 28.
Azulene is a promising candidate for constructing optoelectronic materials. An effective strategy is presented to obtain high-performance conjugated polymers by incorporating 2,6-connected azulene units into the polymeric backbone, and two conjugated copolymers P(TBAzDI-TPD) and P(TBAzDI-TFB) were designed and synthesized based on this strategy. They are the first two examples for 2,6-connected azulene-based conjugated polymers and exhibit unipolar n-type transistor performance with an electron mobility of up to 0.42 cm V s , which is among the highest values for n-type polymeric semiconductors in bottom-gate top-contact organic field-effect transistors. Preliminary all-polymer solar cell devices with P(TBAzDI-TPD) as the electron acceptor and PTB7-Th as the electron donor display a power conversion efficiency of 1.82 %.
薁是构建光电材料的有前途的候选物。本工作提出了一种有效的策略，通过将 2,6-连接的薁单元引入聚合物主链，从而得到具有高性能的共轭聚合物。基于该策略，设计并合成了两种共轭共聚物 P(TBAzDI-TPD)和 P(TBAzDI-TFB)。它们是首例基于 2,6-连接的薁的共轭聚合物，表现出单极性 n 型晶体管性能，电子迁移率高达 0.42 cm V s ，在底栅顶接触有机场效应晶体管中的 n 型高分子半导体中属于最高值之列。以 P(TBAzDI-TPD)为电子受体和 PTB7-Th 为电子给体的初步全聚合物太阳能电池器件的功率转换效率为 1.82%。
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