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π‐Conjugated Microporous Polymer Films: Designed Synthesis,Conducting Properties,and Photoenergy Conversions
Authors:Dr. Cheng Gu  Ning Huang  Youchun Chen  Leiqiang Qin  Dr. Hong Xu  Shitong Zhang  Prof. Fenghong Li  Prof. Yuguang Ma  Prof. Dr. Donglin Jiang
Affiliation:1. Department of Materials Molecular Science, Institute for Molecular Science, National Institutes of Natural Sciences, 5‐1 Higashiyama, Myodaiji, Okazaki 444‐8787 (Japan);2. State Key Laboratory of Supramolecular Structure and Materials, Jilin University, Changchun 130012 (P. R. China);3. State Key Laboratory of Luminescent Materials and Devices, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640 (P. R. China)
Abstract:Conjugated microporous polymers are a unique class of polymers that combine extended π‐conjugation with inherent porosity. However, these polymers are synthesized through solution‐phase reactions to yield insoluble and unprocessable solids, which preclude not only the evaluation of their conducting properties but also the fabrication of thin films for device implementation. Here, we report a strategy for the synthesis of thin films of π‐conjugated microporous polymers by designing thiophene‐based electropolymerization at the solution–electrode interface. High‐quality films are prepared on a large area of various electrodes, the film thickness is controllable, and the films are used for device fabrication. These films are outstanding hole conductors and, upon incorporation of fullerenes into the pores, function as highly efficient photoactive layers for energy conversions. Our film strategy may boost the applications in photocatalysis, energy storage, and optoelectronics.
Keywords:conjugated microporous polymers  hole mobility  semiconductors  solar cells  thin films
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