π-Conjugated Microporous Polymer Films: Designed Synthesis, Conducting Properties, and Photoenergy Conversions

• Published in: Angewandte Chemie Vol. 127; no. 46; pp. 13798 - 13802
• Main Authors: Gu, Cheng, Huang, Ning, Chen, Youchun, Qin, Leiqiang, Xu, Hong, Zhang, Shitong, Li, Fenghong, Ma, Yuguang, Jiang, Donglin
• Format: Journal Article
• Language: English; German
• Published: Weinheim WILEY-VCH Verlag 09.11.2015; WILEY‐VCH Verlag
• Subjects: Conducting polymers; Devices; Dünne Filme; Electrodes; Halbleiter; Konjugierte mikroporöse Polymere; Lochbeweglichkeit; Polymerization; Porosity; Solarzellen; Strategy; Synthesis; Thin films
• ISSN: 0044-8249; 1521-3757
• DOI: 10.1002/ange.201506570

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. Film ab: Eine Strategie zur Synthese von dünnen Filmen aus π‐konjugierten mikroporösen Polymeren wird vorgestellt (siehe Bild). In einer thiophenbasierten elektrochemischen Hochdurchsatzpolymerisierung konnte die Dicke der Filme eingestellt werden. Die π‐konjugierten mikroporösen Polymere erwiesen sich als herausragende Leiter mit einer hohen Ladungsträgermobilität und als photoaktive Schichten für die effiziente Umwandlung von Lichtenergie.