Immobilization Strategies for Organic Semiconducting Conjugated Polymers

Chemical Reviews
Jan FreudenbergUwe H F Bunz

Abstract

This Review details synthetic routes toward and properties of insoluble polymeric organic semiconductors obtained through desolubilization strategies. Typical applications include fixation of donor-acceptor bulk-heterojunction morphologies in organic photovoltaic cells, cross-linking of charge transport materials and active emitters in light emitting diodes or similar devices, and immobilization of morphologies in field effect transistors. A second important application is the structuring of organic semiconductors, using them as photoresists. After desolubilization, removal of the nonirradiated resist leads to elevated, micron-sized features of the semiconductor. In this Review, different strategies for desolubilization are covered. By photochemical or thermal cleavage of solubility-mediating groups such as esters, sulfonium salts, amides, ethers, and acetals or by retro-Diels-Alder reactions, volatile elimination products and the insoluble semiconductor are formed. In another case, desolubilization is achieved by cross-linking via functional groups present in the polymer side chains including vinyl, halide, silicone, boronic acid, and azide functionalities, which polymerize thermally or photochemically. Alternatively, small mo...Continue Reading

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Citations

Jan 10, 2019·Chemistry : a European Journal·Manuela CasuttKlaus Müllen
Jan 23, 2020·Advanced Materials·Guillaume SchweicherYves H Geerts
May 14, 2020·Biomolecules·Massimiliano MagroFabio Vianello
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Jun 17, 2020·Journal of the American Chemical Society·Sakiho HayakawaHiroshi Shinokubo
Sep 10, 2021·ACS Applied Materials & Interfaces·Chen-Yu ShiDa-Hui Qu
Jan 28, 2022·The Journal of Physical Chemistry Letters·Nan LuoZitong Liu

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