Trade-off between processability and device performance in donor-acceptor semiconductors revealed using discrete siloxane side chains.

Autor: van den Bersselaar BWL; Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513 5600MB Eindhoven The Netherlands., Cattenstart EHW; Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513 5600MB Eindhoven The Netherlands., Elangovan KE; Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign Urbana Illinois 61801 USA., Yen-Chi C; Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign Urbana Illinois 61801 USA., de Waal BFM; Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513 5600MB Eindhoven The Netherlands., van der Tol J; Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513 5600MB Eindhoven The Netherlands., Diao Y; Department of Chemical and Biomolecular Engineering, University of Illinois Urbana-Champaign Urbana Illinois 61801 USA., Meijer EW; Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513 5600MB Eindhoven The Netherlands., Vantomme G; Laboratory of Macromolecular and Organic Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology P.O. Box 513 5600MB Eindhoven The Netherlands.
Jazyk: angličtina
Zdroj: Journal of materials chemistry. C [J Mater Chem C Mater] 2024 Apr 24; Vol. 12 (18), pp. 6637-6644. Date of Electronic Publication: 2024 Apr 24 (Print Publication: 2024).
DOI: 10.1039/d4tc00875h
Abstrakt: Donor-acceptor polymeric semiconductors are crucial for state-of-the-art applications, such as electronic skin mimics. The processability, and thus solubility, of these polymers in benign solvents is critical and can be improved through side chain engineering. Nevertheless, the impact of novel side chains on backbone orientation and emerging device properties often remains to be elucidated. Here, we investigate the influence of elongated linear and branched discrete oligodimethylsiloxane ( o DMS) side chains on solubility and device performance. Thereto, diketopyrrolopyrrole-thienothiophene polymers are equipped with various o DMS pendants (PDPPTT-Si n ) and subsequently phase separated into lamellar domains. The introduction of a branching point in the siloxane significantly enhanced the solubility of the polymer, as a result of increased backbone distortion. Simultaneously, the charge carrier mobility of the polymers decreased by an order of magnitude upon functionalization with long and/or branched siloxanes. This work unveils the intricate balance between processability and device performance in organic semiconductors, which is key for the development of next-generation electronic devices.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
Databáze: MEDLINE
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