| |  Online-Ressource |
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| Verfasst von: | Ahrens, Lukas [VerfasserIn]  |
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| | Schlißke, Stefan [VerfasserIn] |
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| | Strunk, Karl-Philipp [VerfasserIn] |
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| | Hinkel, Felix Peter [VerfasserIn] |
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| | Melzer, Christian [VerfasserIn] |
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| | Bunz, Uwe H. F. [VerfasserIn] |
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| | Lemmer, Uli [VerfasserIn] |
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| | Hernandez-Sosa, Gerardo [VerfasserIn] |
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| | Jänsch, Daniel [VerfasserIn] |
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| | Freudenberg, Jan [VerfasserIn] |
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| | Müllen, Klaus [VerfasserIn] |
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| Titel: | Solubility modulation of polyfluorene emitters by thermally induced (retro)-Diels-Alder cross-linking of cyclopentadienyl substituents |
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| Verf.angabe: | Lukas Ahrens, Stefan Schlisske, Karl-Philipp Strunk, Felix Hinkel, Christian Melzer, Uwe H.F. Bunz, Uli Lemmer, Gerardo Hernandez-Sosa, Daniel Jänsch, Jan Freudenberg, and Klaus Müllen |
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| E-Jahr: | 2018 |
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| Jahr: | June 4, 2018 |
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| Umfang: | 11 S. |
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| Teil: | volume:30 |
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| | year:2018 |
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| | number:12 |
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| | pages:4157-4167 |
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| | extent:11 |
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| Fussnoten: | Gesehen am 28.04.2020 |
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| Titel Quelle: | Enthalten in: Chemistry of materials |
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| Ort Quelle: | Washington, DC : American Chemical Society, 1989 |
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| Jahr Quelle: | 2018 |
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| Band/Heft Quelle: | 30(2018), 12, Seite 4157-4167 |
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| ISSN Quelle: | 1520-5002 |
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| Abstract: | For cost-efficient organic electronic devices, the consecutive deposition of active layers by solution-based processes is a key benefit. We report a synthetic approach enabling solubility reduction of bis(cyclopentadienyl)-substituted polyfluorenes as emissive layers in organic light-emitting diodes (OLEDs). Thermally induced retro-Diels-Alder reaction liberates free cyclopentadiene as “protecting group” and pending cyclopentadienyl units, which cross-link the polymer strands upon cooling via [4+2] cycloadditions. The activation temperature is tuned in the range of 180-250 °C through alkyl, alkoxy, or ester linkages. Ultimately, macrocyclic self-protected bis(cyclopentadienylene) moieties avoid extrusion of volatile cyclopentadiene during activation. The solvent resistance of the emissive layers after cross-linking is examined by absorption spectroscopy and white light scanning interferometry. The influence of the desolubilization procedure on the performance of solution-processed OLEDs is investigated. |
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| DOI: | doi:10.1021/acs.chemmater.8b01703 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext: https://doi.org/10.1021/acs.chemmater.8b01703 |
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| | DOI: https://doi.org/10.1021/acs.chemmater.8b01703 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| K10plus-PPN: | 1696728215 |
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| Verknüpfungen: | → Zeitschrift |
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Solubility modulation of polyfluorene emitters by thermally induced (retro)-Diels-Alder cross-linking of cyclopentadienyl substituents / Ahrens, Lukas [VerfasserIn]; June 4, 2018 (Online-Ressource)
