A simplified approach to thermally activated delayed fluorescence (TADF) bipolar host polymers

Literature Information

Publication Date 2022-07-06
DOI 10.1039/D2PY00511E
Impact Factor 5.582
Authors

Susanna V. Kunz, Cameron M. Cole, Steven C. Gauci, Felicia Zaar, Paul E. Shaw, Chandana Sampath Kumara Ranasinghe, Thomas Baumann, Prashant Sonar, Soniya D. Yambem, Christopher Barner-Kowollik, James P. Blinco


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Abstract

Organic Light Emitting Diodes (OLEDs) are a critical part of current consumer electronics, from mobile device displays to solid-state lighting. Thus demand for the development of industrially compatible OLED materials continues to increase. Herein, we introduce a series of solution-processible polymers incorporating a Thermally Activated Delayed Fluorescence (TADF) emitter and a host species in the side chain to finely adjust the charge transport properties. For balanced charge transport, a bipolar host polymer based on carbazole and α-carboline was investigated in addition to the commonly employed unipolar host mCP and an electron transporting version thereof. We demonstrate that the combination of unipolar co-hosts on one polymer chain can generate, with less synthetic effort, the same optoelectronic properties as a polymer carrying the corresponding bipolar host molecule as a pendant.

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Polymer Chemistry

Polymer Chemistry
CiteScore: 8.6
Self-citation Rate: 7.3%
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