N-Adamantylphthalimide-based Thermally Activated Delayed Fluorescence Emitter for Solution-processed Organic Light-emitting Diodes

N-Adamantylphthalimide-based Thermally Activated Delayed Fluorescence Emitter for Solution-processed Organic Light-emitting Diodes

A new thermally activated delayed fluorescence emitter (BCz-PI-Ad) with two carbazole donor units and an N-adamantylphthalimide acceptor unit was designed and synthesized for use in fabrication of solution-processed organic light-emitting diodes (OLEDs). BCz-PI-Ad dissolved easily in various organic...

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Veröffentlicht in:Chemistry letters 2021-12, Vol.50 (12), p.1953-1955
Hauptverfasser: Shibano, Masaya, Suzuki, Katsuaki, Kaji, Hironori, Takano, Toshiyuki
Format: Artikel
Sprache:eng
Schlagworte:
Carbazoles
Emitters
Fluorescence
Light emitting diodes
Organic light emitting diodes
Quantum efficiency
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Zusammenfassung:A new thermally activated delayed fluorescence emitter (BCz-PI-Ad) with two carbazole donor units and an N-adamantylphthalimide acceptor unit was designed and synthesized for use in fabrication of solution-processed organic light-emitting diodes (OLEDs). BCz-PI-Ad dissolved easily in various organic solvents and showed solvatochromism. A solution-processed OLED with 10 wt % BCz-PI-Ad:4,4′-bis(9H-carbazol-9-yl)biphenyl as the emitting layer gave a bluish-green emission (λEL: 493 nm). The maximum external quantum efficiency was 13.6%.
ISSN:0366-7022
1348-0715
DOI:10.1246/cl.210446