Two boron atoms versus one: high-performance deep-blue multi-resonance thermally activated delayed fluorescence emitters

Two new deep-blue narrowband multi-resonant emitters, 1B-DTACrs and 2B-DTACrs, one of which shows thermally activated delayed fluorescence (TADF), based on boron, nitrogen, and oxygen doped nanographenes are reported. Devices based on 2B-DTACrs showed an EQE max of 14.8% and CIE coordinates of (0.15...

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Veröffentlicht in:	Chemical communications (Cambridge, England) England), 2022-08, Vol.58 (67), p.9377-9380
Hauptverfasser:	Chan, Chin-Yiu, Madayanad Suresh, Subeesh, Lee, Yi-Ting, Tsuchiya, Youichi, Matulaitis, Tomas, Hall, David, Slawin, Alexandra M. Z., Warriner, Stuart, Beljonne, David, Olivier, Yoann, Adachi, Chihaya, Zysman-Colman, Eli
Format:	Artikel
Sprache:	eng
Schlagworte:	Boron Emitters Fluorescence Narrowband
Online-Zugang:	Volltext
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Beschreibung
Zusammenfassung:	Two new deep-blue narrowband multi-resonant emitters, 1B-DTACrs and 2B-DTACrs, one of which shows thermally activated delayed fluorescence (TADF), based on boron, nitrogen, and oxygen doped nanographenes are reported. Devices based on 2B-DTACrs showed an EQE max of 14.8% and CIE coordinates of (0.150, 0.044), which are very close to the BT.2020 requirement for blue pixels.
ISSN:	1359-7345 1364-548X
DOI:	10.1039/d2cc03347j