Circularly Polarized White Organic Light-Emitting Diodes Based on Spiro-Type Thermally Activated Delayed Fluorescence Materials.
Circularly Polarized Luminescence
Spiro Compounds
Thermally Activated Delayed Fluorescence
White CP-OLEDs
Journal
Angewandte Chemie (International ed. in English)
ISSN: 1521-3773
Titre abrégé: Angew Chem Int Ed Engl
Pays: Germany
ID NLM: 0370543
Informations de publication
Date de publication:
07 Jun 2022
07 Jun 2022
Historique:
received:
07
01
2022
pubmed:
11
3
2022
medline:
11
3
2022
entrez:
10
3
2022
Statut:
ppublish
Résumé
In this study, we report the first circularly polarized white organic light-emitting diodes (CP-WOLEDs) based on all thermally activated delayed fluorescence (TADF) materials. Two pairs of spiro-type TADF enantiomers, (R/S)-SPOCN (5,5'-((2,2',3,3'-tetrahydro-1,1'-spirobi[indene]-7,7'-diyl)bis(oxy))bis(4-(10H-phenoxazin-10-yl)phthalonitrile)) and (R/S)-OSFSO (2'-(trifluoromethyl)-spiro[quinolino[3,2,1-kl]phenoxazine-9,9'-thioxanthene]-10',10'-dioxide), serve as emitters with complementary emission. The CP-OLEDs exhibit warm white emission with a CIE coordinate of (0.35, 0.46). Besides, decent device performances are observed with an external quantum efficiency of up to 21.6 % at maximum and 11.8 % at 1000 cd m
Identifiants
pubmed: 35266274
doi: 10.1002/anie.202200290
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
e202200290Subventions
Organisme : National Natural Science Foundation of China
ID : 51773088, 21975119
Informations de copyright
© 2022 Wiley-VCH GmbH.
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