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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202100652
|2 doi
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|a pubmed24n1080.xml
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|a DE-627
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|a eng
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|a Xu, Yincai
|e verfasserin
|4 aut
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|a Highly Efficient Electroluminescence from Narrowband Green Circularly Polarized Multiple Resonance Thermally Activated Delayed Fluorescence Enantiomers
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|c 2021
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 27.05.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a Purely organic fluorescent materials that concurrently exhibit high efficiency, narrowband emission, and circularly polarized luminescence (CPL) remain an unaddressed issue despite their promising applications in wide color gamut- and 3D-display. Herein, the CPL optical property and multiple resonance (MR) effect induced thermally activated delayed fluorescence (MR-TADF) emission are integrated with high color purity and luminous efficiency together. Two pairs of highly efficient green CP-MR-TADF enantiomers, namely, (R/S)-OBN-2CN-BN and (R/S)-OBN-4CN-BN, are developed. The enantiomer-based organic light-emitting diodes (OLEDs) exhibit pure green emission with narrow full-width at half-maximums (FWHMs) of 30 and 33 nm, high maximum external quantum efficiencies (EQEs) of 29.4% and 24.5%, and clear circularly polarized electroluminescence (CPEL) signals with electroluminescence dissymmetry factors (gEL ) of +1.43 × 10-3 /-1.27 × 10-3 and +4.60 × 10-4 /-4.76 × 10-4 , respectively. This is the first example of a highly efficient OLED that exhibits CPEL signal, narrowband emission, and TADF concurrently
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|a Journal Article
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|a circularly polarized luminescence
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|a multiple resonance
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|a narrowband emission
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|a organic light-emitting diodes
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|a thermally activated delayed fluorescence
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|a Wang, Qingyang
|e verfasserin
|4 aut
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|a Cai, Xinliang
|e verfasserin
|4 aut
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|a Li, Chenglong
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Yue
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 21 vom: 01. Mai, Seite e2100652
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:33
|g year:2021
|g number:21
|g day:01
|g month:05
|g pages:e2100652
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|u http://dx.doi.org/10.1002/adma.202100652
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