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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202204253
|2 doi
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|a pubmed24n1145.xml
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|a (DE-627)NLM343593998
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|a (NLM)35839149
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|a DE-627
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|a eng
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| 100 |
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|a Yan, Zhi-Ping
|e verfasserin
|4 aut
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|a A Chiral Dual-Core Organoboron Structure Realizes Dual-Channel Enhanced Ultrapure Blue Emission and Highly Efficient Circularly Polarized Electroluminescence
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 08.09.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a The realization of luminescent materials with narrowband and circularly polarized luminescence (CPL) is of great significance for the development of future optical and photonic devices. Herein, through a steric-hindrance-assisted dual-core strategy, two pairs of chiral dual-core multiple resonance thermally activated delayed fluorescence (MR-TADF) materials (R/S-DOBN and R/S-DOBNT) are directly constructed by the bonding of two organoboron MR-TADF monocores (SOBN and SOBNT) with carbazole/3,6-di-tert-butyl-9H-carbazole and phenol derivative as donors, realizing obvious CPL and narrowband emissions. Furthermore, the dual-core effect in the prepared R/S-DOBN and R/S-DOBNT increases the transition oscillator strength two times more than that of a monocore structure, while maintaining the ultrapure blue emissions peaking at 453 and 459 nm with a narrower full-width at half-maximum of 21 nm through reorganization energy reduction. The circularly polarized organic light-emitting diodes based on the enantiomers exhibit ultrapure blue emission with Commission Internationale de L'Eclairage (CIE) coordinates of (0.14, 0.10) and (0.13, 0.12), high maximum external quantum efficiencies of 23.9% and 25.6%, and obvious circularly polarized electroluminescence with dissymmetry factors (|gEL |) ≈ 10-3
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|a Journal Article
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|a chiral dual-core organoboron structure
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|a circularly polarized luminescence
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|a circularly polarized organic light-emitting diodes
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|a multiple resonance thermally activated delayed fluorescence
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|a narrowband emission
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|a Yuan, Li
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Yuan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mao, Meng-Xi
|e verfasserin
|4 aut
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| 700 |
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|a Liao, Xiang-Ji
|e verfasserin
|4 aut
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| 700 |
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|a Ni, Hua-Xiu
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Zhi-Heng
|e verfasserin
|4 aut
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| 700 |
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|a An, Zhongfu
|e verfasserin
|4 aut
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| 700 |
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|a Zheng, You-Xuan
|e verfasserin
|4 aut
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| 700 |
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|a Zuo, Jing-Lin
|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 34(2022), 36 vom: 05. Sept., Seite e2204253
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:36
|g day:05
|g month:09
|g pages:e2204253
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|u http://dx.doi.org/10.1002/adma.202204253
|3 Volltext
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