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240726s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202406550
|2 doi
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|a pubmed24n1482.xml
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|a (DE-627)NLM375422404
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|a (NLM)39054732
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|a DE-627
|b ger
|c DE-627
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|a eng
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|a Guo, Chen-Hao
|e verfasserin
|4 aut
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|a Chiral Co-Assembly with Narrowband Multi-Resonance Characteristics for High-Performance Circularly Polarized Organic Light-Emitting Diodes
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|c 2024
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|a Text
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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 26.07.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a A promising kind of ternary chiral co-assemblies with high PLQY, large dissymmetry factor (glum), and narrowband multi-resonance characteristics are achieved by codoped-thermal annealing treatments of achiral luminescent polymer F8BT, chiral inducers R/S-5011, and achiral FRET acceptor DBN-ICZ. The optimized co-assemblies (F8BT)0.9-(R/S-5011)0.1-(DBN-ICZ)0.005 display narrowband yellow emission with full-width half maximum (FWHM) of 37 nm, PLQY of 79%, and intense CPL signals with |glum| of up to 0.26. Meaningfully, solution-processed CP-OLEDs by using those ternary chiral co-assemblies as emitting layer are successfully fabricated, which display yellow circularly polarized electroluminescence (CPEL) with EQEmax of 4.6% and gEL of up to 0.16. The corresponding Q-factor could reach up to 7.36 × 10-3, which is the highest of all the reported CP-OLEDs. Moreover, the devices also exhibit excellent comprehensive device performance with low Von of 7.0 V, high Lmax of about 25 000 cd m-2, extremely low efficiency roll-off with EQE of 4.3% at 10 000 cd m-2, as well as narrowband EL with FWHM of only 39 nm. The proposed ternary co-assembly strategy in fabricating CP-OLED provides the possibility to achieve high comprehensive device performance such as balancing high EQE and large gEL value, as well as narrowband emission, high brightness and low efficiency roll-off simultaneously
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|a Journal Article
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|a Förster resonance energy transfer
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|a chiral co‐assembly
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|a circularly polarized electroluminescence
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|a multiple resonance
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|a organic light‐emitting diodes
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|a Zhang, Yuewei
|e verfasserin
|4 aut
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|a Zhao, Wen-Long
|e verfasserin
|4 aut
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|a Tan, Ke-Ke
|e verfasserin
|4 aut
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|a Feng, Liheng
|e verfasserin
|4 aut
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|a Duan, Lian
|e verfasserin
|4 aut
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|a Chen, Chuan-Feng
|e verfasserin
|4 aut
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| 700 |
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|a Li, Meng
|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 (2024) vom: 25. Juli, Seite e2406550
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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|g year:2024
|g day:25
|g month:07
|g pages:e2406550
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|u http://dx.doi.org/10.1002/adma.202406550
|3 Volltext
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