Multiple Fusion Strategy for High-Performance Yellow OLEDs with Full Width at Half Maximums Down to 23 nm and External Quantum Efficiencies up to 37.4

Multiple Fusion Strategy for High-Performance Yellow OLEDs with Full Width at Half Maximums Down to 23 nm and External Quantum Efficiencies up to 37.4

© 2022 Wiley-VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 35(2023), 7 vom: 27. Feb., Seite e2209396
1. Verfasser: Zhang, Yuewei (VerfasserIn)
Weitere Verfasser: Wei, Jinbei, Wang, Lu, Huang, Tianyu, Meng, Guoyun, Wang, Xiang, Zeng, Xuan, Du, Mingxu, Fan, Tianjiao, Yin, Chen, Zhang, Dongdong, Duan, Lian
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2023
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article high efficiency multiple fusion strategy multiple resonance narrowband yellow emission organic light-emitting diodes
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520 |a The pursuit of ideal narrowband yellow multiple resonance (MR) emitters is hampered by the mutual constraints of effective spectral redshift and maintaining a small full width at half maximum (FWHM) value. Here, a novel multiple fusion molecular design strategy is reported to break this trade-off. Compared with the selected narrowband parent core, the specific multiple MR effects in target molecules can simultaneously extend the π-conjugation length, increase the rigidity of the structure, and reduce the vibrational frequency. Proof-of-the-concept emitters BN-DICz and DBN-ICz show bright yellowish green to yellow emissions in dilute toluene solutions with peaks at 533-542 nm and extremely small FWHMs of ≤20 nm. Notably, BN-DICz-based electroluminescent device exhibits excellent efficiencies of 37.4%, 136.6 cd A-1 , and 119.2 lm W-1 with an FWHM of merely 23 nm, representing the best performance for yellow MR organic light-emitting diodes 
650 4 |a Journal Article 
650 4 |a high efficiency 
650 4 |a multiple fusion strategy 
650 4 |a multiple resonance 
650 4 |a narrowband yellow emission 
650 4 |a organic light-emitting diodes 
700 1 |a Wei, Jinbei  |e verfasserin  |4 aut 
700 1 |a Wang, Lu  |e verfasserin  |4 aut 
700 1 |a Huang, Tianyu  |e verfasserin  |4 aut 
700 1 |a Meng, Guoyun  |e verfasserin  |4 aut 
700 1 |a Wang, Xiang  |e verfasserin  |4 aut 
700 1 |a Zeng, Xuan  |e verfasserin  |4 aut 
700 1 |a Du, Mingxu  |e verfasserin  |4 aut 
700 1 |a Fan, Tianjiao  |e verfasserin  |4 aut 
700 1 |a Yin, Chen  |e verfasserin  |4 aut 
700 1 |a Zhang, Dongdong  |e verfasserin  |4 aut 
700 1 |a Duan, Lian  |e verfasserin  |4 aut 
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773 1 8 |g volume:35  |g year:2023  |g number:7  |g day:27  |g month:02  |g pages:e2209396 
856 4 0 |u http://dx.doi.org/10.1002/adma.202209396  |3 Volltext 
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