Deep-Blue and Fast Delayed Fluorescence from Carbene-Metal-Amides for Highly Efficient and Stable Organic Light-Emitting Diodes

© 2024 The Authors. Advanced Materials published by Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 30 vom: 21. Juli, Seite e2404357
1. Verfasser: Brannan, Alexander C (VerfasserIn)
Weitere Verfasser: Cho, Hwan-Hee, Reponen, Antti-Pekka M, Gorgon, Sebastian, Phuoc, Nguyen Le, Linnolahti, Mikko, Greenham, Neil C, Romanov, Alexander S
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article OLED TADF carbene complex gold photoluminescence
LEADER 01000caa a22002652 4500
001 NLM372162630
003 DE-627
005 20240726232336.0
007 cr uuu---uuuuu
008 240510s2024 xx |||||o 00| ||eng c
024 7 |a 10.1002/adma.202404357  |2 doi 
028 5 2 |a pubmed24n1482.xml 
035 |a (DE-627)NLM372162630 
035 |a (NLM)38727713 
040 |a DE-627  |b ger  |c DE-627  |e rakwb 
041 |a eng 
100 1 |a Brannan, Alexander C  |e verfasserin  |4 aut 
245 1 0 |a Deep-Blue and Fast Delayed Fluorescence from Carbene-Metal-Amides for Highly Efficient and Stable Organic Light-Emitting Diodes 
264 1 |c 2024 
336 |a Text  |b txt  |2 rdacontent 
337 |a ƒaComputermedien  |b c  |2 rdamedia 
338 |a ƒa Online-Ressource  |b cr  |2 rdacarrier 
500 |a Date Revised 25.07.2024 
500 |a published: Print-Electronic 
500 |a Citation Status PubMed-not-MEDLINE 
520 |a © 2024 The Authors. Advanced Materials published by Wiley‐VCH GmbH. 
520 |a Linear gold complexes of the "carbene-metal-amide" (CMA) type are prepared with a rigid benzoguanidine amide donor and various carbene ligands. These complexes emit in the deep-blue range at 424 and 466 nm with 100% quantum yields in all media. The deep-blue thermally activates delayed fluorescence originates from a charge transfer state with an excited state lifetime as low as 213 ns, resulting in fast radiative rates of 4.7 × 106 s-1. The high thermal and photo-stability of these carbene-metal-amide (CMA) materials enabled the authors to fabricate highly energy-efficient organic light-emitting diodes (OLED) in host-guest architectures. Deep-blue OLED devices with electroluminescence at 416 and 457 nm with practical external quantum efficiencies of up to 23% at 100 cd m-2 with excellent color coordinates CIE (x; y) = 0.16; 0.07 and 0.17; 0.18 are reported. The operating stability of these OLEDs is the longest reported to date (LT50 = 1 h) for deep-blue CMA emitters, indicating a high promise for further development of blue OLED devices. These findings inform the molecular design strategy and correlation between delayed luminescence with high radiative rates and CMA OLED device operating stability 
650 4 |a Journal Article 
650 4 |a OLED 
650 4 |a TADF 
650 4 |a carbene complex 
650 4 |a gold 
650 4 |a photoluminescence 
700 1 |a Cho, Hwan-Hee  |e verfasserin  |4 aut 
700 1 |a Reponen, Antti-Pekka M  |e verfasserin  |4 aut 
700 1 |a Gorgon, Sebastian  |e verfasserin  |4 aut 
700 1 |a Phuoc, Nguyen Le  |e verfasserin  |4 aut 
700 1 |a Linnolahti, Mikko  |e verfasserin  |4 aut 
700 1 |a Greenham, Neil C  |e verfasserin  |4 aut 
700 1 |a Romanov, Alexander S  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 36(2024), 30 vom: 21. Juli, Seite e2404357  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:36  |g year:2024  |g number:30  |g day:21  |g month:07  |g pages:e2404357 
856 4 0 |u http://dx.doi.org/10.1002/adma.202404357  |3 Volltext 
912 |a GBV_USEFLAG_A 
912 |a SYSFLAG_A 
912 |a GBV_NLM 
912 |a GBV_ILN_350 
951 |a AR 
952 |d 36  |j 2024  |e 30  |b 21  |c 07  |h e2404357