|
|
|
|
LEADER |
01000caa a22002652c 4500 |
001 |
NLM367049678 |
003 |
DE-627 |
005 |
20250305162326.0 |
007 |
cr uuu---uuuuu |
008 |
240114s2024 xx |||||o 00| ||eng c |
024 |
7 |
|
|a 10.1002/adma.202311892
|2 doi
|
028 |
5 |
2 |
|a pubmed25n1223.xml
|
035 |
|
|
|a (DE-627)NLM367049678
|
035 |
|
|
|a (NLM)38214416
|
040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
041 |
|
|
|a eng
|
100 |
1 |
|
|a Sachnik, Oskar
|e verfasserin
|4 aut
|
245 |
1 |
0 |
|a Single-Layer Organic Light-Emitting Diode with Trap-Free Host Beats Power Efficiency and Lifetime of Multilayer Devices
|
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 18.04.2024
|
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 Organic light-emitting diodes (OLEDs) employing a single active layer potentially offer a number of benefits compared to multilayer devices; reduced number of materials and deposition steps, potential for solution processing, and reduced operating voltage due to the absence of heterojunctions. However, for single-layer OLEDs to achieve efficiencies approaching those of multilayer devices, balanced charge transport is a prerequisite. This requirement excludes many efficient emitters based on thermally activated delayed fluorescence (TADF) that exhibit electron trapping, such as the green-emitting bis(4-(9,9-dimethylacridin-10(9H)-yl)phenyl)methanone (DMAC-BP). By employing a recently developed trap-free large band gap material as a host for DMAC-BP, nearly balanced charge transport is achieved. The single-layer OLED reaches an external quantum efficiency (EQE) of 19.6%, which is comparable to the reported EQEs of 18.9-21% for multilayer devices, but achieves a record power efficiency for DMAC-BP OLEDs of 82 lm W-1, clearly surpassing the reported multilayer power efficiencies of 52.9-59 lm W-1. In addition, the operational stability is greatly improved compared to multilayer devices and the use of conventional host materials in combination with DMAC-BP as an emitter. Next to the obvious reduction in production costs, single-layer OLEDs therefore also offer the advantage of reduced energy consumption and enhanced stability
|
650 |
|
4 |
|a Journal Article
|
650 |
|
4 |
|a charge transport
|
650 |
|
4 |
|a device physics
|
650 |
|
4 |
|a organic light‐emitting diodes
|
650 |
|
4 |
|a thermally activated delayed fluorescence
|
700 |
1 |
|
|a Ie, Yutaka
|e verfasserin
|4 aut
|
700 |
1 |
|
|a Ando, Naoki
|e verfasserin
|4 aut
|
700 |
1 |
|
|a Tan, Xiao
|e verfasserin
|4 aut
|
700 |
1 |
|
|a Blom, Paul W M
|e verfasserin
|4 aut
|
700 |
1 |
|
|a Wetzelaer, Gert-Jan A H
|e verfasserin
|4 aut
|
773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 36(2024), 16 vom: 01. Apr., Seite e2311892
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
|
773 |
1 |
8 |
|g volume:36
|g year:2024
|g number:16
|g day:01
|g month:04
|g pages:e2311892
|
856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.202311892
|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 16
|b 01
|c 04
|h e2311892
|