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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202300574
|2 doi
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|a pubmed24n1180.xml
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|a (NLM)36914566
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Sachnik, Oskar
|e verfasserin
|4 aut
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| 245 |
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|a Single-Layer Blue Organic Light-Emitting Diodes With Near-Unity Internal Quantum Efficiency
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|c 2023
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Completed 28.06.2023
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|a Date Revised 28.06.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 The Authors. Advanced Materials published by Wiley-VCH GmbH.
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|a Efficient organic light-emitting diodes (OLEDs) commonly comprise a multilayer stack including charge-transport and charge- and exciton-blocking layers, to confine charge recombination to the emissive layer. Here, a highly simplified single-layer blue-emitting OLED is demonstrated based on thermally activated delayed fluorescence with the emitting layer simply sandwiched between ohmic contacts consisting of a polymeric conducting anode and a metal cathode. The single-layer OLED exhibits an external quantum efficiency of 27.7% with minor roll-off at high brightness. The internal quantum efficiency approaches unity, demonstrating that highly simplified single-layer OLEDs without confinement layers can achieve state-of-the-art performance, while greatly reducing the complexity of the design, fabrication, and device analysis
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|a Journal Article
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|a balanced charge transport
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|a blue light emission
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|a high-work function contacts
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|a single-layer organic light-emitting diodes
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|a thermally activated delayed fluorescence
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|a unity internal quantum efficiency
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1 |
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|a Li, Yungui
|e verfasserin
|4 aut
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1 |
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|a Tan, Xiao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Michels, Jasper J
|e verfasserin
|4 aut
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1 |
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|a Blom, Paul W M
|e verfasserin
|4 aut
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|a Wetzelaer, Gert-Jan A H
|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 35(2023), 26 vom: 02. Juni, Seite e2300574
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:26
|g day:02
|g month:06
|g pages:e2300574
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|u http://dx.doi.org/10.1002/adma.202300574
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