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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201104403
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|a eng
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|a Pu, Yong-Jin
|e verfasserin
|4 aut
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|a Optimizing the charge balance of fluorescent organic light-emitting devices to achieve high external quantum efficiency beyond the conventional upper limit
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|c 2012
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|a Text
|b txt
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|a ƒaComputermedien
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|a Date Completed 23.07.2012
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a The external quantum efficiencies (EQEs) of fluorescent light emitting devices are drastically improved by optimizing the charge balance. When N,N'-di(naphthalene-1-yl)- N,N'-diphenylbenzidine (NPD) is used as a hole-transporting layer (HTL) and Alq(3) as an electron-transporting layer (ETL) with the green dopant 2,3,6,7-tetrahydro-1,1,7,7-tetramethyl-1H,5H,11H-10-(2-benzothiazolyl)quinolizino-[9,9a,1gh]coumarin (C545T), the EQE is observed to be approximately 3%. However, when the HTL and ETL materials are optimized, a 7.5% external quantum efficiency (EQE) in a green-emitting device and an 8.2% EQE in a blue-emitting device are achieved at 100 cd m(-2)
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Coumarins
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|a Naphthalenes
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|a Nakata, Go
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|a Satoh, Fumiya
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|a Sasabe, Hisahiro
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|a Yokoyama, Daisuke
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|a Kido, Junji
|e verfasserin
|4 aut
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 24(2012), 13 vom: 03. Apr., Seite 1765-70
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