Enhancement of efficiency and lifetime of blue organic light-emitting diodes using two dopants in single emitting layer

Jianning Yu; Na Wei; Chong Li; Bin Wei; Wei Huang; Taiju Tsuboi; Jianhua Zhang; Zhilin Zhang

doi:10.1155/2012/247976

Enhancement of efficiency and lifetime of blue organic light-emitting diodes using two dopants in single emitting layer

Jianning Yu, Na Wei, Chong Li, Bin Wei, Wei Huang, Taiju Tsuboi, Jianhua Zhang, Zhilin Zhang

Research output: Contribution to journal › Article › peer-review

4 Scopus citations

Abstract

We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4-tris(N-(2-naphthyl)-N-phenyl-amino) triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/ 9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl- benzene (DSA-ph) 3wt/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1wt) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge balance and expansion of exciton recombination zone. The better charge balance was obtained by reducing the electron mobility of ADN which was higher than the hole mobility in the case of non-codoping.

Original language	English
Article number	247976
Journal	Advances in Materials Science and Engineering
Volume	2012
DOIs	https://doi.org/10.1155/2012/247976
State	Published - 2012
Externally published	Yes

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title = "Enhancement of efficiency and lifetime of blue organic light-emitting diodes using two dopants in single emitting layer",

abstract = "We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4-tris(N-(2-naphthyl)-N-phenyl-amino) triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/ 9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl- benzene (DSA-ph) 3wt/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1wt) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge balance and expansion of exciton recombination zone. The better charge balance was obtained by reducing the electron mobility of ADN which was higher than the hole mobility in the case of non-codoping.",

author = "Jianning Yu and Na Wei and Chong Li and Bin Wei and Wei Huang and Taiju Tsuboi and Jianhua Zhang and Zhilin Zhang",

year = "2012",

doi = "10.1155/2012/247976",

language = "英语",

volume = "2012",

journal = "Advances in Materials Science and Engineering",

issn = "1687-8434",

publisher = "John Wiley and Sons Ltd",

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T1 - Enhancement of efficiency and lifetime of blue organic light-emitting diodes using two dopants in single emitting layer

AU - Yu, Jianning

AU - Wei, Na

AU - Li, Chong

AU - Wei, Bin

AU - Huang, Wei

AU - Tsuboi, Taiju

AU - Zhang, Jianhua

AU - Zhang, Zhilin

PY - 2012

Y1 - 2012

N2 - We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4-tris(N-(2-naphthyl)-N-phenyl-amino) triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/ 9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl- benzene (DSA-ph) 3wt/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1wt) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge balance and expansion of exciton recombination zone. The better charge balance was obtained by reducing the electron mobility of ADN which was higher than the hole mobility in the case of non-codoping.

AB - We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4-tris(N-(2-naphthyl)-N-phenyl-amino) triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/ 9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl- benzene (DSA-ph) 3wt/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1wt) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge balance and expansion of exciton recombination zone. The better charge balance was obtained by reducing the electron mobility of ADN which was higher than the hole mobility in the case of non-codoping.

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DO - 10.1155/2012/247976

M3 - 文章

AN - SCOPUS:84863654455

SN - 1687-8434

VL - 2012

JO - Advances in Materials Science and Engineering

JF - Advances in Materials Science and Engineering

M1 - 247976

ER -

Enhancement of efficiency and lifetime of blue organic light-emitting diodes using two dopants in single emitting layer

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