High-efficiency deep blue host for organic light-emitting devices

Zhi Qiang Gao; Bao Xiu Mi; Chin H. Chen; Kok Wai CHEAH; Yuen Kit CHENG; Wen Shih Wen

doi:10.1063/1.2715041

High-efficiency deep blue host for organic light-emitting devices

Zhi Qiang Gao^*, Bao Xiu Mi, Chin H. Chen, Kok Wai CHEAH, Yuen Kit CHENG, Wen Shih Wen

^*Corresponding author for this work

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

62 Citations (Scopus)

Abstract

High-efficiency deep blue organic light-emitting devices have been fabricated using asymmetrically substituted 9- (α -naphthyl)-10- (Β -naphthyl)-anthracene as blue host material and diphenyl-[4-(2- [1, 1′; 4′, 1″] terphenyl -4-yl-vinyl)-phenyl]amine as dopant emitter. With an optimized device structure and doping concentration, the deep blue electroluminescent (EL) device achieved an EL efficiency of 4.9 cdA and an external quantum efficiency of 4.4% at a current density of 20 mA cm2 at saturated blue Commission Internationale de l'Eclairage coordinates of (0.15, 0.13). The deep blue device also has a current efficiency which is invariable with driving conditions ranging from 10 to 100 mA cm2.

Original language	English
Article number	123506
Journal	Applied Physics Letters
Volume	90
Issue number	12
DOIs	https://doi.org/10.1063/1.2715041
Publication status	Published - 2007

Scopus Subject Areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2715041

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@article{f3aa837b923e47a2bf9e575981726346,

title = "High-efficiency deep blue host for organic light-emitting devices",

abstract = "High-efficiency deep blue organic light-emitting devices have been fabricated using asymmetrically substituted 9- (α -naphthyl)-10- (Β -naphthyl)-anthracene as blue host material and diphenyl-[4-(2- [1, 1′; 4′, 1″] terphenyl -4-yl-vinyl)-phenyl]amine as dopant emitter. With an optimized device structure and doping concentration, the deep blue electroluminescent (EL) device achieved an EL efficiency of 4.9 cdA and an external quantum efficiency of 4.4% at a current density of 20 mA cm2 at saturated blue Commission Internationale de l'Eclairage coordinates of (0.15, 0.13). The deep blue device also has a current efficiency which is invariable with driving conditions ranging from 10 to 100 mA cm2.",

author = "Gao, {Zhi Qiang} and Mi, {Bao Xiu} and Chen, {Chin H.} and CHEAH, {Kok Wai} and CHENG, {Yuen Kit} and Wen, {Wen Shih}",

note = "Funding Information: This work is supported by Hong Kong Baptist University Faculty Research Grant, FRG/05-06/I-48 and Hong Kong Innovation and Technology Commission Guangzhou-Hong Kong Industrial Support Grant, ITC/05-06/02. The authors thank e-Ray Optoelectronics Technology Co., Ltd., for generously supplying some of the essential OLED materials for this letter.",

year = "2007",

doi = "10.1063/1.2715041",

language = "English",

volume = "90",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "12",

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TY - JOUR

T1 - High-efficiency deep blue host for organic light-emitting devices

AU - Gao, Zhi Qiang

AU - Mi, Bao Xiu

AU - Chen, Chin H.

AU - CHEAH, Kok Wai

AU - CHENG, Yuen Kit

AU - Wen, Wen Shih

N1 - Funding Information: This work is supported by Hong Kong Baptist University Faculty Research Grant, FRG/05-06/I-48 and Hong Kong Innovation and Technology Commission Guangzhou-Hong Kong Industrial Support Grant, ITC/05-06/02. The authors thank e-Ray Optoelectronics Technology Co., Ltd., for generously supplying some of the essential OLED materials for this letter.

PY - 2007

Y1 - 2007

N2 - High-efficiency deep blue organic light-emitting devices have been fabricated using asymmetrically substituted 9- (α -naphthyl)-10- (Β -naphthyl)-anthracene as blue host material and diphenyl-[4-(2- [1, 1′; 4′, 1″] terphenyl -4-yl-vinyl)-phenyl]amine as dopant emitter. With an optimized device structure and doping concentration, the deep blue electroluminescent (EL) device achieved an EL efficiency of 4.9 cdA and an external quantum efficiency of 4.4% at a current density of 20 mA cm2 at saturated blue Commission Internationale de l'Eclairage coordinates of (0.15, 0.13). The deep blue device also has a current efficiency which is invariable with driving conditions ranging from 10 to 100 mA cm2.

AB - High-efficiency deep blue organic light-emitting devices have been fabricated using asymmetrically substituted 9- (α -naphthyl)-10- (Β -naphthyl)-anthracene as blue host material and diphenyl-[4-(2- [1, 1′; 4′, 1″] terphenyl -4-yl-vinyl)-phenyl]amine as dopant emitter. With an optimized device structure and doping concentration, the deep blue electroluminescent (EL) device achieved an EL efficiency of 4.9 cdA and an external quantum efficiency of 4.4% at a current density of 20 mA cm2 at saturated blue Commission Internationale de l'Eclairage coordinates of (0.15, 0.13). The deep blue device also has a current efficiency which is invariable with driving conditions ranging from 10 to 100 mA cm2.

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U2 - 10.1063/1.2715041

DO - 10.1063/1.2715041

M3 - Article

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VL - 90

JO - Applied Physics Letters

JF - Applied Physics Letters

SN - 0003-6951

IS - 12

M1 - 123506

ER -

High-efficiency deep blue host for organic light-emitting devices

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