Highly efficient red electroluminescence from stacked organic light-emitting devices based on a europium complex

Han You; Junfeng Fang; Yu Xuan; Dongge Ma

doi:10.1016/j.mseb.2006.04.025

Highly efficient red electroluminescence from stacked organic light-emitting devices based on a europium complex

Han You
, Junfeng Fang
, Yu Xuan
, Dongge Ma^*

^*Corresponding author for this work

CAS - Changchun Institute of Applied Chemistry

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

22 Scopus citations

Abstract

Stacked organic light-emitting devices (OLEDs) based on a europium complex Eu(TTA)₃(Tmphen) (TTA = thenoyltrifluoroacetone,Tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline) were fabricated. In this stacked OLEDs, Li:BCP/V₂O₅ was used the intermediate charge generation layer sandwiched between two identical emissive units consisting of TPD/CBP:DCJTB:Eu(TTA)₃(Tmphen)/BCP. As expected, the brightness and electroluminescent (EL) current efficiency were approximately enhanced by double times that of conventional single-unit devices. The stacked OLEDs showed the maximum luminance up to 3000 cd/m² at a current density of 190 mA/cm² and a current efficiency of 14.5 cd/A at a current density of 0.08 mA/cm². At the brightness of 100 cd/m², the current efficiency reached 10 cd/A at a current density of 1.6 mA/cm².

Original language	English
Pages (from-to)	252-255
Number of pages	4
Journal	Materials Science and Engineering: B
Volume	131
Issue number	1-3
DOIs	https://doi.org/10.1016/j.mseb.2006.04.025
State	Published - 15 Jul 2006
Externally published	Yes

Keywords

Europium complex
Organic light-emitting diodes
Stacked

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10.1016/j.mseb.2006.04.025

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title = "Highly efficient red electroluminescence from stacked organic light-emitting devices based on a europium complex",

abstract = "Stacked organic light-emitting devices (OLEDs) based on a europium complex Eu(TTA)3(Tmphen) (TTA = thenoyltrifluoroacetone,Tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline) were fabricated. In this stacked OLEDs, Li:BCP/V2O5 was used the intermediate charge generation layer sandwiched between two identical emissive units consisting of TPD/CBP:DCJTB:Eu(TTA)3(Tmphen)/BCP. As expected, the brightness and electroluminescent (EL) current efficiency were approximately enhanced by double times that of conventional single-unit devices. The stacked OLEDs showed the maximum luminance up to 3000 cd/m2 at a current density of 190 mA/cm2 and a current efficiency of 14.5 cd/A at a current density of 0.08 mA/cm2. At the brightness of 100 cd/m2, the current efficiency reached 10 cd/A at a current density of 1.6 mA/cm2.",

keywords = "Europium complex, Organic light-emitting diodes, Stacked",

author = "Han You and Junfeng Fang and Yu Xuan and Dongge Ma",

year = "2006",

month = jul,

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doi = "10.1016/j.mseb.2006.04.025",

language = "英语",

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journal = "Materials Science and Engineering: B",

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T1 - Highly efficient red electroluminescence from stacked organic light-emitting devices based on a europium complex

AU - You, Han

AU - Fang, Junfeng

AU - Xuan, Yu

AU - Ma, Dongge

PY - 2006/7/15

Y1 - 2006/7/15

N2 - Stacked organic light-emitting devices (OLEDs) based on a europium complex Eu(TTA)3(Tmphen) (TTA = thenoyltrifluoroacetone,Tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline) were fabricated. In this stacked OLEDs, Li:BCP/V2O5 was used the intermediate charge generation layer sandwiched between two identical emissive units consisting of TPD/CBP:DCJTB:Eu(TTA)3(Tmphen)/BCP. As expected, the brightness and electroluminescent (EL) current efficiency were approximately enhanced by double times that of conventional single-unit devices. The stacked OLEDs showed the maximum luminance up to 3000 cd/m2 at a current density of 190 mA/cm2 and a current efficiency of 14.5 cd/A at a current density of 0.08 mA/cm2. At the brightness of 100 cd/m2, the current efficiency reached 10 cd/A at a current density of 1.6 mA/cm2.

AB - Stacked organic light-emitting devices (OLEDs) based on a europium complex Eu(TTA)3(Tmphen) (TTA = thenoyltrifluoroacetone,Tmphen = 3,4,7,8-tetramethyl-1,10-phenanthroline) were fabricated. In this stacked OLEDs, Li:BCP/V2O5 was used the intermediate charge generation layer sandwiched between two identical emissive units consisting of TPD/CBP:DCJTB:Eu(TTA)3(Tmphen)/BCP. As expected, the brightness and electroluminescent (EL) current efficiency were approximately enhanced by double times that of conventional single-unit devices. The stacked OLEDs showed the maximum luminance up to 3000 cd/m2 at a current density of 190 mA/cm2 and a current efficiency of 14.5 cd/A at a current density of 0.08 mA/cm2. At the brightness of 100 cd/m2, the current efficiency reached 10 cd/A at a current density of 1.6 mA/cm2.

KW - Europium complex

KW - Organic light-emitting diodes

KW - Stacked

UR - https://www.scopus.com/pages/publications/33745641901

U2 - 10.1016/j.mseb.2006.04.025

DO - 10.1016/j.mseb.2006.04.025

M3 - 文章

AN - SCOPUS:33745641901

SN - 0921-5107

VL - 131

SP - 252

EP - 255

JO - Materials Science and Engineering: B

JF - Materials Science and Engineering: B

IS - 1-3

ER -

Highly efficient red electroluminescence from stacked organic light-emitting devices based on a europium complex

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Keywords

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