Efficient, color stable white organic light-emitting diode based on high energy level yellowish-green dopants

被引：168

作者：

Park, Young-Seo ^{[1
]}

Kang, Jae-Wook ^{[1
]}

Kang, Dong Min ^{[2
]}

Park, Jong-Won ^{[2
]}

Kim, Yoon-Hi ^{[3
]}

Kwon, Soon-Ki ^{[2
]}

Kim, Jang-Joo ^{[1
]}

机构：

[1] Seoul Natl Univ, Dept Mat Sci & Engn, OLED Ctr, Seoul 151744, South Korea

[2] Gyeongsang Natl Univ, Sch Nano & Adv Mat Engn, Jinju 660701, South Korea

[3] Gyeongsang Natl Univ, Dept Chem, Jinju 660701, South Korea

来源：

ADVANCED MATERIALS | 2008年 / 20卷 / 10期

关键词：

D O I：

10.1002/adma.200702435

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

White OLEDs with high efficiency high color stability are developed by using high energy level dopants. The white OLEDs showed high external quantum efficiency 11.7% and remarkable color stability with the variation of CIE chromaticity coordinates less than (0.02, 0.01) between 10cd m(-2) and 5000 cd m(-2). Moreover roll-off of efficiency was low and the CRI value was over 87.

引用

页码：1957 / +

页数：6

共 29 条

[1] High efficiency single dopant white electrophosphorescent light emitting diodes [J].

Adamovich, V ;

Brooks, J ;

Tamayo, A ;

Alexander, AM ;

Djurovich, PI ;

D'Andrade, BW ;

Adachi, C ;

Forrest, SR ;

Thompson, ME .

NEW JOURNAL OF CHEMISTRY, 2002, 26 (09) :1171-1178

[2] Highly efficient white organic electroluminescent devices based on tandem architecture [J].

Chang, CC ;

Chen, JF ;

Hwang, SW ;

Chen, CH .

APPLIED PHYSICS LETTERS, 2005, 87 (25) :1-3

[3] Bright white small molecular organic light-emitting devices based on a red-emitting guest-host layer and blue-emitting 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl [J].

Cheon, KO ;

Shinar, J .

APPLIED PHYSICS LETTERS, 2002, 81 (09) :1738-1740

[4] Highly-bright white organic light-emitting diodes based on a single emission layer [J].

Chuen, CH ;

Tao, YT .

APPLIED PHYSICS LETTERS, 2002, 81 (24) :4499-4501

[5]

D'Andrade BW, 2002, ADV MATER, V14, P1032, DOI 10.1002/1521-4095(20020805)14:15<1032::AID-ADMA1032>3.0.CO

[6]

2-6

[7] Efficient organic electrophosphorescent white-light-emitting device with a triple doped emissive layer [J].

D'Andrade, BW ;

Holmes, RJ ;

Forrest, SR .

ADVANCED MATERIALS, 2004, 16 (07) :624-+

[8] Organic light-emitting devices for illumination quality white light [J].

Duggal, AR ;

Shiang, JJ ;

Heller, CM ;

Foust, DF .

APPLIED PHYSICS LETTERS, 2002, 80 (19) :3470-3472

[9] White light emission from exciplex using tris-(8-hydroxyquinoline)aluminum as chromaticity-tuning layer [J].

Feng, J ;

Li, F ;

Gao, WB ;

Liu, SY ;

Liu, Y ;

Wang, Y .

APPLIED PHYSICS LETTERS, 2001, 78 (25) :3947-3949

[10] White organic light-emitting diodes based on tandem structures [J].

Guo, FW ;

Ma, DG .

APPLIED PHYSICS LETTERS, 2005, 87 (17) :1-3

← 1 2 3 →