A Spacer Effect on Electroluminescent Characteristics of White Organic Light-Emitting Diodes

被引：0

作者：

Seo, Ji Hoon ^{[2
]}

Kim, Gu Young ^{[2
]}

Park, Jung Sun ^{[2
]}

Lee, Kum Hee ^{[1
]}

Yoon, Seung Soo ^{[1
]}

Kim, Young Kwan ^{[2
]}

机构：

[1] Sungkyunkwan Univ, Dept Chem, Suwon 440746, South Korea

[2] Hongik Univ, Dept Informat Display, Seoul 121791, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 12期

关键词：

White Organic Light-Emitting Diodes; Spacer; DEVICES;

D O I：

10.1166/jnn.2009.1657

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The authors have demonstrated efficient and color-stable white organic light-emitting diodes (WOLEDs) by using three emitters, 4 ''-(2,2-diphenylvinyl)-1-[4-(N,N-diphenylamino)styryl]-terphenyl (PVAS-tPh), fac tris(2-phenypyridine) irdium(III) (Ir(ppy)(3)), and Bis(5-benzoyl-2-phenylpyridinato-C,N)iridium(III) (acetylacetonate) (Bzppy)(2)Ir(III)acac). In this WOLEDs, 4,4'-N, N'-dicarbazole-biphenyl (CBP) were used as a spacer among three emitting layers. CBP between red and green emitting layers prevented the Commission Internationale de L'Eclairage (CIEx,y) coordinates change of white emission. As a result, WOLEDs showed a minimal change of Delta CIEx,y < (0.01, 0.02) for the brightness change form 100 to 20 000 cd/m(2).

引用

页码：7052 / 7055

页数：4

共 10 条

[1] Efficient pure-white organic light-emitting diodes with a solution-processed, binary-host employing single emission layer [J].

Jou, JH ;

Sun, MC ;

Chou, HH ;

Li, CH .

APPLIED PHYSICS LETTERS, 2006, 88 (14)

[2] White stacked electrophosphorescent organic light-emitting devices employing MoO3 as a charge-generation layer [J].

Kanno, H ;

Holmes, RJ ;

Sun, Y ;

Kena-Cohen, S ;

Forrest, SR .

ADVANCED MATERIALS, 2006, 18 (03) :339-+

[3] Stable styrylamine-doped blue organic electroluminescent device based on 2-methyl-9,10-di(2-naphthyl)anthracene [J].

Lee, MT ;

Chen, HH ;

Liao, CH ;

Tsai, CH ;

Chen, CH .

APPLIED PHYSICS LETTERS, 2004, 85 (15) :3301-3303

[4] Blue phosphorescent dye as sensitizer and emitter for white organic light-emitting diodes [J].

Lei, GT ;

Wang, LD ;

Qiu, Y .

APPLIED PHYSICS LETTERS, 2004, 85 (22) :5403-5405

[5] Blue luminescence of facial tris(quinolin-8-olato)aluminum(III) in solution, crystals, and thin films [J].

Muccini, M ;

Loi, MA ;

Kenevey, K ;

Zamboni, R ;

Masciocchi, N ;

Sironi, A .

ADVANCED MATERIALS, 2004, 16 (11) :861-864

[6] Highly efficient white organic light-emitting diodes using two emitting materials for three primary colors (red, green, and blue) [J].

Seo, Ji Hoon ;

Seo, Ji Hyun ;

Park, Jung Hyun ;

Kim, Young Kwan ;

Kim, Jun Ho ;

Hyung, Gun Woo ;

Lee, Kum Hee ;

Yoon, Seung Soo .

APPLIED PHYSICS LETTERS, 2007, 90 (20)

[7] Hybrid spacer for high-efficiency white organic light-emitting diodes [J].

Seo, Ji Hoon ;

Park, Il Houng ;

Kim, Gu Young ;

Lee, Kum Hee ;

Kim, Min Kyu ;

Yoon, Seung Soo ;

Kim, Young Kwan .

APPLIED PHYSICS LETTERS, 2008, 92 (18)

[8] Management of singlet and triplet excitons for efficient white organic light-emitting devices [J].

Sun, YR ;

Giebink, NC ;

Kanno, H ;

Ma, BW ;

Thompson, ME ;

Forrest, SR .

NATURE, 2006, 440 (7086) :908-912

[9] ORGANIC ELECTROLUMINESCENT DIODES [J].

TANG, CW ;

VANSLYKE, SA .

APPLIED PHYSICS LETTERS, 1987, 51 (12) :913-915

[10] Excimer-based white phosphorescent organic light emitting diodes with nearly 100 % internal quantum efficiency [J].

Williams, Evan L. ;

Haavisto, Kirsi ;

Li, Jian ;

Jabbour, Ghassan E. .

ADVANCED MATERIALS, 2007, 19 (02) :197-+

← 1 →