White organic light-emitting diodes based on improved polyfluorene derivative

被引：8

作者：

Cong, Yang ^{[1
]}

Chen, Zhijian ^{[1
]}

Li, Fushan ^{[1
]}

Gong, Qihuang ^{[1
]}

机构：

[1] Peking Univ, Dept Phys, State Key Lab Artificial Microstruct & Mesoscop P, Beijing 100871, Peoples R China

来源：

OPTICAL MATERIALS | 2006年 / 28卷 / 8-9期

基金：

中国国家自然科学基金;

关键词：

white light-emitting diode; energy transfer; polyfluorene;

D O I：

10.1016/j.optmat.2005.05.017

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We proposed a white light-emitting diode based on a dendritic polyfluorene derivative poly((9,9-dibutyl-2,7-diiodo-9H-fluorene)trisphenylamine) (PDFA) as blue-green emitter and doped it with a fluorescent dye 4-dicyanomethylene-2-methyl-6-(p-dimethyl-aminostyryl)-4H-pyran (DCM) as red emitter. White light was achieved by the incoherent superposition of blue-green emission produced from PDFA and red emission from DCM. The Commission Internationale d'Enclairage chromaticity coordinates of the devices varied from (0.19,0.22) to (0.39,0.55) with the increase of DCM concentration (from 0 to 0.2 wt.%). (C) 2005 Elsevier B.V. All rights reserved.

引用

收藏

页码：1084 / 1087

页数：4

相关论文

共 26 条

[1] Splitting of the recombination zone in organic light emitting diodes by dye doping [J].

Berner, D ;

Nuesch, F ;

Tutis, E ;

Ma, C ;

Wang, X ;

Zhang, B ;

Zuppiroli, L .

JOURNAL OF APPLIED PHYSICS, 2004, 95 (07) :3749-3753

[2] White light emission from exciplex in a bilayer device with two blue light-emitting polymers [J].

Chao, CI ;

Chen, SA .

APPLIED PHYSICS LETTERS, 1998, 73 (04) :426-428

[3] Evolution of red organic light-emitting diodes: Materials and devices [J].

Chen, CT .

CHEMISTRY OF MATERIALS, 2004, 16 (23) :4389-4400

[4] White organic light-emitting devices using 2,5,2′,5′-tetrakis(4′-biphenylenevinyl)-biphenyl as blue light-emitting layer [J].

Cheng, G ;

Zhao, Y ;

Zhang, YF ;

Liu, SY ;

He, F ;

Zhang, HQ ;

Ma, YG .

APPLIED PHYSICS LETTERS, 2004, 84 (22) :4457-4459

[5] Light-emitting diodes from fluorene-based π-conjugated polylmers [J].

Donat-Bouillud, A ;

Lévesque, I ;

Tao, Y ;

D'Iorio, M ;

Beaupré, S ;

Blondin, P ;

Ranger, M ;

Bouchard, J ;

Leclerc, M .

CHEMISTRY OF MATERIALS, 2000, 12 (07) :1931-1936

[6] A blue organic light emitting diode [J].

Kijima, Y ;

Asai, N ;

Tamura, S .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1999, 38 (9A) :5274-5277

[7] Bright white light electroluminescent devices based on a dye-dispersed polyfluorene derivative [J].

Kim, JH ;

Herguth, P ;

Kang, MS ;

Jen, AKY ;

Tseng, YH ;

Shu, CF .

APPLIED PHYSICS LETTERS, 2004, 85 (07) :1116-1118

[8] Bright white organic light-emitting diode [J].

Ko, CW ;

Tao, YT .

APPLIED PHYSICS LETTERS, 2001, 79 (25) :4234-4236

[9] Efficient white organic light emission by single emitting layer [J].

Ko, YW ;

Chung, CH ;

Lee, JH ;

Kim, YH ;

Sohn, CY ;

Kim, BC ;

Hwang, CS ;

Song, YH ;

Lim, J ;

Ahn, YJ ;

Kang, GW ;

Lee, N ;

Lee, C .

THIN SOLID FILMS, 2003, 426 (1-2) :246-249

[10] Electroluminescence property of a novel dendritic polyfluorene derivative containing a triphenylamine group [J].

Li, FS ;

Chen, ZJ ;

Qu, B ;

Wei, W ;

Gong, QH .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (06) :847-851