Synthesis and Light-emitting Properties of Novel Electrophosphorescent Poly(carbazole-co-pyridine)

被引：0

作者：

Zhang Anqi ^{[1
]}

Zou Jianhua ^{[1
]}

Ying Lei ^{[1
]}

Chen Qiliang ^{[1
]}

Chen Bing ^{[1
]}

Yang Wei ^{[1
]}

Cao Yong ^{[1
]}

机构：

[1] S China Univ Technol, Key Lab Specially Funct Mat, Minist Educ, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Peoples R China

来源：

ACTA CHIMICA SINICA | 2009年 / 67卷 / 23期

关键词：

poly(carbazole-co-pyridine); Ir complex; orange light-emitting; CYCLOMETALATED IR COMPLEXES; ALT-CARBAZOLE COPOLYMERS; IRIDIUM COMPLEXES; HIGH-EFFICIENCY; POLYMERS; DIODES; FLUORENE; DEVICES; CHROMOPHORES; BACKBONE;

D O I：

暂无

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of novel poly(carbazole-co-pyridine)s conjugated with copolymerized chelated Ir complexes in the main chain were synthesized by Suzuki polycondensation. Based on such copolymers, the electroluminescent devices were fabricated with configuration of ITO/PEDOT:PSS/polymer+PBD (w=30%)/CsF/Al. The best device performances were achieved based on copolymer PCzPyIrMppy2, which showed the maximal quantum efficiency (QE(ext)) and luminous efficiency (LE) of 4.1% and 6.1 cd/A, respectively, at current density (J) of 20.8 mA/cm(2). Besides, the QE(ext) and LE remained 3.2% and 4.8 cd/A, respectively, with peak emission at 570 nm and maximal luminance of 13251 cd/m(2). This result indicated that incorporation of the phosphorescent complex into the conjugated polymer main chain was a new way to simultaneously realize high efficiency, long-term stability of phosphorescent polymer light-emitting diodes.

引用

页码：2745 / 2749

页数：5

共 20 条

[1] High-efficiency electrophosphorescent copolymers containing charged iridium complexes in the side chains
Du, Bin
Wang, Lei
Wu, HongBin
Yang, Wei
Zhang, Yong
Liu, RanSheng
Sun, MingLiang
Peng, Junbiao
Cao, Yong
[J]. CHEMISTRY-A EUROPEAN JOURNAL, 2007, 13 (26) : 7432 - 7442
[2] Gong X, 2002, ADV MATER, V14, P581, DOI 10.1002/1521-4095(20020418)14:8<581::AID-ADMA581>3.0.CO
[3] 2-B
[4] Electrophosphorescence from a polymer guest-host system with an iridium complex as guest: Forster energy transfer and charge trapping
Gong, X
Ostrowski, JC
Moses, D
Bazan, GC
Heeger, AJ
[J]. ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (06) : 439 - 444
[5] A conjugated, neutral surfactant as electron-injection material for high-efficiency polymer light-emitting diodes
Huang, Fei
Niu, Yu-Hua
Zhang, Yong
Ka, Jae-Won
Liu, Michelle S.
Jen, Alex K. -Y
[J]. ADVANCED MATERIALS, 2007, 19 (15) : 2010 - +
[6] Novel electroluminescent polymers derived from carbazole and benzothiadiazole
Huang, J
Niu, YH
Yang, W
Mo, YQ
Yuan, M
Cao, Y
[J]. MACROMOLECULES, 2002, 35 (16) : 6080 - 6082
[7] High-efficiency, saturated red-phosphorescent polymer light-emitting diodes based on conjugated and non-conjugated polymers doped with an Ir complex
Jiang, CY
Yang, W
Peng, JB
Xiao, S
Cao, Y
[J]. ADVANCED MATERIALS, 2004, 16 (06) : 537 - +
[8] High-efficiency electrophosphorescent fluorene-alt-carbazole copolymers N-grafted with cyclometalated Ir complexes
Jiang, JX
Jiang, CY
Yang, W
Zhen, HG
Huang, F
Cao, Y
[J]. MACROMOLECULES, 2005, 38 (10) : 4072 - 4080
[9] Synthesis and properties of novel electrophosphorescent polymers from quinoline- and pyridine-end-capped polyfluorenes with rhenium(I) chromophores
Lee, Po-I
Hsu, Steve Lien-Chung
[J]. JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 2007, 45 (08) : 1492 - 1498
[10] Phosphorescent polymer light-emitting diodes based on an end-capped polyfluorene with Rhenium (I) chromophores
Lee, Po-I.
Hsu, Steve Lien-Chung
Chung, Chia-Tin
[J]. SYNTHETIC METALS, 2006, 156 (14-15) : 907 - 910

← 1 2 →