Hole-transporting polymers containing carbazol-3,9-diyl and 1,4-phenylene fragments in the main chain

被引：4

作者：

Grigalevicius, Saulius ^{[1
]}

Simokaitiene, Jurate ^{[1
]}

Grazulevicius, Juozas V. ^{[1
]}

Ma, Liang ^{[2
]}

Xie, Zhiyuan ^{[2
]}

机构：

[1] Kaunas Univ Technol, Dept Organ Technol, LT-50254 Kaunas, Lithuania

[2] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China

来源：

SYNTHETIC METALS | 2008年 / 158卷 / 19-20期

关键词：

Amorphous material; Copolymer; Light emitting diode; Thermal stability;

D O I：

10.1016/j.synthmet.2008.04.025

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

New carbazole-based polymers, which contain various content of electro-active fragments in the main chain connected via alkylene spacers, have been synthesized by Ni(0)-catalyzed Yamamoto-type aryl-aryl coupling reactions. These compounds represent amorphous materials of high thermal stability with glass-transition temperatures of 139-151 degrees C and thermal decomposition starting at temperatures above 400 degrees C. UV-vis absorption and photoluminescence emission spectra of the materials confirmed that the conjugated segments in the macromolecules are rather short. However, the polymers with varying content of the electro-active chromophores demonstrate different charge injection and transport properties in multilayer light emitting diodes with the polymers as the hole transport and tris(8-quinolinato)aluminium (Alq(3)) as the electroluminescent/electron transport layer. The device based on the polymer containing bicarbazole segments in the main chain exhibits the best overall performance (turn-on voltage: 4V; maximum photometric efficiency: 2.6cd/A; maximum brightness: approximately 2200cd/m(2)). (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：739 / 743

页数：5

共 26 条

[1] A low-bandgap poly(2,7-carbazole) derivative for use in high-performance solar cells [J].

Blouin, Nicolas ;

Michaud, Alexandre ;

Leclerc, Mario .

ADVANCED MATERIALS, 2007, 19 (17) :2295-+

[2] CHEMICAL TUNING OF THE ELECTRONIC-PROPERTIES OF POLY(P-PHENYLENEVINYLENE)-BASED COPOLYMERS [J].

BURN, PL ;

KRAFT, A ;

BAIGENT, DR ;

BRADLEY, DDC ;

BROWN, AR ;

FRIEND, RH ;

GYMER, RW ;

HOLMES, AB ;

JACKSON, RW .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1993, 115 (22) :10117-10124

[3] Stability of n-type doped conducting polymers and consequences for polymeric microelectronic devices [J].

deLeeuw, DM ;

Simenon, MMJ ;

Brown, AR ;

Einerhand, REF .

SYNTHETIC METALS, 1997, 87 (01) :53-59

[4] Green exciplex emission from a bilayer light-emitting diode containing a rare earth ternary complex [J].

Gao, DQ ;

Huang, YY ;

Huang, CH ;

Li, FY ;

Huang, L .

CHEMICAL PHYSICS LETTERS, 2001, 350 (3-4) :206-210

[5] Carbazole-containing polymers: synthesis, properties and applications [J].

Grazulevicius, JV ;

Strohriegl, P ;

Pielichowski, J ;

Pielichowski, K .

PROGRESS IN POLYMER SCIENCE, 2003, 28 (09) :1297-1353

[6] 3,6(2,7),9-Substituted carbazoles as electroactive amorphous materials for optoelectronics [J].

Grigalevicius, S .

SYNTHETIC METALS, 2006, 156 (01) :1-12

[7] Photoconductive molecular glasses consisting of twin molecules [J].

Grigalevicius, S ;

Blazys, G ;

Ostrauskaite, J ;

Grazulevicius, J ;

Gaidelis, V ;

Jankauskas, V .

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, 2003, 154 (2-3) :161-167

[8] TRANSIENT-BEHAVIOR OF ORGANIC THIN-FILM ELECTROLUMINESCENCE [J].

HOSOKAWA, C ;

TOKAILIN, H ;

HIGASHI, H ;

KUSUMOTO, T .

APPLIED PHYSICS LETTERS, 1992, 60 (10) :1220-1222

[9] Poly(aryl ether)s containing ter- and pentafluorene pendants for efficient blue light emission [J].

Jiang, GX ;

Yao, B ;

Geng, YH ;

Cheng, YX ;

Xie, ZY ;

Wang, LX ;

Jin, XB ;

Wang, FS .

MACROMOLECULES, 2006, 39 (04) :1403-1409

[10] ELECTRON AND HOLE MOBILITY IN TRIS(8-HYDROXYQUINALINOLATO-N1,O8) ALUMINUM [J].

KEPLER, RG ;

BEESON, PM ;

JACOBS, SJ ;

ANDERSON, RA ;

SINCLAIR, MB ;

VALENCIA, VS ;

CAHILL, PA .

APPLIED PHYSICS LETTERS, 1995, 66 (26) :3618-3620

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