Electrically conductive and fluorescent poly[1,4-bis(3-alkyl-2-thienyl)phenylenes]: syntheses and preliminary characterization aspects

被引：34

作者：

Ng, SC ^{[1
]}

Xu, JM ^{[1
]}

Chan, HSO ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Chem, Singapore 119260, Singapore

来源：

SYNTHETIC METALS | 1998年 / 92卷 / 01期

关键词：

poly[1,4-bis(3-alkyl-2-thienyl)phenylene; conductivity; fluorescence quantum yield; thermal stability;

D O I：

10.1016/S0379-6779(98)80019-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A series of polymers containing alternating phenylene and symmetrically substituted bithiophene repeat units have been synthesized and characterized using UV-Vis absorption spectroscopy, fluorescence emission spectroscopy, conductivity measurement and thermal analyses. The results reveal that the polymers have a bandgap energy of 2.5 eV and a fluorescence quantum yield of up to 26% with respect to quinine sulfate. The polymers show a maximum conductivity of 0.2 S cm(-1) upon doping with I-2 and display good thermal stability in both neutral and doped states. The influence of alkyl chain size on conductivity, spectral behavior and thermal stability is discussed. (C) 1998 Elsevier Science S.A.

引用

页码：33 / 37

页数：5

共 26 条

[1] REGIOCONTROLLED SYNTHESIS OF POLY(3-ALKYLTHIOPHENES) MEDIATED BY RIEKE ZINC - THEIR CHARACTERIZATION AND SOLID-STATE PROPERTIES [J].

CHEN, TA ;

WU, XM ;

RIEKE, RD .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1995, 117 (01) :233-244

[2] TIME-RESOLVED FLUORESCENCE STUDIES ON THIOPHENE OLIGOMERS IN SOLUTION [J].

CHOSROVIAN, H ;

RENTSCH, S ;

GREBNER, D ;

DAHM, DU ;

BIRCKNER, E ;

NAARMANN, H .

SYNTHETIC METALS, 1993, 60 (01) :23-26

[3] ELECTRONIC-STRUCTURE OF COPOLYMERS BASED ON PHENYLENE AND THIOPHENE UNITS [J].

CZERWINSKI, W ;

NUCKER, N ;

FINK, J .

SYNTHETIC METALS, 1988, 25 (01) :71-77

[4] NEW RIGID BACKBONE CONJUGATED ORGANIC POLYMERS WITH LARGE FLUORESCENCE QUANTUM YIELDS [J].

DAVEY, AP ;

ELLIOTT, S ;

OCONNOR, O ;

BLAU, W .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1995, (14) :1433-1434

[5]

DEMAS JN, 1971, J PHYS CHEM-US, V75, P991, DOI 10.1021/j100678a001

[6] CONFORMATIONAL STUDY ON ALKYL-SUBSTITUTED THIOPHENE OLIGOMERS [J].

DOSSANTOS, DA ;

GALVAO, DS ;

LAKS, B ;

DOSSANTOS, MC .

CHEMICAL PHYSICS LETTERS, 1991, 184 (5-6) :579-583

[7]

FELDHUES M, 1989, SYNTHETIC MET, V28, pC487, DOI 10.3724/SP.J.1001.2011.03729

[8] REGIODEFINED SUBSTITUTED POLY(2,5-THIENYLENE)S [J].

GALLAZZI, MC ;

CASTELLANI, L ;

MARIN, RA ;

ZERBI, G .

JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, 1993, 31 (13) :3339-3349

[9]

Greenham C., 1993, SYNTHETIC MET, V55-57, P4143

[10] THERMAL UNDOPING IN POLY(3-ALKYLTHIOPHENES) [J].

GUSTAFSSON, G ;

INGANAS, O ;

NILSSON, JO ;

LIEDBERG, B .

SYNTHETIC METALS, 1988, 26 (03) :297-309

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