Thermal, photophysical, and electrochemical characterization of a conjugated polyazomethine prepared by anodic electropolymerization of a thiophenoazomethine co-monomer

被引：26

作者：

Guarin, Sergio Andres Perez ^{[1
]}

Skene, W. G. ^{[1
]}

机构：

[1] Univ Montreal, Dept Chem, Montreal, PQ H3C 3J7, Canada

来源：

MATERIALS LETTERS | 2007年 / 61卷 / 29期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

electropolymerization; fluorescence; thiophenes; photophysics; ITO; electronic materials;

D O I：

10.1016/j.matlet.2007.04.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A novel conjugated azomethine co-monomer consisting uniquely of thiophenes is presented, which was prepared by a simple condensation reaction in the absence of solvent. The conjugated thiophenoazomethine triad sustained anodic electropolymerization to afford a conjugated polymer that was deposited as a thin film onto a transparent ITO electrode. The resulting polymer undergoes unprecedented reversible radical cation formation in addition to a reduction, illustrating its p- and n-type character. The measured spectroscopic properties showed that the polymer is conjugated with a low band-gap ca. 1.5 eV and its excited state energy is dissipated by nonradiative means. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：5102 / 5106

页数：5

共 41 条

[1] Electrochemical properties and electronic structures of conjugated polyquinolines and polyanthrazolines [J].

Agrawal, AK ;

Jenekhe, SA .

CHEMISTRY OF MATERIALS, 1996, 8 (02) :579-589

[2] THIOPHENE CONTAINING SCHIFF-BASES OLIGOMERS AND POLYMERS - SYNTHESIS, CHARACTERIZATION AND PROPERTIES [J].

AMARI, C ;

PELIZZI, C ;

PREDIERI, G ;

DESTRI, S ;

PORZIO, W .

SYNTHETIC METALS, 1995, 72 (01) :7-12

[3]

Bard A.J., 2001, ELECTROCHEMICAL METH, P833

[4] Comprehensive evaluation of the absorption, photophysical, energy transfer, structural, and theoretical properties of alpha-oligothiophenes with one to seven rings [J].

Becker, RS ;

deMelo, JS ;

Macanita, AL ;

Elisei, F .

JOURNAL OF PHYSICAL CHEMISTRY, 1996, 100 (48) :18683-18695

[5] A highly conjugated p- and n-type polythiophenoazomethine: Synthesis, spectroscopic, and electrochemical investigation [J].

Bourgeaux, Marie ;

Skene, W. G. .

MACROMOLECULES, 2007, 40 (06) :1792-1795

[6] Photophysical, crystallographic, and electrochemical characterization of novel conjugated thiopheno azomethines [J].

Bourgeaux, Marie ;

Perez Guarin, Sergio Andres ;

Skene, W. G. .

JOURNAL OF MATERIALS CHEMISTRY, 2007, 17 (10) :972-979

[7] CHAIN-LENGTH DEPENDENCE OF ELECTRONIC AND ELECTROCHEMICAL PROPERTIES OF CONJUGATED SYSTEMS - POLYACETYLENE, POLYPHENYLENE, POLYTHIOPHENE, AND POLYPYRROLE [J].

BREDAS, JL ;

SILBEY, R ;

BOUDREAUX, DS ;

CHANCE, RR .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1983, 105 (22) :6555-6559

[8]

Brovelli F, 2005, J CHIL CHEM SOC, V50, P597

[9] Singlet and triplet energies of α-oligothiophenes:: A spectroscopic, theoretical, and photoacoustic study:: Extrapolation to polythiophene [J].

de Melo, JS ;

Silva, LM ;

Arnaut, LG ;

Becker, RS .

JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (12) :5427-5433

[10] Photophysical studies of mixed furan, pyrrole, and thiophene-containing oligomers with three and five rings [J].

de Melo, JS ;

Elisei, F ;

Becker, RS .

JOURNAL OF CHEMICAL PHYSICS, 2002, 117 (09) :4428-4435

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