In situ FTIR spectroelectrochemical characterization of n- and p-dopable phenyl-substituted polythiophenes

被引：5

作者：

Yohannes, Teketel ^{[1
]}

Lattante, Sandro ^{[2
]}

Neugebauer, Helmut ^{[2
]}

Sariciftci, Niyazi Serdar ^{[2
]}

Andersson, Mats ^{[3
]}

机构：

[1] Univ Addis Ababa, Dept Chem, Addis Ababa, Ethiopia

[2] Johannes Kepler Univ Linz, LIOS, A-4040 Linz, Austria

[3] Chalmers Univ Technol, Dept Chem & Biol Engn Polymer Technol, SE-41296 Gothenburg, Sweden

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2009年 / 11卷 / 29期

关键词：

SPECTROSCOPY; EVIDENCES; BULK;

D O I：

10.1039/b905499p

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

In situ attenuated total reflection Fourier transform infrared (ATR-FTIR) spectroelectrochemistry during oxidation (p-doping) and reduction (n-doping) of three phenyl-substituted polythiophenes, namely POPT, PEOPT and POMeOPT is presented. All the three phenyl substituted polythiophenes show both n- and p-doping. The infrared active vibration (IRAV) patterns obtained during electrochemical oxidation (p-doping) and reduction (n-doping) are compared. HOMO and LUMO energy levels are estimated from cyclic voltammetric experiments and from IRAV patterns during oxidation and reduction. A comparison shows that the standard graphical procedure to determine the onset of oxidation and reduction peaks in the cyclic voltammogram can be improved using in situ spectroscopy.

引用

页码：6283 / 6288

页数：6

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