Mechanism of dedoping processes of conducting poly(3-alkylthiophenes)

被引：36
作者：
Koizumi, H [1 ]
Dougauchi, H [1 ]
Ichikawa, T [1 ]
机构：
[1] Hokkaido Univ, Grad Sch Engn, Div Mat Chem, Kita Ku, Sapporo, Hokkaido 0608628, Japan
来源：
JOURNAL OF PHYSICAL CHEMISTRY B | 2005年 / 109卷 / 32期
关键词：
D O I：
10.1021/jp051989k
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：
To clarify the mechanism of thermal dedoping processes of conducting poly(3-alkylthiophenes), temporal changes in electric conductivity, photoabsorption, and electron spin resonance of iodine-doped poly(3-octylthiophene) were examined. A decrease in the electric conductivity was accompanied by a decrease in the photoabsorption of the polymer cation and an increase in the spin concentration: the cation is a spinless charge carrier and it was converted to an immobile paramagnetic species. The conversion proceeds through deprotonation of the cation, which results in the formation of a polyenyl radical.
引用
收藏
页码：15288 / 15290
页数：3
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