Influence of extended π-conjugation units on carrier mobilities in conducting polymers

被引：19
作者：
Harima, Y
Kim, DH
Tsutitori, Y
Jiang, X
Patil, R
Ooyama, Y
Ohshita, J
Kunai, A
机构：
[1] Hiroshima Univ, Grad Sch Engn, Dept Appl Chem, Higashihiroshima 7398527, Japan
[2] Nanjing Normal Univ, Coll Chem & Environm Sci, Nanjing 210097, Peoples R China
[3] Natl Chem Lab, Polymer Sci & Engn Div, Pune 411008, Maharashtra, India
来源：
CHEMICAL PHYSICS LETTERS | 2006年 / 420卷 / 4-6期
关键词：
D O I：
10.1016/j.cplett.2006.01.009
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：
Carrier mobilities in thin films of copolymers with repeat units consisting of oligothiophenes bridged by Si atoms are measured over a range of doping levels, where the numbers of thienylenes in the repeat unit are 7, 8, 10, 12, and 14. The mobilities for these polymer films increased with the increase in doping level and the mobility enhancement followed an increasing order of the pi-conjugation length. The magnitude of the mobility increase for the Si polymer comprising 14 thiophene units reached ca. 10(4), implying that this pi-conjugation length is almost sufficient to reproduce transport properties of polythiophenes. (c) 2006 Elsevier B.V. All rights reserved.
引用
收藏
页码：387 / 390
页数：4
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