Study of polaron interactions of regiorandom poly(3-dodecylthiophene) and their influence on magnetic properties

被引：6

作者：

Cík, G

Sersen, F

Dlhán, L

机构：

[1] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Environm Engn, Bratislava 81237, Slovakia

[2] Comenius Univ, Inst Chem, Fac Nat Sci, Bratislava 84215, Slovakia

[3] Slovak Univ Technol Bratislava, Fac Chem & Food Technol, Dept Inorgan Chem, Bratislava 81237, Slovakia

来源：

SYNTHETIC METALS | 2004年 / 144卷 / 01期

关键词：

conducting polymers; polyalkylthiophenes; poly(3-dodecylthiophene); polarons; magnetism;

D O I：

10.1016/j.synthmet.2004.01.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of structural changes in regiorandom poly(3-dodecylthiophene) (PDDT) on the interactions of polarons was studied. It was found that changes in side-chains and in the entire polymeric system, expressed by the glass transition temperature T-g (approximate to230 K), affected the system's magnetic properties. Structural changes observed in the range of T approximate to100-300 K are dominated by processes dissipating magnetic energy. At low temperatures (T < 100 K) energy dissipating processes were not observed, rather magnetic properties were determined by transitions of polarons to bipolarons. Overall the material behaves as a paramagnet, with the curve (susceptibility versus temperature) characteristic for antiferromagnetics. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：55 / 60

页数：6

共 17 条

[1] Soluble and processable regioregular poly(3-hexylthiophene) for thin film field-effect transistor applications with high mobility [J].