Polaron dissociation in conducting polymers by high electric fields.

被引：0
|
作者：
Conwell, EM [1 ]
Rakhmanova, SV [1 ]
机构：
[1] Univ Rochester, Dept Chem, Ctr Photoinduced Charge Transfer, Rochester, NY 14627 USA
来源：
ORGANIC PHOTOREFRACTIVES, PHOTORECEPTORS, WAVEGUIDES, AND FIBERS | 1999年 / 3799卷
关键词：
polaron; high electric field; conducting polymer; current-voltage characteristic;
D O I：
10.1117/12.363892
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Addition of an electron or hole to a conducting polymer chain has been shown to cause the chain to distort, creating a large polaron. We show, by numerical solution of the coupled equations for the electron wavefunctions and the lattice displacements on a polyacetylene chain with an extra electron, that the polaron does not form in electric fields greater than or equal to 6x10(4)V/cm. In fields greater than or equal to 10(6) V/cm an already formed polaron will be dissociated Implications for the current-voltage characteristic will be discussed.
引用
收藏
页码：132 / 137
页数：6
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