STRONG DISORDER AND THE NONLINEAR SUSCEPTIBILITY OF CONJUGATED POLYMERS

被引：11

作者：

HONE, D

SINGH, C

机构：

[1] Department of Physics, University of California, Santa Barbara

来源：

PHYSICAL REVIEW B | 1992年 / 45卷 / 07期

关键词：

D O I：

10.1103/PhysRevB.45.3455

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effect of quenched randomly distributed bond-breaking defects on nonlinear susceptibilities of conjugated polymers is studied within a tight-binding (Huckel) model. The susceptibility corresponding to third-harmonic generation, chi(3)(3-omega), is calculated as a function of defect concentration p in chains of length N. Resonant peaks are broadened, as expected, but the overall suppression of \chi(3)\ is weaker than one might assume on the basis of the average segment length between defects.

引用

页码：3455 / 3460

页数：6

共 36 条

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