The effect of variable chain length on the electronic properties of electroluminescent polymers

被引：8

作者：

Almeida, AM ^{[1
]}

Ramos, MMD ^{[1
]}

机构：

[1] Univ Minho, Dept Fis, P-4700320 Braga, Portugal

来源：

SYNTHETIC METALS | 2001年 / 122卷 / 01期

关键词：

molecular dynamics; PPV; charge-induced defects; chemical potential;

D O I：

10.1016/S0379-6779(00)01370-9

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We have used self-consistent molecular dynamics calculations with semi-empirical quantum chemistry at the complete neglect of differential overlap (CNDO) level to discuss some of the issues relating to the electronic processes involved in electroluminescence of a particular conjugated polymer: poly(p-phenylene-vinylene) (PPV). Specifically addressed are the effects of chain length and molecular charge on the electronic properties of individual PPV strands, such as chemical potential, charge induced defects and charge rearrangement among the polymer atoms. The effect of high electric fields on charge-induced defects already formed is also discussed. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：165 / 167

页数：3

共 4 条

[1] CONJUGATED POLYMERS AND OLIGOMERS - DESIGNING NOVEL MATERIALS USING A QUANTUM-CHEMICAL APPROACH [J].