Exciton binding energy in poly(phenylene vinylene)

被引：29

作者：

Moses, D ^{[1
]}

Wang, J

Heeger, AJ

Kirova, N

Brazovski, S

机构：

[1] Univ Calif Santa Barbara, Inst Polymers & Organ Solids, Santa Barbara, CA 93103 USA

[2] Univ Paris 11, LPTMS, F-91405 Orsay, France

来源：

SYNTHETIC METALS | 2001年 / 125卷 / 01期

基金：

美国国家科学基金会;

关键词：

poly(phenylene vinylene); conjugated polymers; exciton binding energy;

D O I：

10.1016/S0379-6779(01)00515-X

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The exciton binding energy (Eb) and the band gap energy (Eg) of poly(phenylene vinylene) (PPV) have been determined by photoconductivity excitation profile spectroscopy as a function of light polarization, applied electric field, and temperature. The exciton binding energy, E-b approximate to 60 meV, is obtained from the energy of the exciton peak relative to the band edge, and independently from analysis of the dependence of the exciton dissociation on field and temperature. (C) 2001 Elsevier Science B.V. All rights reserved.

引用

页码：93 / 98

页数：6

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