Influence of nanocrystals on the energy levels and luminescent properties of the polymer matrix in conjugated polymer-dielectric nanocomposites

被引：10

作者：

Bakueva, L ^{[1
]}

Musikhin, S ^{[1
]}

Sargent, EH ^{[1
]}

Shik, A ^{[1
]}

机构：

[1] Univ Toronto, Dept Elect & Comp Engn, Toronto, ON M5S 3G4, Canada

来源：

SURFACE SCIENCE | 2003年 / 532卷

关键词：

photoluminescence; electroluminescence; aluminum oxide; zinc oxide; semiconducting films;

D O I：

10.1016/S0039-6028(03)00230-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report results of experimental investigations into the luminescent properties of conjugated polymers in which are embedded dielectric nanocrystals. In poly(p-phenylene vinylene), embedding nanocrystals results in a blue shift and broadening of luminescence spectra with a simultaneous disappearance of its vibronic structure. The same nanocrystals in poly(2-(6-cyano-6'-methylheptyloxy)-1,4-phenylene) cause a red shift and spectral broadening. The results are explained with reference to a model accounting for the change in the polarization component of carrier and exciton energy in the vicinity of nanocrystals. The polymer-dielectric nanocomposites demonstrated increased electroluminescence effectiveness compared with pure polymers. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：1051 / 1055

页数：5

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