Electroluminescence from surface oxidized silicon nanoparticles dispersed within a polymer matrix

被引：36

作者：

Ligman, Rebekah K.

Mangolini, Lorenzo

Kortshagen, Uwe R.

Campbell, Stephen A.

机构：

[1] Univ Minnesota, Dept Elect & Comp Engn, Minneapolis, MN 55455 USA

[2] Univ Minnesota, Dept Mech Engn, Minneapolis, MN 55455 USA

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 06期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2471662

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work electrically induced light emission from crystalline silicon nanoparticles randomly dispersed within a polymer matrix was obtained. The observed polymer/silicon nanoparticle device electroluminescence (EL) was composed of simultaneous emission from the polymer and the silicon nanoparticles. The device emission was nonscalar and shifted from a polymer to a silicon nanoparticle dominant emission with increased current density. The device JV characteristics were bulk dominated independent of the nanoparticle loading. The nonscalar field dependence and bulk dominated carrier transport properties strongly suggest that the observed silicon nanoparticle emission was produced by an EL energy transfer process.

引用

页数：3

共 26 条

[1] Electrical characterization of electroluminescent polymer nanoparticle composite devices [J].