Size-tunable infrared (1000-1600 nm) electroluminescence from PbS quantum-dot nanocrystals in a semiconducting polymer

被引：359

作者：

Bakueva, L ^{[1
]}

Musikhin, S

Hines, MA

Chang, TWF

Tzolov, M

Scholes, GD

Sargent, EH

机构：

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

[2] Univ Toronto, Lash Miller Chem Labs, Toronto, ON M5S 3H6, Canada

来源：

APPLIED PHYSICS LETTERS | 2003年 / 82卷 / 17期

关键词：

D O I：

10.1063/1.1570940

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Nanocomposites consisting of PbS nanocrystals in a conjugated polymer matrix were fabricated. We report results of photo- and electroluminescence across the range of 1000 to 1600 nm with tunability obtained via the quantum-size effect. The intensity of electroluminescence reached values corresponding to an internal quantum efficiency up to 1.2%. We discuss the impact of using different-length capping ligands on the transfer of excitations from polymer matrix to nanocrystals. (C) 2003 American Institute of Physics.

引用

页码：2895 / 2897

页数：3

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