Microcavity light-emitting devices based on colloidal semiconductor nanocrystal quantum dots

被引：22

作者：

Xu, J

Cui, DH

Lewis, BA

Wang, AY

Xu, SY

Gerhold, M

机构：

[1] Penn State Univ, Dept Engn Sci & Mech, University Pk, PA 16802 USA

[2] Penn State Univ, Dept Chem, University Pk, PA 16802 USA

[3] NN Labs, Fayetteville, AR 72702 USA

[4] Penn State Univ, Dept Phys, University Pk, PA 16802 USA

[5] N Carolina State Univ, Dept Elect Engn, Raleigh, NC 27695 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2005年 / 17卷 / 10期

基金：

美国国家科学基金会;

关键词：

electroluminescent devices; light sources; nanotechnology; optoelectronic devices; quantum dots;

D O I：

10.1109/LPT.2005.856398

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter describes the design, fabrication, and characterization of a microcavity-electroluminesence (EL) device based on colloidal semiconductor nanocrystal quantum dots (NQDs). The device was fabricated by sandwiching a solution-cast film of light-emitting CdSe-CdS core-shell NQDs between two metal mirrors to form a resonant microcavity structure. We have observed a significant reduction in EL emission bandwidth from the fabricated device. Further improvement of the emission efficiency of the NQD-microcavity-EL devices can be achieved upon the minimization of the losses that are pertinent to metal mirrors.

引用

页码：2008 / 2010

页数：3

共 22 条

[1] Size-tunable infrared (1000-1600 nm) electroluminescence from PbS quantum-dot nanocrystals in a semiconducting polymer [J].