Enhanced spontaneous emission in a photonic-crystal light-emitting diode

被引：40

作者：

Francardi, M. ^{[1
]}

Balet, L. ^{[2
,3
]}

Gerardino, A. ^{[1
]}

Chauvin, N. ^{[2
]}

Bitauld, D. ^{[2
]}

Li, L. H. ^{[3
]}

Alloing, B. ^{[3
]}

Fiore, A. ^{[2
]}

机构：

[1] CNR, Inst Photon & Nanotechnol, I-00156 Rome, Italy

[2] Eindhoven Univ Technol, COBRA Res Inst, NL-5600 MB Eindhoven, Netherlands

[3] Ecole Polytech Fed Lausanne, Inst Photon & Quantum Elect, CH-1015 Lausanne, Switzerland

来源：

APPLIED PHYSICS LETTERS | 2008年 / 93卷 / 14期

基金：

瑞士国家科学基金会;

关键词：

D O I：

10.1063/1.2964186

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report direct evidence of enhanced spontaneous emission in a photonic-crystal (PhC) light-emitting diode. The device consists of p-i-n heterojunction embedded in a suspended membrane, comprising a layer of self-assembled quantum dots. Current is injected laterally from the periphery to the center of the PhC. A well-isolated emission peak at 1.3 mu m from the PhC cavity mode is observed, and the enhancement of the spontaneous emission rate is clearly evidenced by time-resolved electroluminescence measurements, showing that our diode switches off in a time shorter than the bulk radiative and nonradiative lifetimes. (C) 2008 American Institute of Physics.

引用

页数：3

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