The energy level spacing between the ground and first excited states in InAs/GaAs quantum dots as a measure of the zero dimensionality

被引：10

作者：

Lee, UH

Jang, YD

Lee, H

Lee, D ^{[1
]}

Kim, JS

Leem, JY

Noh, SK

机构：

[1] Chungnam Natl Univ, Dept Phys, Taejon 305764, South Korea

[2] Korea Adv Inst Sci & Technol, Taejon 305701, South Korea

[3] Korea Res Inst Standards & Sci, Quantum Dot Technol Lab, Taejon 305350, South Korea

[4] Kwangju Inst Sci & Technol, Kwangju, South Korea

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2003年 / 17卷 / 1-4期

关键词：

quantum dot; energy level spacing; zero dimensionality; photoluminescence;

D O I：

10.1016/S1386-9477(02)00746-4

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We suggest a figure of merit for the zero dimensionality, which is the most important property in quantum dots (QD). QD samples emitting at longer wavelengths are turned out to have the larger energy level spacings between the ground and first excited states. The QDs have the stronger quantum effect likely due to the taller height and are closer to an ideal zero-dimensional system. (C) 2002 Elsevier Science B.V. All rights reserved.

引用

页码：129 / 130

页数：2