Self-organized lateral ordering for vertically aligned PbSe/PbEuTe quantum-dot superlattices

被引：11

作者：

Raab, A ^{[1
]}

Lechner, RT ^{[1
]}

Springholz, G ^{[1
]}

机构：

[1] Johannes Kepler Univ, Inst Halbleiter & Festkorperphys, A-4040 Linz, Austria

来源：

APPLIED PHYSICS LETTERS | 2002年 / 80卷 / 07期

关键词：

D O I：

10.1063/1.1447319

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The growth of vertically aligned self-assembled PbSe/Pb1-xEuxTe quantum-dot superlattices is found to result in a pronounced hexagonal lateral ordering tendency accompanied by a narrowing of the size distribution. In addition, the lateral dot separations and dot densities become tunable by changes in the spacer thickness with an almost twofold density increase for spacer thicknesses increasing from 100 to 275Angstrom. Similar marked changes are also found for PbSe dot sizes and shapes. This could provide additional means for the tuning of the optical and electronic properties of the dots. (C) 2002 American Institute of Physics.

引用

页码：1273 / 1275

页数：3

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