Formation and photoluminescent properties of embedded ZnO quantum dots in ZnO/ZnMgO multiple-quantum-well-structured nanorods

被引：21

作者：

Kim, Chinkyo

Park, Won Il

Yi, Gyu-Chul ^{[1
]}

Kim, Miyoung

机构：

[1] Pohang Univ Sci & Technol, POSTECH, Natl CRI Ctr Semicond Nanorods, Pohang 790784, South Korea

[2] Pohang Univ Sci & Technol, POSTECH, Dept Mat Sci & Engn, Pohang 790784, South Korea

[3] Kyung Hee Univ, Dept Phys, Seoul 130701, South Korea

[4] Kyung Hee Univ, Res Inst Basic Sci, Seoul 130701, South Korea

[5] Seoul Natl Univ, Sch Mat Sci & Engn, Seoul 151744, South Korea

来源：

APPLIED PHYSICS LETTERS | 2006年 / 89卷 / 11期

关键词：

D O I：

10.1063/1.2352724

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

ZnO/Zn0.8Mg0.2O multiple-quantum-well (MQW) nanorods with a different number of periods and well widths were grown by catalyst-free metal-organic vapor phase epitaxy. Their optical and structural characteristics were investigated using photoluminescence, transmission electron microscopy, and field emission scanning electron microscopy. Unlike ZnO/ZnMgO MQW thin films, it was observed that embedded quantum dots played a more important role in the optical characteristics of ZnO/ZnMgO MQW nanorods than quantum confined Stark effect due to polarization field. (c) 2006 American Institute of Physics.

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