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

Chinkyo Kim, Won Park, Gyu Chul Yi, Miyoung Kim

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26 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number113106
JournalApplied Physics Letters
Volume89
Issue number11
DOIs
Publication statusPublished - 2006

Bibliographical note

Funding Information:
The work at POSTECH was supported by the National Creative Research Initiative Project of the Korean Ministry of Science and Technology.

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