Quantum confinement effect in ZnO/Mg0.2Zn0.8O multishell nanorod heterostructures

Eue Soon Jang; Jun Young Bae; Jinkyoung Yoo; Won Il Park; Dong Wook Kim; Gyu Chul Yi; T. Yatsui; M. Ohtsu

doi:10.1063/1.2162695

Quantum confinement effect in ZnO/Mg_0.2Zn_0.8O multishell nanorod heterostructures

Eue Soon Jang, Jun Young Bae, Jinkyoung Yoo, Won Il Park, Dong Wook Kim, Gyu Chul Yi, T. Yatsui, M. Ohtsu

Department of Physics

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

We report on photoluminescence measurements of Mg0.2 Zn0.8 OZnO Mg0.2 Zn0. 8 O multishell layers on ZnO core nanorods. Dominant excitonic emissions in the photoluminescence spectra show a blueshift depending on the ZnO shell layer thickness attributed to the quantum confinement effect in the nanorod heterostructure radial direction. Furthermore, near-field scanning optical microscopy clearly shows sharp photoluminescence peaks from the individual nanorod quantum structures, corresponding to subband levels.

Original language	English
Article number	023102
Pages (from-to)	1-3
Number of pages	3
Journal	Applied Physics Letters
Volume	88
Issue number	2
DOIs	https://doi.org/10.1063/1.2162695
State	Published - 2006

Bibliographical note

Funding Information:
This work was financially supported through the National Creative Research Initiative Project by the KOSEF and the Air Force Office of Scientific Research (FA5209-04-P-0325), USA.

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10.1063/1.2162695

Cite this

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title = "Quantum confinement effect in ZnO/Mg0.2Zn0.8O multishell nanorod heterostructures",

abstract = "We report on photoluminescence measurements of Mg0.2 Zn0.8 OZnO Mg0.2 Zn0. 8 O multishell layers on ZnO core nanorods. Dominant excitonic emissions in the photoluminescence spectra show a blueshift depending on the ZnO shell layer thickness attributed to the quantum confinement effect in the nanorod heterostructure radial direction. Furthermore, near-field scanning optical microscopy clearly shows sharp photoluminescence peaks from the individual nanorod quantum structures, corresponding to subband levels.",

author = "Jang, {Eue Soon} and Bae, {Jun Young} and Jinkyoung Yoo and Park, {Won Il} and Kim, {Dong Wook} and Yi, {Gyu Chul} and T. Yatsui and M. Ohtsu",

note = "Funding Information: This work was financially supported through the National Creative Research Initiative Project by the KOSEF and the Air Force Office of Scientific Research (FA5209-04-P-0325), USA.",

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language = "English",

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journal = "Applied Physics Letters",

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T1 - Quantum confinement effect in ZnO/Mg0.2Zn0.8O multishell nanorod heterostructures

AU - Jang, Eue Soon

AU - Bae, Jun Young

AU - Yoo, Jinkyoung

AU - Park, Won Il

AU - Kim, Dong Wook

AU - Yi, Gyu Chul

AU - Yatsui, T.

AU - Ohtsu, M.

N1 - Funding Information: This work was financially supported through the National Creative Research Initiative Project by the KOSEF and the Air Force Office of Scientific Research (FA5209-04-P-0325), USA.

PY - 2006

Y1 - 2006

N2 - We report on photoluminescence measurements of Mg0.2 Zn0.8 OZnO Mg0.2 Zn0. 8 O multishell layers on ZnO core nanorods. Dominant excitonic emissions in the photoluminescence spectra show a blueshift depending on the ZnO shell layer thickness attributed to the quantum confinement effect in the nanorod heterostructure radial direction. Furthermore, near-field scanning optical microscopy clearly shows sharp photoluminescence peaks from the individual nanorod quantum structures, corresponding to subband levels.

AB - We report on photoluminescence measurements of Mg0.2 Zn0.8 OZnO Mg0.2 Zn0. 8 O multishell layers on ZnO core nanorods. Dominant excitonic emissions in the photoluminescence spectra show a blueshift depending on the ZnO shell layer thickness attributed to the quantum confinement effect in the nanorod heterostructure radial direction. Furthermore, near-field scanning optical microscopy clearly shows sharp photoluminescence peaks from the individual nanorod quantum structures, corresponding to subband levels.

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