S-Space College of Natural Sciences (자연과학대학) Dept. of Physics and Astronomy (물리·천문학부) Physics (물리학전공) Journal Papers (저널논문_물리학전공)
Quantum confinement effect in ZnO/Mg0.2Zn0.8O multishell nanorod heterostructures
- Jang, Eue-Soon; Bae, Jun Young; Yoo, Jinkyoung; Park, Won Il; Kim, Dong-Wook; Yi, Gyu-Chul; Yatsui, T.; Ohtsu, M.
- Issue Date
- American Institute of Physics
- Appl. Phys. Lett. 88, 023102 (2006)
- We report on photoluminescence measurements of Mg0.2Zn0.8O/ZnO/Mg0.2Zn0.8O 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.
- 0003-6951 (print)
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