Vibronic Fine Structures on the {\sim}3.0 eV Violet Emission in Ion-Implanted ZnO Nanorods
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概要
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Unusual vibronic fine structures of the {\sim}3.0 eV violet emission from ion-implanted ZnO nanorods have been investigated by photoluminescence (PL). A set of equally separated peaks with energy spacing of 72 meV, which corresponds to the longitudinal optical (LO) phonon energy of ZnO, were well resolved in the low-temperature PL spectra. The overall emission band can be perfectly described on the basis of the LO phonon-assisted transition with the Huang--Rhys factor of 1.98, indicating intermediate electron-phonon coupling. The thermal quenching of PL gives rise to an activation energy of {\sim}160 meV, which is attributed to the energy level of acceptor-like defects introduced by implantation.
- 2012-11-25
著者
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PAN Xinhua
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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YE Zhizhen
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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HE Haiping
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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LIU Huibin
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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LI Shuili
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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WU Kewei
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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HUANG Jingyun
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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LU Yangfan
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University
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Li Shuili
State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China
関連論文
- Vibronic Fine Structures on the {\sim}3.0 eV Violet Emission in Ion-Implanted ZnO Nanorods
- Vibronic Fine Structures on the -3.0eV Violet Emission in Ion-Implanted ZnO Nanorods