光谱学与光谱分析 |
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Preparation and Luminescence of CeOx/ZnO Nanocomposite Powders |
GUO Shu-xia, ZHANG Xing-tang, ZHAO Hui-ling, LI Yun-cai, HUANG Ya-bin,DU Zu-liang* |
Key Laboratory of Special Functional Materials, Henan University, Kaifeng 475001, China |
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Abstract CeOx/ZnO nanocomposite powders were prepared by sol-gel process. The powder samples were examined by XRD,TEM,XPS and photoluminescence (PL). PL enhancement of nanocomposite powder at 502 nm compared to pure ZnO was observed when Ce3+ were present in samples. New peak at 603 nm was observed when Ce4+ were present. PL enhancement of nanocomposite powder was correlated with more oxygen vacancies which were caused by Ce3+. The new peak at 603 nm is attributed to new energy transition in the interface of CeO2/ZnO.
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Received: 2004-03-26
Accepted: 2004-06-28
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Corresponding Authors:
DU Zu-liang
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Cite this article: |
GUO Shu-xia,ZHANG Xing-tang,ZHAO Hui-ling, et al. Preparation and Luminescence of CeOx/ZnO Nanocomposite Powders [J]. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2005, 25(06): 840-843.
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URL: |
https://www.gpxygpfx.com/EN/Y2005/V25/I06/840 |
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