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  • Title: [Preparation and luminescence of CeOx/ZnO nanocomposite powders].
    Author: Guo SX, Zhang XT, Zhao HL, Li YC, Huang YB, Du ZL.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2005 Jun; 25(6):840-3. PubMed ID: 16201353.
    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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