[Preparation and luminescence of CeOx/ZnO nanocomposite powders].
Guang Pu Xue Yu Guang Pu Fen Xi
; 25(6): 840-3, 2005 Jun.
Article
en Zh
| MEDLINE
| ID: mdl-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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Banco de datos:
MEDLINE
Asunto principal:
Óxido de Zinc
/
Cerio
/
Luminiscencia
/
Nanocompuestos
Idioma:
Zh
Año:
2005
Tipo del documento:
Article