Journal
CHINESE SCIENCE BULLETIN
Volume 48, Issue 12, Pages 1198-1200Publisher
SCIENCE CHINA PRESS
DOI: 10.1360/02ww0200
Keywords
cerium dioxide thin film; PL; violet/blue
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CeO2 thin film was fabricated by dual ion beam epitaxial technique. The violet/blue PL at room temperature and lower temperature was observed from the CeO2 thin film. After the analysis of crystal structure and valence in the compound was carried out by the XRD and XPS technique, it was inferred that the origin of CeO2 PL was due to the electrons transition from Ce4f band to O2p band and the defect level to O2p band. And these defects levels were located in the range of 1 eV around Ce4f band.
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