| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5369853 | Applied Surface Science | 2007 | 5 Pages |
Abstract
Effect of annealing temperature on luminescence of Eu3+ ions was studied in nanocrystal zirconia prepared by co-precipitation. The XRDs reveal with annealing temperature increasing the tetragonal crystal phase of the samples is stable. The emission spectra show the strong emission at 595 and 604Â nm at 394Â nm excitation. Under continuous UV (394Â nm) irradiation the 604Â nm emission intensity changes of the samples show as a function of irradiation time. In addition, the charge-transfer states of the samples are affected by the annealing temperature. These are associated with the defects at/in the surface of the nanocrystalline ZrO2 with Eu3+ ions.
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Authors
Liu Huangqing, Wang Lingling, Chen Shuguang, Zou Bingsuo, Peng Zhiwei,