Sc2O3:Ce nanocrystals: Fluorescence and its dependence on the surrounding gas pressure |
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Authors: | SP Feofilov DV Arsentyev AB Kulinkin RI Zakharchenya |
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Institution: | A.F. Ioffe Physical-Technical Institute, St. Petersburg 194021, Russia |
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Abstract: | The fluorescence spectra of nanocrystalline powder samples of Sc2O3:Ce3+ prepared by the sol-gel process were studied. The strong shift of the fluorescence spectra with the excitation wavelength was observed. The effect of the surrounding gaseous medium on 4f05d1→4f1 fluorescence of Ce3+ ions in nanoparticles, discovered earlier in YAG:Ce3+, was also observed and studied in Sc2O3:Ce3+. The fluorescence intensity and the excitation power dependence of fluorescence dramatically depend on the pressure of the gaseous media. |
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Keywords: | Dielectric nanocrystals Rare earth ions Luminescence |
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