Abstract
Eu3+-doped zirconia nanopowders were prepared by the sol-gel technique using two different methods, based on the hydrolysis of zirconium n-propoxide, producing tetragonal and monoclinic zirconia under different preparation conditions. A detailed microstructure characterization was performed through wide angle x-ray scattering, small angle x-ray scattering, trasmission electron microscopy, and nitrogen physisorption measurements. The possible influence of the zirconia crystalline phases and particle sizes on the luminescence properties of the lanthanide ion was investigated. A detailed analysis of the emission spectra of the samples suggested that the dopant Eu3+ ions replace the Zr4+ ions in the zirconia crystal lattice. Moreover, samples prepared by the two different methods were characterized by different decay times of the Eu3+ ion luminescence.
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Speghini, A., Bettinelli, M., Riello, P. et al. Preparation, structural characterization, and luminescence properties of Eu3+-doped nanocrystalline ZrO2. Journal of Materials Research 20, 2780–2791 (2005). https://doi.org/10.1557/JMR.2005.0358
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DOI: https://doi.org/10.1557/JMR.2005.0358