Hydrothermal Synthesis and Characterization of CeO2:Eu3+ Nanopowders

Abstract:

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CeO2 :Eu3+ powders(6mol%) were successfully prepared via the precursor,which were synthesizedby a hydrothermal method.The precursor was calcined from 500 to 800°C and CeO2:Eu3+ powders were obtained.XRD analysis showed that the powders with pure cubic fluorite-type CeO2 phase was obtained at the calcination temperatures from 500 to 800°C.TG analysis showed the precursor is no weight loss when the calcination temperature is higher than 500°C. SEM indicated CeO2:Eu3+ powders were polygonal crystal.The PL measurements indicated the dependence of PL emission intensity on the calcination temperature.The excitation spectra of the CeO2:Eu3+ powders were dominated by a broad band at 300-390 nm,suggesting the efficient energy transfer from the O2-_Ce4+ charge-transfer state to the doping Eu3+ in the CeO2:Eu3+ powders. The CeO2:Eu3+ powders with a 6at.% concentration of Eu sintered at 800°C revealed the strongest photoluminescence .

Info:

Periodical:

Advanced Materials Research (Volumes 79-82)

Edited by:

Yansheng Yin and Xin Wang

Pages:

597-600

DOI:

10.4028/www.scientific.net/AMR.79-82.597

Citation:

M. Zhou et al., "Hydrothermal Synthesis and Characterization of CeO2:Eu3+ Nanopowders", Advanced Materials Research, Vols. 79-82, pp. 597-600, 2009

Online since:

August 2009

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Price:

$35.00

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