Study on Y₃Al₅O₁₂:Eu³⁺ Phosphor Coated by Bi₂O₃

Abstract:

In this work, Y₃Al₅O₁₂:Eu³⁺ phosphors were coated with Bi₂O₃ by the coprecipitation method. The crystal structure and surface morphology were characterized by XRD, Zeta potential and IR, respectively. The results showed that the surface of Y₃Al₅O₁₂:Eu³⁺ phosphors were evenly coated with Bi₂O₃ by the electrostatic attraction, i.e. after surface treatment, the crystal structure of Y₃Al₅O₁₂:Eu³⁺ phosphors remained the same as that of the uncoated samples. The results demonstrated that the luminous intensity of coated Y₃Al₅O₁₂:Eu³⁺ phosphors with 5wt% Bi₂O₃ attained the maximun value, increasing to 1.17 times that of uncoated Y₃Al₅O₁₂:Eu³⁺ phosphors.

• Periodical: Advanced Materials Research (Volumes 652-654)
• Pages: 634-637
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.652-654.634
• Online since: January 2013
• Authors: Xia Zhang, Sai Wang, Bao Xiang Jiao, Xu Wang
• Keywords: Bi₂O₃, Luminescence Property, Phosphor, Surface Coating, Y₃Al₅O₁₂:Eu³⁺

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