Luminescence Properties of ZnO:Eu³⁺ Red Emitting Phosphor Prepared by Precipitation Method

Abstract:

Zinc oxide doped with Eu³⁺ ions red emitting phosphors were prepared by precipitation method, and its luminescence properties were investigated. The phosphors were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and photoluminescence (PL) spectra. The ZnO:Eu³⁺ phosphors were obtained at 600°C by calcining precipitation precursor. These phosphors can be effectively excited at 465nm. In emission spectra, the strongest peak at 616nm correlating to red emission is due to the electric dipole transition ⁵D₀⁷F₂ of Eu³⁺ ions. Eu³⁺ions replaced Zn²⁺ ions and occupied the non-centrosymmetric sites in the ZnO matrix lattice. The phosphor particles with narrow distribution range are approximately 100-200nm in size. The luminescence properties of ZnO:Eu³⁺ phosphor with 8 mol% doping concentration of Eu³⁺ is optimal.

• Periodical: Advanced Materials Research (Volumes 690-693)
• Pages: 594-597
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.690-693.594
• Online since: May 2013
• Authors: Lin Yan Jia, Zhong Bao Shao, Jun Feng Han
• Keywords: Phosphor, Precipitation, Zinc Oxide (ZnO)

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