Luminescence Properties of Eu²⁺ Doped Ba₃La(PO₄)₃ Phosphor

Abstract:

Eu²⁺-doped Ba₃La (PO₄)₃ phosphors were synthesized by solid-state reaction method. The X-ray diffraction (XRD) results showed that the obtained phosphors were cubic phase. The structure of Ba₃La (PO₄)₃ doped slight Eu²⁺ does not changed. Ba₃La_1-x(PO₄)₃:xEu²⁺ phosphor can be excited by UV-visible light, which emits intensely blue light with broadband peaked at about 466 nm. The relative PL intensity increases with Eu²⁺-concentration increasing until a maximum intensity is reached, at about x=0.015mol. According to the Dexters theory, it was found that the major mechanism for concentration quenching as a result of dipole-dipole (d-d) interaction.

• Periodical: Advanced Materials Research (Volume 815)
• Pages: 535-539
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.815.535
• Online since: October 2013
• Authors: Ji You Wang, Jian Bo Wang, Hong Mei Liu, Ping Duan
• Keywords: Europium (Eu), High-Temperature Solid-State Reaction, Luminescence, Phosphate, Rare Earth

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