Journal of Synthetic Crystals, Volume. 50, Issue 11, 2081(2021)

Synthesis, Structure and Photoluminescent Properties of Ca1.8Li0.6La0.6-x(PO4)2∶xEu3+ Phosphor with Whitlockite Structure

TANG Wanjuan1、*, GUO Qingfeng1, SU Ke2, MEI Lefu2, and LIAO Libing2
Author Affiliations
  • 1[in Chinese]
  • 2[in Chinese]
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    Whitlockite is an excellent luminescent material. It has lower synthesis temperature and an abundance of adjustable crystal lattice.Ca1.8Li0.6La0.6-x(PO4)2∶xEu3+ (x=0, 0.01, 0.03, 0.06, 0.09, 0.15) was synthesized by high temperature solid state reaction at 1 250 ℃, and its structure and luminescent properties were characterized by X-ray powder diffraction (XRD) and fluorescence spectrometer. The results show that the phosphors belongs to whitlockite structure, and the doping of Eu3+ does not change the structure to a great extent. The phosphor in the system emits red light, and the characteristic emission of Eu3+ appears in the emission spectrum. The strongest emission peak locates at 617 nm and comes from 5D0→7F2 transition of Eu3+. As the concentration of Eu3+ increases, the fluorescence lifetime decreases, which proves the existence of energy transfer between Eu3+.

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    TANG Wanjuan, GUO Qingfeng, SU Ke, MEI Lefu, LIAO Libing. Synthesis, Structure and Photoluminescent Properties of Ca1.8Li0.6La0.6-x(PO4)2∶xEu3+ Phosphor with Whitlockite Structure[J]. Journal of Synthetic Crystals, 2021, 50(11): 2081

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    Paper Information

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    Received: Jul. 23, 2021

    Accepted: --

    Published Online: Feb. 14, 2022

    The Author Email: Wanjuan TANG (695683025@qq.com)

    DOI:

    CSTR:32186.14.

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