Ba9Lu2Si6O24:Eu3+红色荧光粉的制备及其在白光LED上的应用

doi:10.3964/j.issn.1000-0593(2025)05-1455-07

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摘要：近紫外芯片和红绿蓝三基色荧光粉组装的白光发光二极管（NUV-WLED）能有效缓解“蓝光危害”和提升显色指数。通过高温固相法制备得到Ba₉Lu₂Si₆O₂₄:xEu³⁺（0≤x≤0.15）红色荧光粉，利用X射线粉末衍射仪、扫描电子显微镜、光谱仪等对样品的物相结构、微观形貌和发光性能进行研究，并分析Eu³⁺掺杂量对发光性能的影响。Eu³⁺成功掺杂进入Ba₉Lu₂Si₆O₂₄基体中，样品主激发峰为393 nm（⁷F₀→⁵L₆），主发射峰为612 nm（⁵D₀→⁷F₂），x=0.09时发光强度最大。将Ba₉Lu₂Si₆O₂₄:xEu³⁺红色荧光粉制成白光LED器件，显色指数接近90并表现出稳定的白光发射。该研究报道的Ba₉Lu₂Si₆O₂₄:xEu³⁺红色荧光粉在紫外LED芯片驱动的白光发光二极管照明上有着潜在应用价值。

关键词：Ba₉Lu₂Si₆O₂₄:xEu³⁺；高温固相法；白光发光二极管

Abstract：The white light-emitting diode (NUV-WLED) assembled by the near-ultraviolet chip and the red-green-blue phosphor can effectively alleviate the “blue light hazard” and improve the color rendering index. In this study, Ba₉Lu₂Si₆O₂₄:xEu³⁺(0≤x≤0.15) red phosphors were prepared by high-temperature solid-state method, and the phase structure, micromorphology and luminescence properties of the samples were studied by X-ray powder diffraction, scanning electron microscope and spectrometer, and the effect of Eu³⁺ doping on the luminescence properties was analyzed. Eu³⁺ was successfully doped into the Ba₉Lu₂Si₆O₂₄ matrix, and the central excitation peak of the sample was 393 nm (⁷F₀→⁵L₆), the central emission peak was 612 nm (⁵D₀→⁷F₂), and the luminous intensity was the highest when x=0.09. The white LED device was fabricated from Ba₉Lu₂Si₆O₂₄:xEu³⁺ red phosphor, and the color rendering index was close to 90 and showed stable white light emission. The Ba₉Lu₂Si₆O₂₄:xEu³⁺ red phosphor reported in this study has potential application value in white light-emitting diode illumination driven by UV LED chips.

Key words：Ba₉Lu₂Si₆O₂₄:xEu³⁺; High-temperature solid-state method; White light-emitting diode

收稿日期: 2024-08-07 修订日期: 2024-12-01

中图分类号:

TN312.8

基金资助: 国家自然科学基金项目(51474170)，西安市科技计划项目(GXYD9.2)资助

通讯作者: 李兆，吴坤尧 E-mail: pylizhao@163.com; 409181898@qq.com

作者简介: 王云正，2001年生，西安工业大学材料与化工学院硕士研究生 e-mail: WangYunxieR@163.com

引用本文:

王云正，吉鸿波，李兆，吴坤尧，王亚楠. Ba₉Lu₂Si₆O₂₄:Eu³⁺红色荧光粉的制备及其在白光LED上的应用[J]. 光谱学与光谱分析, 2025, 45(05): 1455-1461.
WANG Yun-zheng, JI Hong-bo, LI Zhao, WU Kun-yao, WANG Ya-nan. Preparation of Ba₉Lu₂Si₆O₂₄:Eu³⁺Red Phosphor and Its Application in White Light-Emitting Diode. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2025, 45(05): 1455-1461.

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