Tunable luminescence and energy transfer in Y2BaAl4SiO12:Tb3+,Eu3+phosphors for solid-state lighting

• 作者: Jie Wang Xiusha Peng Danzhao Cheng Zhigang Zheng Hai Guo
• 来源期刊: 稀土学报（英文版）
• 年，卷（期）: 2021,（3）
• 所属期刊栏目: SPECTROSCOPY,LUMINESCENCE AND PHOSPHORS
• 页码范围: 284-290
• 页数: 7页
• 语种: 英文

摘要

Single-phase Y2BaAl4SiO12:Tb3+,Eu3+ phosphors with adjustable luminescence were successfully pre-pared by high-temperature solid-state reaction method. The structural, luminescent properties and energy transfer (ET) process of Y2BaAl4SiO12:Tb3+,Eu3+phosphors were systematically analyzed with the help of X-ray diffraction (XRD), scanning electron microscopy (SEM), excitation spectra, emission spectra and photoluminescence decay curves. Tunable luminescence ranging from green through yellow and definitively to red can be achieved by elevating amounts of Eu3+ ions in Tb3+,Eu3+ co-doped samples. Besides, the ET mechanism and efficiency were also analyzed and the maximum ET efficiency is 67％. All the results show that Y2BaAl4SiO12:Tb3+,Eu3+phosphors can be used in solid-state lighting.