| 1 | Tunable luminescence and energy transfer in Y_(2)BaAl_(4)SiO_(12):Tb^(3+),Eu^(3+)phosphors for solid-state lighting显示文摘Single-phase Y_(2)BaAl_(4)SiO_(12):Tb^(3+),Eu^(3+)phosphors with adjustable luminescence were successfully prepared by high-temperature solid-state reaction method.The structural,luminescent properties and ene rgy transfer(ET) process of Y_(2)BaAl_(4)SiO_(12):Tb^(^(3+)),Eu^(3+)phosphors were syste matically 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 Eu^(3+)ions in Tb^(3+),Eu^(3+)co-doped samples.Besides,the ET mechanism and efficiency were also analyzed and the maximum ET efficiency is 67%.All the results show that Y_(2)BaAl_(4)SiO_(12):Tb^(3+),Eu^(3+)phosphors can be used in solid-state lighting. | Jie Wang Xiusha Peng Danzhao Cheng Zhigang Zheng Hai Guo | 2021 | Journal of Rare Earths2021，39，3： | 3 |
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