Ionic occupation sites, luminescent spectra, energy transfer behaviors in Y3MgAl3SiO12: Ce3+, Mn2+ phosphors for warm white LED
Ionic occupation sites, luminescent spectra, energy transfer behaviors in Y3MgAl3SiO12: Ce3+, Mn2+ phosphors for warm white LED
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暖白光LED用Y3MgAl3SiO12:Ce3、Mn2荧光粉的离子占据位点、发光光谱、能量转移行为
DOI:
10.1016/j.jlumin.2019.116787
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发表时间:
2020
影响因子:
3.6
通讯作者:
Wang Huanping
中科院分区:
文献类型:
--
作者:
Tong Erbao(学);Song Kaixin;Deng Zhonghua;Shen Shaohua;Gao Huifang;Su Weitao;Wang Huanping
Abstract The Ce 3+ and Mn 2+ doped Y 3 MgAl 3 SiO 12 (YMAS) phosphors were synthesized by the high-temperature solid-state reaction in 5% H 2–95% N 2 reduced atmosphere. Rietveld refinement of X-ray diffraction data indicated that 0.08 Ce 3+-yMn 2+ co-doped YMAS phosphors had a garnet type cubic structure with the Ia 3‾ d space group. Ce 3+ occupies the lattice sites of Y 3+. Mn 2+ occupies both lattice sites of MgO 6 octahedron and AlO 4 tetrahedron, emitting optical lights centered at 613 nm (Mn 2+(I)) and 723 nm (Mn 2+(II)), respectively. The orange-yellow light with the range of 450 nm–750nm was obtained by the energy transfer of Ce 3+− Mn 2+ with a maximum value of 69.2% of energy transfer efficiency. The integrated warm white LED produced white light with CRI of 85.4, CCT of 4502 K, and a CIE color coordinate (0.3542, 0.3269). It indicated that the phosphor might be suitable for blue light-excited white LEDs.
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DOI:
10.1007/s10853-017-1162-y
发表时间:
2017
期刊:
Journal of Material Science (2017) 52:10927–10937
影响因子:
--
作者:
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W. Xie;Mo Youwei;C. Zou;Fengwen Kang;Guohuan Sun
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作者:
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通讯作者:
Jingyan Fan;J. Gou;Yali Chen;Binxun Yu;S. Liu
影响因子:
2.8
作者:
Guibin Chen;Jia Zhang
通讯作者:
Guibin Chen;Jia Zhang
DOI:
10.1007/s10854-018-8799-4
发表时间:
2018-02
期刊:
Journal of Materials Science: Materials in Electronics
影响因子:
--
作者:
Yeqiu Wu;T. He
通讯作者:
Yeqiu Wu;T. He