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Updated: May 18, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
Tunable luminescence Y₃Al₅O₁₂:0.06Ce³⁺, xMn²⁺ phosphors with different charge compensators for warm white light
Yurong Shi1, Yuhua Wang, Yan Wen
1Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China.
Abstract:
Y₃Al₅O₁₂:0.06Ce³⁺, xMn²⁺ (YAG:0.06Ce,xMn) phosphors have been synthesized and the effect of different charge compensators on the color adjustment has been investigated for the first time. The luminescence properties of Mn2+ singly doped and co-doped with Ce3+ into YAG host have been discussed. It is observed that in singly doped sample, Mn2+ ions not only occupy two kinds of Al3+ sites to generate a yellow and a deep red emission bands, but also occupy Y3+ sites to obtain a green emission band in YAG host. Considering Mn2+ substitution for Al3+, quadrivalence ions including Zr4+, Ge4+ and Si4+ ions are introduced to balance the charge difference. The results show that Si4+ as charge compensator exhibits the best tunable effect on controlling the Mn2+ emissions in YAG:0.06Ce, xMn. In Si4+-Mn2+ co-doped samples, the emission color can be tuned from greenish-yellow to red with increasing the content of Mn2+. The Commission International de L’Eclairage (CIE) chromaticity coordinates are also investigated.
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