Semi-Quantitative Estimation of Ce3+/Ce4+ Ratio in YAG:Ce3+ Phosphor under Different Sintering Atmosphere


In order to confirm the relationship between the luminescence and the ratio of Ce3+/Ce4+ more clearly, a series of YAG:Ce3+ (Yttrium Aluminum Garnet, Y2.94Al5O12:0.06Ce3+) phosphors were pre- pared under different sintering atmosphere. A semi-quantitative analysis based on X-ray photoe-lectron spectroscopy (XPS) was introduced to study the mole ratio of Ce3+/Ce4+ in the as-synthesized YAG:Ce3+ phosphors. The results indicated that the percentage of Ce3+/(Ce3+ + Ce4+) reached 88.46% under the reduction atmosphere. The emission intensity of YAG:Ce3+ phosphors was in-creased significantly with the increasing of Ce3+ concentration.

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Wang, L. , Zhuang, L. , Xin, H. , Huang, Y. and Wang, D. (2015) Semi-Quantitative Estimation of Ce3+/Ce4+ Ratio in YAG:Ce3+ Phosphor under Different Sintering Atmosphere. Open Journal of Inorganic Chemistry, 5, 12-18. doi: 10.4236/ojic.2015.51003.

Conflicts of Interest

The authors declare no conflicts of interest.


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