3 years ago

Improvement the luminescent property of Y3Al5O12:Ce3+ by adding the different fluxing agents for white LEDs

Chunjing Tao, Panlai Li, Nan Zhang, Zhiping Yang, Zhijun Wang

Publication date: February 2019

Source: Optik, Volume 179

Author(s): Chunjing Tao, Panlai Li, Nan Zhang, Zhiping Yang, Zhijun Wang

Abstract

Generally, the synthesis of phosphors can be influenced by the addition of fluxing agents, and a good fluxing agent should be beneficial for the synthesis condition of phosphors. In order to explore the suitable fluxing agents for Y3Al5O12:Ce3+ (YAG:Ce3+), which were synthesized using different fluxing agents, and the properties were characterized in detail via X-ray diffraction, spectral characteristics, quantum efficiency and scanning electron microscopy. The results show that the luminescence properties and particle morphology of YAG:Ce3+ were improved by adding fluxing agents. For example, the oxide fluxing agents have an obvious effect on the uniform distribution of particles, the chloride fluxing agents can reduce the synthesis temperature of YAG:Ce3+, and the fluoride fluxing agents increase the crystallinity and brightness of YAG:Ce3+.

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