Abstract
In this study, the effect of YF3 as a flux addition on the mechanical processing low temperature synthesis of Ce3+-doped Y3Al5O12 (YAG:Ce3+) phosphors for white light emitting diodes of next generation lighting was investigated. The YAG phosphors were synthesized by the mechanical method using an attrition-type mill without any extra-heat assistance. When YF3 was added at 10 mass% to the raw powder materials and 10 min processed, the synthesis of YAG:Ce3+ was favorably achieved at the vessel temperature of 230 °C. The internal quantum yield of YAG:Ce3+ phosphor was evaluated by a quantum yield measurement device. The synthesized YAG:Ce3+ phosphor revealed the maximum internal quantum yield of 55%.
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