Aluminum deficient α-SiAlON phosphors, method of preparing the same, and LED chip package using th

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The present disclosure provides α-SiAlON phosphors, a method of preparing the same, and an LED chip package using the same. The method includes weighing and mixing raw materials of Ca0.8-xRexAlaySi12-yO1.2N14.8 (Re is a rare-earth element, 0≦x≦0.2, 2.6≦y≦3.0, and 0.6≦a≦0.95), and sintering the mixed raw materials via normal pressure sintering to prepare phosphors having a composition of Ca0.8-xRexAlaySi12-yO1.2N14.8.