专利详情

专利名称	YELLOW-LIGHT AFTERGLOW MATERIAL, MANUFACTURING METHOD THEREOF AND LED LUMINESCENCE DEVICE USING THE SAME
申请号	EP20140189845	专利类型	EP
公开（公告）号	EP2835409(B1)	公开（授权）日	2016.08.17
申请（专利权）人	中国科学院长春应用化学研究所	发明（设计）人	ZHANG, HONGJIE;ZHANG, MING;LI, CHENGYU;ZHAO, KUN;ZHANG, HAO
主分类号	C09K11/80	IPC主分类号	C09K11/80;H01L33/50
专利有效期	YELLOW-LIGHT AFTERGLOW MATERIAL, MANUFACTURING METHOD THEREOF AND LED LUMINESCENCE DEVICE USING THE SAME 至YELLOW-LIGHT AFTERGLOW MATERIAL, MANUFACTURING METHOD THEREOF AND LED LUMINESCENCE DEVICE USING THE SAME	法律状态
说明书摘要	The invention relates to a yellow light afterglow material and a preparation method thereof as well as an LED illuminating device using the same. The yellow light afterglow material comprises the chemical formula of aY 2 O 3 €?bAl 2 O 3 €?cSiO 2 :mCe€?nB€?xNa€?yP, where a, b, c, m, n, x and y are coefficients, and a is not less than 1 but not more than 2, b is not less than 2 but not more than 3, c is not less than 0.001 but not more than 1, m is not less than 0.0001 but not more than 0.6, n is not less than 0.0001 but not more than 0.5, x is not less than 0.0001 but not more than 0.2, and y is not less than 0.0001 but not more than 0.5; wherein Y, Al and Si are substrate elements, and Ce, B, Na and P are activators. The yellow light afterglow material is prepared by the following steps: weighing oxides of elements or materials which can generate oxides at high temperature by molar ratio as raw materials, evenly mixing and then sintering the raw materials at 1200 - 1700 °C in a reducing atmosphere.