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公开(公告)号：US20150267111A1
公开(公告)日：2015-09-24
申请号：US14700880
申请日：2015-04-30
申请人： SICHUAN SUNFOR LIGHT CO., LTD. , CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES
发明人： HONGJIE ZHANG , Ming Zhang , Chengyu Li , Kun Zhao , Hao Zhang
IPC分类号： C09K11/77
CPC分类号： C09K11/7774 , H01L25/0753 , H01L33/502
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 aY2O3.bAl2O3.cSiO2: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° in a reducing atmosphere.
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公开(公告)号：US20200035926A1
公开(公告)日：2020-01-30
申请号：US16477282
申请日：2017-08-18
发明人： LIANG ZHOU , HONGJIE ZHANG , XUESEN ZHAO
摘要： The present disclosure provides a blue organic electroluminescent device comprising: a substrate; an anode layer disposed on the substrate; a light emitting layer disposed on the anode layer, the light emitting layer being formed from a blue organic fluorescent material and a hole-type organic host material, wherein the blue organic fluorescent material is 8.0% to 25.0% by mass of the hole-type organic host material; and a cathode layer disposed on the light emitting layer.
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