发明名称 |
Yellow light afterglow material and preparation method thereof as well as LED illuminating device using same |
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. |
申请公布号 |
US9045689(B2) |
申请公布日期 |
2015.06.02 |
申请号 |
US200913497129 |
申请日期 |
2009.11.09 |
申请人 |
SICHUAN SUNFOR LIGHT CO., LTD.;CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY, CHINESE ACADEMY OF SCIENCES |
发明人 |
Zhang Hongjie;Zhang Ming;Li Chengyu;Zhao Kun;Zhang Hao |
分类号 |
C09K11/80;H01L33/00;C09K11/77;H01L33/50 |
主分类号 |
C09K11/80 |
代理机构 |
Andrews Kurth LLP |
代理人 |
Ye Michael;Andrews Kurth LLP |
主权项 |
1. A yellow light afterglow material, comprising the following chemical formula:
aY2O3.bAl2O3.cSiO2:mCe.nB.xNa.yP, wherein 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. |
地址 |
Chendu, Sichuan CN |