Yellow light afterglow material and preparation method thereof as well as LED illuminating device using same

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United States of America Patent

PATENT NO 9695359
APP PUB NO 20150232753A1
SERIAL NO

14700723

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Abstract

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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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Patent Owner(s)

Patent OwnerAddress
CHANGCHUN INSTITUTE OF APPLIED CHEMISTRY CHINESE ACADEMY OF SCIENCESCHANGCHUN JILIN 130022
SICHUAN SUNFOR LIGHT CO LTDNO 15-2 XIXIN AVENUE HIGH TECH ZONE CHENGDU CITY SICHUAN PROVINCE 610000 CHENGDU CITY SICHUAN PROVINCE 610000

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Li, Chengyu Jilin, CN 18 36
Zhang, Hao Sichuan, CN 1170 5565
Zhang, Hongjie Jilin, CN 49 86
Zhang, Ming Sichuan, CN 891 7236
Zhao, Kun Sichuan, CN 231 894

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