Rare earth oxysulfide luminescent material and preparation method therefor

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United States of America Patent

PATENT NO 9650562
SERIAL NO

14439010

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Abstract

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Provided is an oxysulfide luminescent material. The luminescent material has a general chemical formula of Ln2−xO2S:Eux3+@My, wherein@ is coating, Eu is doped in Ln2−xO2S, Ln2−xO2S:Eux3+has a porous structure, and M is located in pores of the Ln2−xO2S:Eux3+. In the oxysulfide luminescent material, metal nano particles coating is used to form a core-shell structure, which increases luminescent efficiency of the oxysulfide luminescent material in a same excitation condition; in addition, a hollow structure is formed between a core and a shell layer of the oxysulfide luminescent material, which effectively reduces usage of rare earth elements in the shell layer and lowers cost of the luminescent material. Also provided is a preparation method for the oxysulfide luminescent material.

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Patent Owner(s)

Patent OwnerAddress
OCEAN'S KING LIGHTING SCIENCE & TECHNOLOGY CO LTD518000 GUANGDONG PROVINCE SHENZHEN NANSHAN DISTRICT NANHAI ROAD SEA KING BUILDING BLOCK A 22 FLOOR SHENZHEN CITY GUANGDONG PROVINCE 518000
SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO LTDF/2 NORTH SIDE MAIN BUILDING OF HUAYE COMPANY NO 84 DONGBIN RD NANSHAN DISTRICT SHENZHEN GUANGDONG

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Wang, Rong Shenzhen, CN 224 1444
Zhou, Mingjie Shenzhen, CN 204 346

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