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 LTDFLOOR 1 BUILDING B OCEAN KING TECHNOLOGY BUILDING NO 1601 JUFENG ROAD DONGZHOU COMMUNITY GUANGMING STREET GUANGMING DISTRICT SHENZHEN GUANGDONG 518107 SHENZHEN CITY GUANGDONG PROVINCE 518107
SHENZHEN OCEAN'S KING LIGHTING ENGINEERING CO LTD518000 SHENZHEN CITY GUANGDONG PROVINCE SHENZHEN CITY GUANGDONG PROVINCE 518000

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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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