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Title:
ALUMINATE-BASED BLUE PHOSPHOR
Document Type and Number:
Japanese Patent JP2012177129
Kind Code:
A
Abstract:

To provide novel aluminate-blue phosphors used in white light illumination systems, and in displays.

This invention relates to the aluminate-based phosphors having the general formula: (M1-xEux)2-ZMgZAlyO[1+(3/2)y], where M is a divalent alkaline earth metal other than magnesium (Mg) from group IIA of the periodic table, where 0.05<x<0.5; 3≤y≤12; and 0.8≤y≤1.2. In another embodiment, 0.2<x<0.5. The composition may contain a halogen, such as fluorine or chlorine. M may be either Ba (barium) or Sr (strontium); when M is Ba, the phosphor is a member of the present barium aluminate magnesium (BAM) series; and when M is strontium, the phosphor is a member of the present strontium magnesium aluminate (SAM) series.


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Inventors:
DONG YI
WANG NING
CHENG SHIFAN
LI YI-QUN
Application Number:
JP2012108489A
Publication Date:
September 13, 2012
Filing Date:
May 10, 2012
Export Citation:
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Assignee:
INTEMATIX CORP
International Classes:
C09K11/64; H01L33/50
Domestic Patent References:
JP2003155479A2003-05-30
Attorney, Agent or Firm:
Hajime Tsukuni
Yasuo Yanagibashi
Satoko Ito
Hidemi Kawada
Masatoshi Ando
Fusayuki Saito



 
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