MY155250A - Non stoichiometric tetragonal copper alkaline earth silicate phosphors and method of preparing the same - Google Patents

Non stoichiometric tetragonal copper alkaline earth silicate phosphors and method of preparing the same

Info

Publication number
MY155250A
MY155250A MYPI2010000741A MYPI20100741A MY155250A MY 155250 A MY155250 A MY 155250A MY PI2010000741 A MYPI2010000741 A MY PI2010000741A MY PI20100741 A MYPI20100741 A MY PI20100741A MY 155250 A MY155250 A MY 155250A
Authority
MY
Malaysia
Prior art keywords
alkaline earth
copper alkaline
preparing
non stoichiometric
same
Prior art date
Application number
MYPI2010000741A
Inventor
Tews Walter
Roth Gundula
Lee Chung Hoon
Tews Stefan
Original Assignee
Seoul Semiconductor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Seoul Semiconductor Co Ltd filed Critical Seoul Semiconductor Co Ltd
Publication of MY155250A publication Critical patent/MY155250A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
    • C09K11/77342—Silicates
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
    • C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

DISCLOSED ARE NON STOICHIOMETRIC COPPER ALKALINE EARTH SILICATE PHOSPHORS ACTIVATED BY DIVALENT EUROPIUM FOR USING THEM AS HIGH TEMPERATURE STABLE LUMINESCENT MATERIALS FOR ULTRAVIOLET OR DAYLIGHT EXCITATION. THE PHOSPHORS ARE REPRESENTED AS THE FORMULA (BauSrvCawCux)3-y(Zn,Mg,Mn)zSi1+bO5+2b:Eua. THE NONSTOICHIOMETRIC TETRAGONAL SILICATE IS PREPARED IN A HIGH TEMPERATURE SOLID STATE REACTION WITH A SURPLUS OF SILICA IN THE STARTING MIXTURE. FURTHERMORE, LUMINESCENT TETRAGONAL COPPER ALKALINE EARTH SILICATES ARE PROVIDED FOR LED APPLICATIONS, WHICH HAVE A HIGH COLOR TEMPERATURE RANGE FROM ABOUT 2,000K TO 8,000K OR 10,000K SHOWING A CRI WITH RA=80-95, WHEN MIXED WITH OTHER LUMINESCENT MATERIALS. FIG 2.
MYPI2010000741A 2007-08-22 2008-08-14 Non stoichiometric tetragonal copper alkaline earth silicate phosphors and method of preparing the same MY155250A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR20070084659 2007-08-22
KR1020080074241A KR101106175B1 (en) 2007-08-22 2008-07-29 Non stoichiometric tetragonal copper alkaline earth silicate phosphors and method of preparing the same

Publications (1)

Publication Number Publication Date
MY155250A true MY155250A (en) 2015-09-30

Family

ID=40687930

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2010000741A MY155250A (en) 2007-08-22 2008-08-14 Non stoichiometric tetragonal copper alkaline earth silicate phosphors and method of preparing the same

Country Status (4)

Country Link
JP (1) JP2013136785A (en)
KR (1) KR101106175B1 (en)
BR (1) BRPI0815272B1 (en)
MY (1) MY155250A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2592096C (en) * 2004-12-22 2013-08-06 Seoul Semiconductor Co., Ltd. Light emitting device
KR101258397B1 (en) * 2005-11-11 2013-04-30 서울반도체 주식회사 Copper-Alkaline-Earth-Silicate mixed crystal phosphors

Also Published As

Publication number Publication date
KR20090020478A (en) 2009-02-26
KR101106175B1 (en) 2012-01-20
BRPI0815272A8 (en) 2015-10-27
JP2013136785A (en) 2013-07-11
BRPI0815272A2 (en) 2015-02-03
BRPI0815272B1 (en) 2019-06-04

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