IN2012DN02775A - - Google Patents

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Publication number
IN2012DN02775A
IN2012DN02775A IN2775DEN2012A IN2012DN02775A IN 2012DN02775 A IN2012DN02775 A IN 2012DN02775A IN 2775DEN2012 A IN2775DEN2012 A IN 2775DEN2012A IN 2012DN02775 A IN2012DN02775 A IN 2012DN02775A
Authority
IN
India
Prior art keywords
luminophore
alkaline earth
wavelength range
anions
crystals
Prior art date
Application number
Inventor
Wolfgang Kempfert
Sylke Rosler
Sven Rosler
Cheng-Jun Duan
Rudolf Dennstedt
Original Assignee
Leuchtstoffwerk Breitungen
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 Leuchtstoffwerk Breitungen filed Critical Leuchtstoffwerk Breitungen
Publication of IN2012DN02775A publication Critical patent/IN2012DN02775A/en

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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
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • 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
    • C09K11/55—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing beryllium, magnesium, alkali metals or alkaline earth metals
    • 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
    • C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
    • C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
    • 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
    • C09K11/0838—Aluminates; 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
    • C09K11/57—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing manganese or rhenium
    • C09K11/572—Chalcogenides
    • C09K11/576—Chalcogenides with alkaline earth metals
    • 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
    • C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]
    • Y10T428/2991—Coated
    • Y10T428/2993—Silicic or refractory material containing [e.g., tungsten oxide, glass, cement, etc.]

Abstract

The present invention relates to alkaline earth metal silicate luminophores having improved long-term stability and to a corresponding method for improving the long-term stability of alkaline earth metal silicate luminophores. The luminophore according to the invention is a luminophore comprising a base lattice according to the general chemical formula EAxSiyOz, where x, y, z > 0. The component EA is formed by one or more alkaline earth metals. An activator, for example Eu2+ or Mn2+, is doped into the base lattice. The luminophore has the fundamental property to absorb radiation in a first wavelength range and emit radiation in a second wavelength range that is different from the first wavelength range. The luminophore is designed in the form of crystals. According to the invention, the surfaces of the crystals of the luminophore are chemically modified such that at least portions of the surfaces thereof are formed by a chemical compound of the general formula EauZ2. The component Z is formed by anions, which can be chemically combined with the EA cations of the luminophore. The variable u is equal to an ion charge of the anions Z. The chemical modification is therefore not a coating.
IN2775DEN2012 2009-10-15 2010-10-14 IN2012DN02775A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009044255A DE102009044255A1 (en) 2009-10-15 2009-10-15 Alkaline earth metal silicate phosphors and methods for improving their long-term stability
PCT/EP2010/065380 WO2011045359A1 (en) 2009-10-15 2010-10-14 Alkaline earth metal silicate luminophores and method for improving the long-term stability thereof

Publications (1)

Publication Number Publication Date
IN2012DN02775A true IN2012DN02775A (en) 2015-09-18

Family

ID=43416526

Family Applications (1)

Application Number Title Priority Date Filing Date
IN2775DEN2012 IN2012DN02775A (en) 2009-10-15 2010-10-14

Country Status (10)

Country Link
US (1) US8815120B2 (en)
EP (1) EP2396385B1 (en)
JP (2) JP5851994B2 (en)
KR (1) KR101752938B1 (en)
CN (1) CN102686697B (en)
DE (1) DE102009044255A1 (en)
IN (1) IN2012DN02775A (en)
MY (1) MY160637A (en)
RU (1) RU2507233C2 (en)
WO (1) WO2011045359A1 (en)

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DE102009044255A1 (en) * 2009-10-15 2011-04-28 Leuchtstoffwerk Breitungen Gmbh Alkaline earth metal silicate phosphors and methods for improving their long-term stability
US9234129B2 (en) 2010-08-14 2016-01-12 Seoul Semiconductor Co., Ltd. Surface-modified quantum dot luminophores
WO2012023737A2 (en) 2010-08-14 2012-02-23 Seoul Semiconductor Co., Ltd. Light emitting device having surface-modified silicate luminophores
US9614129B2 (en) 2010-08-14 2017-04-04 Seoul Semiconductor Co., Ltd. Light emitting device having surface-modified luminophores
US9196785B2 (en) 2010-08-14 2015-11-24 Seoul Semiconductor Co., Ltd. Light emitting device having surface-modified quantum dot luminophores
DE102010034322A1 (en) * 2010-08-14 2012-02-16 Litec-Lp Gmbh Surface modified silicate phosphors
WO2012047190A1 (en) * 2010-10-03 2012-04-12 Hewlett-Packard Development Company, L.P. Luminescent pixel assembly
KR20150028259A (en) * 2012-06-08 2015-03-13 덴키 가가쿠 고교 가부시기가이샤 Method for treating surface of phosphor, phosphor, light-emitting device, and illumination device
JP6287311B2 (en) * 2013-12-06 2018-03-07 日亜化学工業株式会社 Fluoride phosphor and method for producing the same
US20170145306A1 (en) * 2014-06-18 2017-05-25 Panasonic Intellectual Property Management Co., Ltd. Method of manufacturing surface-treated phosphor, surface-treated phosphor, wavelength conversion member, and light emission device
JP2016027077A (en) * 2014-06-30 2016-02-18 パナソニックＩｐマネジメント株式会社 Production method of surface-treated phosphor, surface-treated phosphor obtained by the method, and wavelength conversion member and light-emitting device using the phosphor
JP6399472B2 (en) * 2014-11-19 2018-10-03 宇部興産株式会社 Phosphor powder exhibiting high emission intensity maintenance ratio during continuous emission and method for producing the same
GB2577405B (en) * 2016-09-30 2021-02-17 Sumitomo Chemical Co Particle
GB2554666B (en) * 2016-09-30 2019-12-18 Sumitomo Chemical Co Composite Particle
DE102018125754A1 (en) 2018-10-17 2020-04-23 Leuchtstoffwerk Breitungen Gmbh Alkaline earth metal silicate phosphor and method for improving the long-term stability of an alkaline earth metal silicate phosphor
KR102454269B1 (en) * 2020-06-30 2022-10-14 욱성화학주식회사 Method of manufacturing phosphorescent phosphor with improved hydrolysis stability

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JP3758203B2 (en) * 1995-05-26 2006-03-22 日亜化学工業株式会社 Vacuum ultraviolet-excited luminescent phosphor and method for producing the same
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Also Published As

Publication number Publication date
RU2507233C2 (en) 2014-02-20
WO2011045359A1 (en) 2011-04-21
KR20120091070A (en) 2012-08-17
US20120193579A1 (en) 2012-08-02
RU2012119647A (en) 2013-11-20
DE102009044255A1 (en) 2011-04-28
JP2013507508A (en) 2013-03-04
JP5851994B2 (en) 2016-02-03
KR101752938B1 (en) 2017-06-30
US8815120B2 (en) 2014-08-26
CN102686697A (en) 2012-09-19
EP2396385A1 (en) 2011-12-21
EP2396385B1 (en) 2012-12-19
CN102686697B (en) 2015-05-20
MY160637A (en) 2017-03-15
JP2016029191A (en) 2016-03-03

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