WO2004111155A1 - 紫外線励起発光素子 - Google Patents
紫外線励起発光素子 Download PDFInfo
- Publication number
- WO2004111155A1 WO2004111155A1 PCT/JP2004/008082 JP2004008082W WO2004111155A1 WO 2004111155 A1 WO2004111155 A1 WO 2004111155A1 JP 2004008082 W JP2004008082 W JP 2004008082W WO 2004111155 A1 WO2004111155 A1 WO 2004111155A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- ultraviolet
- phosphor
- emitting device
- excited light
- group
- Prior art date
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
- C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/02—Details
- H01J61/38—Devices for influencing the colour or wavelength of the light
- H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
- H01J61/44—Devices characterised by the luminescent material
-
- 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
- C09K11/54—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing zinc or cadmium
-
- 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
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Definitions
- the present invention relates to an ultraviolet-excitation light-emitting device.
- An ultraviolet-excited light-emitting device used for a backlight is usually composed of a substrate, a phosphor, and an electrode.
- An object of the present invention is to provide a high-luminance ultraviolet-excited light-emitting device.
- the present inventors have conducted intensive studies to solve the above problems, and as a result, have completed the present invention.
- the present invention provides an ultraviolet-excited light-emitting device including a compound represented by the following formula (1) and a phosphor containing at least one selected from the group consisting of Eu and Mn as an activator. is there.
- Micromax 1 is at least two selected from the group consisting of C a, S r and B a, a S r or B a, small M 2 is selected from the group consisting of M g and Z n M 3 is at least one selected from the group consisting of S i and G e There is also one.
- the phosphor contained in the ultraviolet excitation light emitting device of the present invention contains the compound represented by the above formula (1) and an activator.
- M 1 is a divalent metal element, a combination of J & and 3]: a combination of Ca and Ba, a combination of 31 "and 8 &, a combination of Ca and Sr and B Combination of a, S r or B a.
- M 2 is a divalent metal element, a combination of Mg and Zn, Mg or Zn, and preferably Mg.
- M 3 is a tetravalent metal element, and is a combination of Si and Ge, Si or Ge, and preferably Si.
- the activator is a combination of Eu and Mn, Eti or Mn, preferably Eu.
- the phosphor is preferably a compound containing Eu as an activator and represented by the following formula (2), and more preferably a compound satisfying that a is more than 0 and not more than 0.1. .
- MM 2 and M 3 are the same as MM 2 and M 3 in the formula (1), respectively. ]
- b exceeds 0.1, preferably 0.2 or more, and 4 or less.
- c is more than 0, preferably not less than 0.003, and not more than 0.1, preferably not more than 0.05.
- the phosphor contained in the ultraviolet-excited light-emitting device of the present invention has the following characteristics from the viewpoint of improving brightness. It preferably has the same crystal structure as Diopside.
- the phosphor contained in the ultraviolet-excited light-emitting device of the present invention usually has an average particle size of about 0.5 m or more and about 8 z ⁇ m or less.
- the phosphor contained in the ultraviolet excitation light emitting device of the present invention may be prepared by baking a metal compound having a composition ratio of the compound represented by the formula (1) and the phosphor containing the activator. For example, at least two metal compounds are weighed so as to have a predetermined composition, they are mixed, and the mixture is fired.
- the metal compound used is a calcium compound, a strontium compound, a barium compound, a europium compound, a manganese compound, a magnesium compound, a zinc compound, a silicon compound, a germanium compound, or a compound containing these metals.
- These metal compounds include compounds that can be decomposed at high temperatures to form oxides, such as high-purity (about 99% by weight or more) hydroxides, carbonates, nitrates, halides, and oxalates, or Oxides of high purity (purity of about 99% by weight or more) can be mentioned.
- These metal compounds are weighed to have a predetermined composition.
- C a C_ ⁇ 3, S r C_ ⁇ 3, Eu 2 ⁇ 3, MgO, and S I_ ⁇ 2 these molar ratio of 0. I 92: 0.2: 0.004: 1:
- the mixture may be mixed so as to be 2: 2.
- the weighed metal compound may be mixed using, for example, a pole mill, a V-type mixer, or a vessel equipped with a stirrer. Further, from the viewpoint of improving the crystallinity of the obtained phosphor and controlling the crystal particle diameter, an appropriate amount of flux may be added to the metal compound, and these may be mixed.
- the flux L i F, NaF, KF , L i C l, NaC l, KC 1, L i 2 C0 3, Na 2 C_ ⁇ 3, K 2 C_ ⁇ 3, NaHC0 3, NH 4 C 1, such as NH 4 I and the like.
- the obtained mixture is preferably calcined in a reducing atmosphere, for example, under a nitrogen (N 2 ) atmosphere containing about 0.1% to about 10% by volume of hydrogen, or about 0.1% by volume of hydrogen. It is preferable to carry out the reaction in an argon (Ar) atmosphere containing about 10% by volume.
- a mixture of at least two kinds of metal compounds may be added with an appropriate amount of carbon and calcined, or a mixture of at least two kinds of metal compounds and an appropriate amount of carbon may be mixed. May be fired. Usually, the firing may be performed under the following conditions: temperature: about 900 ° C. to about 1500 ° C., and time: about 1 hour to about 100 hours.
- the above mixture contains compounds that can decompose at high temperatures to oxides, such as hydroxides, carbonates, nitrates, halides, and oxalates, calcine the mixture before firing.
- the calcination may be performed in any of an oxidizing atmosphere (for example, in the air) and a reducing atmosphere.
- the calcination is performed at a temperature at which hydroxides, carbonates, nitrates, halides or oxalates are desorbed from water of crystallization or when hydroxides, carbonates, nitrates, halides or oxalates are oxides.
- the temperature may be set at a temperature of about 40 Ot or more and less than about 900 ° C.
- the phosphor obtained by firing may be ground, washed or classified. Crushing may be performed using, for example, a pole mill or a jet mill.
- the phosphor thus obtained may be subjected to a heat treatment. By performing the heat treatment, a phosphor having higher luminance may be obtained.
- the heat treatment may be usually performed under the same conditions as the above-described firing. Further, the heat treatment may be performed twice or more.
- the ultraviolet-excited light-emitting display element of the present invention contains the above-mentioned phosphor, and usually contains a phosphor and a substrate.
- the ultraviolet-excited light-emitting display element preferably includes a base material and a phosphor disposed in a layer on the base material.
- Other ultraviolet-excited light-emitting display elements include cold cathode tubes (of pack lights for liquid crystal displays) and three-wavelength fluorescent lamps. These ultraviolet-excited light-emitting display elements are usually Two
- Red phosphor green phosphor, substrate and electrode.
- the red phosphor used is not particularly limited as long as it emits red light when excited by ultraviolet rays.
- the green phosphor is not particularly limited as long as it emits green light when excited by ultraviolet rays.
- the above-described ultraviolet-excited light-emitting device of the present invention emits high-intensity blue light when excited by irradiation with ultraviolet light, preferably having a wavelength of about 200 nm or more and about 400 nm or less. I do.
- the high-load fluorescent lamp may be prepared, for example, by a method including steps (i) to (vi).
- the luminance of the ultraviolet-excited light-emitting element was determined by the following method. Brightness of UV-excited light emitting device:
- the UV-excited light-emitting device was irradiated with ultraviolet light (mercury emission line) having a wavelength of 254 nm using a mercury lamp.
- ultraviolet light (mercury emission line) having a wavelength of 254 nm using a mercury lamp.
- the obtained fired product was heat-treated at 1200 ° C. for 2 hours under an atmosphere of N 2 containing 2% by volume of H 2 . Further heat treatment was performed once.
- the obtained phosphor has the same crystal structure as diopside and wherein Ca 0. 992 Eu. .. It comprised the compound represented by Q8 Mg S i 2 ⁇ 6.
- the phosphor was placed on a glass substrate to form a phosphor layer, thereby obtaining an ultraviolet-excited light-emitting device.
- This ultraviolet-excited light-emitting element emitted blue light when irradiated with ultraviolet light.
- the luminance of this ultraviolet-excited light-emitting element was set to 100.
- the resulting phosphor has the same crystal structure as diopside and has the formula CaQ . 32 S r. Q6 Eu. .. . 8 MgS i 2 ⁇ above phosphor comprised a compound represented by 6 to form a phosphor layer is placed on a glass substrate with ultraviolet excitation light emitting element Got. This ultraviolet-excited light-emitting element emitted blue light when irradiated with ultraviolet light. The luminance of this ultraviolet-excited light emitting device was 136.
- Example 1 C AC_ ⁇ 3: was changed to 2: S r C_ ⁇ 3: Eu 2 0 3: MgC0 3: the molar ratio of S i 0 2 0. 792: 0. 2: 0. 004: 1 Other than the above, the same operation was performed.
- the resulting phosphor has the same crystal structure as diopside, and has the formula C a. .792 S r. . 2 Eu Q .. . 8 Mg S i 2 0 one der those containing a compound represented by the 6 ⁇ .
- the phosphor was placed on a glass substrate to form a phosphor layer, thereby obtaining an ultraviolet-excited light-emitting device.
- This ultraviolet-excited light-emitting element emitted blue light when irradiated with ultraviolet light.
- the luminance of this UV-excited light emitting device was 213.
- Example 1 C AC_ ⁇ 3: was changed to 2: S r C_ ⁇ 3: Eu 2 0 3: MgC0 3: the molar ratio of S i 0 2 0. 692: 0. 3: 0. 004: 1 Except for the same operation.
- the resulting phosphor has the same crystal structure as diopside and has the formula Ca Q .792Sr . . 2 Eu. .. . It comprised the 8 MgS i 2 ⁇ compound represented by 6.
- the phosphor was placed on a glass substrate to form a phosphor layer, thereby obtaining an ultraviolet-excited light-emitting device.
- This ultraviolet-excited light-emitting element emitted blue light when irradiated with ultraviolet light.
- the luminance of this ultraviolet-excited light-emitting element was 226.
- Example 1 C AC_ ⁇ 3: was changed to 2: S r C_ ⁇ 3: Eu 2 0 3: MgC0 3: the molar ratio of S I_ ⁇ 2 0.692: 0.296: 0.006: 1 Other than the above, the same operation was performed.
- the obtained phosphor has the same crystal structure as diopside, And was to also include a formula Ca 0. 692 S r 0. 296 Eu Q. Compounds represented by Q12 MgS i 2 ⁇ 6.
- the phosphor was placed on a glass substrate to form a phosphor layer, thereby obtaining an ultraviolet-excited light-emitting device.
- This ultraviolet-excited light-emitting element emitted blue light when irradiated with ultraviolet light.
- the luminance of this ultraviolet-excited light emitting device was 231.
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/559,378 US7791261B2 (en) | 2003-06-11 | 2004-06-03 | Ultraviolet excited light-emitting device |
EP04735998A EP1666563A4 (en) | 2003-06-11 | 2004-06-03 | ULTRAVIOLET ANTICIPATED LIGHT EMITTING DEVICE |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003166085 | 2003-06-11 | ||
JP2003-166085 | 2003-06-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004111155A1 true WO2004111155A1 (ja) | 2004-12-23 |
Family
ID=33549247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/008082 WO2004111155A1 (ja) | 2003-06-11 | 2004-06-03 | 紫外線励起発光素子 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7791261B2 (ja) |
EP (1) | EP1666563A4 (ja) |
KR (1) | KR20060018245A (ja) |
CN (1) | CN100419040C (ja) |
TW (1) | TW200502361A (ja) |
WO (1) | WO2004111155A1 (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101955772A (zh) * | 2009-07-17 | 2011-01-26 | 晶元光电股份有限公司 | 荧光材料及其制备方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20070051924A1 (en) * | 2005-09-07 | 2007-03-08 | Canon Kabushiki Kaisha | Fluorescent material, fluorescent substance, display, and process for preparing fluorescent substance |
JP5119631B2 (ja) * | 2006-09-14 | 2013-01-16 | 株式会社日立製作所 | 画像表示装置 |
JP5230214B2 (ja) * | 2007-02-02 | 2013-07-10 | 宇部マテリアルズ株式会社 | 青色発光蛍光体粉末およびその製造方法 |
DE102007018099A1 (de) * | 2007-04-17 | 2008-10-23 | Osram Gesellschaft mit beschränkter Haftung | Rot emittierender Leuchtstoff und Lichtquelle mit derartigem Leuchtstoff |
CN101784636B (zh) * | 2007-08-22 | 2013-06-12 | 首尔半导体株式会社 | 非化学计量四方铜碱土硅酸盐磷光体及其制备方法 |
TWI421328B (zh) * | 2011-09-06 | 2014-01-01 | Ind Tech Res Inst | 螢光材料與白光發光裝置 |
JP6368357B2 (ja) * | 2013-09-26 | 2018-08-01 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 固体照明用のニトリドアルモシリケート蛍光体 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002332481A (ja) * | 2000-09-29 | 2002-11-22 | Sumitomo Chem Co Ltd | 真空紫外線励起発光素子用の蛍光体 |
JP2003142004A (ja) * | 2001-10-31 | 2003-05-16 | Hitachi Ltd | 発光装置及びこれを用いた表示装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TW353678B (en) * | 1994-08-17 | 1999-03-01 | Mitsubishi Chem Corp | Aluminate phosphor |
US6802990B2 (en) | 2000-09-29 | 2004-10-12 | Sumitomo Chemical Company, Limited | Fluorescent substances for vacuum ultraviolet radiation excited light-emitting devices |
JP2002285147A (ja) | 2001-03-22 | 2002-10-03 | Nec Lighting Ltd | 蛍光体及びこれを用いた蛍光ランプ |
KR20050118241A (ko) | 2001-10-23 | 2005-12-15 | 마쯔시다덴기산교 가부시키가이샤 | 플라즈마 디스플레이 장치 |
US6884367B2 (en) | 2001-12-19 | 2005-04-26 | Sumitomo Chemical Company Limited | Method for producing silicate phosphor |
JP2004285233A (ja) * | 2003-03-24 | 2004-10-14 | Sumitomo Chem Co Ltd | 蛍光体の製造方法 |
JP4222099B2 (ja) | 2003-05-16 | 2009-02-12 | 住友化学株式会社 | 真空紫外線励起発光素子用蛍光体 |
-
2004
- 2004-06-03 TW TW093116009A patent/TW200502361A/zh unknown
- 2004-06-03 KR KR1020057023484A patent/KR20060018245A/ko not_active Application Discontinuation
- 2004-06-03 WO PCT/JP2004/008082 patent/WO2004111155A1/ja active Application Filing
- 2004-06-03 EP EP04735998A patent/EP1666563A4/en not_active Withdrawn
- 2004-06-03 US US10/559,378 patent/US7791261B2/en not_active Expired - Fee Related
- 2004-06-03 CN CNB2004800161366A patent/CN100419040C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002332481A (ja) * | 2000-09-29 | 2002-11-22 | Sumitomo Chem Co Ltd | 真空紫外線励起発光素子用の蛍光体 |
JP2003142004A (ja) * | 2001-10-31 | 2003-05-16 | Hitachi Ltd | 発光装置及びこれを用いた表示装置 |
Non-Patent Citations (1)
Title |
---|
See also references of EP1666563A4 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101955772A (zh) * | 2009-07-17 | 2011-01-26 | 晶元光电股份有限公司 | 荧光材料及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
US7791261B2 (en) | 2010-09-07 |
CN1806027A (zh) | 2006-07-19 |
TW200502361A (en) | 2005-01-16 |
CN100419040C (zh) | 2008-09-17 |
KR20060018245A (ko) | 2006-02-28 |
EP1666563A1 (en) | 2006-06-07 |
EP1666563A4 (en) | 2008-07-02 |
US20060150865A1 (en) | 2006-07-13 |
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