JP2008024933A - アルカリ土類金属シリケート系蛍光体及びこれを含む白色発光素子 - Google Patents
アルカリ土類金属シリケート系蛍光体及びこれを含む白色発光素子 Download PDFInfo
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- JP2008024933A JP2008024933A JP2007186157A JP2007186157A JP2008024933A JP 2008024933 A JP2008024933 A JP 2008024933A JP 2007186157 A JP2007186157 A JP 2007186157A JP 2007186157 A JP2007186157 A JP 2007186157A JP 2008024933 A JP2008024933 A JP 2008024933A
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- Prior art keywords
- phosphor
- white light
- alkaline earth
- earth metal
- metal silicate
- Prior art date
- Legal status (The legal status 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 status listed.)
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- 239000000126 substance Substances 0.000 title claims abstract description 29
- 229910052915 alkaline earth metal silicate Inorganic materials 0.000 title claims abstract description 20
- 229910052788 barium Inorganic materials 0.000 claims abstract description 22
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 22
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 17
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 15
- 229910052693 Europium Inorganic materials 0.000 claims abstract description 14
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 8
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 7
- 229910052691 Erbium Inorganic materials 0.000 claims abstract description 7
- 229910052689 Holmium Inorganic materials 0.000 claims abstract description 7
- 229910052779 Neodymium Inorganic materials 0.000 claims abstract description 7
- 229910052777 Praseodymium Inorganic materials 0.000 claims abstract description 7
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 7
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 7
- 229910052775 Thulium Inorganic materials 0.000 claims abstract description 7
- 229910052769 Ytterbium Inorganic materials 0.000 claims abstract description 7
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 7
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 7
- 229910052718 tin Inorganic materials 0.000 claims abstract description 7
- 229910052692 Dysprosium Inorganic materials 0.000 claims abstract description 6
- 229910052787 antimony Inorganic materials 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 80
- 150000001875 compounds Chemical class 0.000 claims description 30
- 229910017639 MgSi Inorganic materials 0.000 claims description 16
- 230000005284 excitation Effects 0.000 claims description 15
- 229910052749 magnesium Inorganic materials 0.000 claims description 10
- 229910052727 yttrium Inorganic materials 0.000 claims description 10
- 238000005286 illumination Methods 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 229910004283 SiO 4 Inorganic materials 0.000 claims description 3
- 229910015999 BaAl Inorganic materials 0.000 claims description 2
- 229910052765 Lutetium Inorganic materials 0.000 claims description 2
- 229910052698 phosphorus Inorganic materials 0.000 claims description 2
- 229910052720 vanadium Inorganic materials 0.000 claims description 2
- 239000011575 calcium Substances 0.000 description 25
- 238000003786 synthesis reaction Methods 0.000 description 15
- 230000015572 biosynthetic process Effects 0.000 description 14
- 239000011572 manganese Substances 0.000 description 14
- 239000011777 magnesium Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 239000000203 mixture Substances 0.000 description 8
- 239000004593 Epoxy Substances 0.000 description 7
- 239000013078 crystal Substances 0.000 description 7
- 238000000295 emission spectrum Methods 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005245 sintering Methods 0.000 description 5
- 238000000862 absorption spectrum Methods 0.000 description 4
- -1 phosphoric acid compound Chemical class 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 3
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- 101100513612 Microdochium nivale MnCO gene Proteins 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 150000001342 alkaline earth metals Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000005090 crystal field Methods 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 239000002210 silicon-based material Substances 0.000 description 2
- 238000010532 solid phase synthesis reaction Methods 0.000 description 2
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 101100496858 Mus musculus Colec12 gene Proteins 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229910052724 xenon Inorganic materials 0.000 description 1
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G17/00—Compounds of germanium
- C01G17/006—Compounds containing germanium, with or without oxygen or hydrogen, and containing two or more other elements
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- 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
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B33/00—Silicon; Compounds thereof
- C01B33/20—Silicates
- C01B33/24—Alkaline-earth metal silicates
-
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- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G19/00—Compounds of tin
- C01G19/006—Compounds containing tin, with or without oxygen or hydrogen, and containing two or more other elements
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G29/00—Compounds of bismuth
- C01G29/006—Compounds containing bismuth, with or without oxygen or hydrogen, and containing two or more other elements
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- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G30/00—Compounds of antimony
- C01G30/002—Compounds containing antimony, with or without oxygen or hydrogen, and containing two or more other elements
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- C09K11/55—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing beryllium, magnesium, alkali metals or alkaline earth metals
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- C09K11/7729—Chalcogenides
- C09K11/7731—Chalcogenides with alkaline earth metals
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- C09K11/7732—Halogenides
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- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
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- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/7794—Vanadates; Chromates; Molybdates; Tungstates
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/7795—Phosphates
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- C09K11/7797—Borates
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- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
- H01L2224/45—Structure, shape, material or disposition of the wire connectors prior to the connecting process of an individual wire connector
- H01L2224/45001—Core members of the connector
- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
- H01L2224/45144—Gold (Au) as principal constituent
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Abstract
【解決手段】本発明は、(M11−x−yAxBy)aMgbM2cOdZeで表示されるアルカリ土類金属シリケート系蛍光体及びこれを含むLEDである。式中、M1は、Ba、Ca及びSrからなる群から選択された一つであり、M2は、Si及びGeのうちから選択された一つ以上であり、A、Bは、それぞれ独立して、Eu、Ce、Mn、Pr、Nd、Sm、Gd、Tb、Dy、Ho、Er、Tm、Yb、Bi、Sn及びSbからなる群から選択された一つであり、Zは、一価または二価元素、H及びNからなる群から選択された一つ以上であり、0<x<1、0≦y≦1、6.3<a<7.7、0.9<b<1.1、3.6<c<4.4、14.4<d<17.6、14.4<d+e<17.6及び0≦e≦0.18である。
【選択図】図1
Description
CaCO3 30g、MgO1.74g、SiO2 10.4g及びEu2O3 0.5gを混合した。前記混合物をアルミナるつぼに入れて、これを電気炉に置いた。還元大気(5% H2及び95% N2)下で、1000〜1300℃で3〜10時間熱処理した。このように得た焼結体を粉末に粉砕し、蒸溜水で洗浄して、蛍光体サンプルCa7MgSi4O16:Euを得た。
CaCO3 35g、MgO 1.8g、SiO2 12.1g、Eu2O3 0.6g及びMnCO3 0.6gを混合した。前記混合物をアルミナるつぼに入れて、これを電気炉に置いた。還元大気(5% H2及び95% N2)下で、1000〜1300℃で3〜10時間熱処理した。このように得た焼結体を粉末に粉砕し、蒸溜水で洗浄して、蛍光体サンプルCa7MgSi4O16:Eu,Mnを得た。
緑色蛍光体として前記合成例1で製造した化合物を使用し(賦活剤はEu2+)、赤色蛍光体としてY2O3:Eu、Biを使用し、青色蛍光体として(Sr,Ba,Ca)5(PO4)3Cl:Euを使用し、励起光源としてUV LED(波長:約390nm)を使用し、図1のような白色LEDを製造した。
20 金ワイヤー
30 電気リード線
40 蛍光体組成物
50 エポキシモールド層
60 成形モールド
70 エポキシドームレンズ
Claims (11)
- 下記化学式1で表示される化合物であることを特徴とする、アルカリ土類金属シリケート系蛍光体。
(M11−x−yAxBy)aMgbM2cOdZe ・・・(化学式1)
前記式中、
M1は、Ba、Ca及びSrからなる群から選択された一つであり、
M2は、Si及びGeのうちから選択された一つ以上であり、
A、Bは、それぞれ独立して、Eu、Ce、Mn、Pr、Nd、Sm、Gd、Tb、Dy、Ho、Er、Tm、Yb、Bi、Sn及びSbからなる群から選択された一つであり、
Zは、一価または二価元素、H及びNからなる群から選択された一つ以上であり、
0<x<1、 0≦y≦1、 6.3<a<7.7、 0.9<b<1.1、 3.6<c<4.4、 14.4<d<17.6、 14.4<d+e<17.6及び0≦e≦0.18である。 - 前記蛍光体が、ブレディガイト構造を有することを特徴とする、請求項1に記載のアルカリ土類金属シリケート系蛍光体。
- 前記蛍光体が、下記化学式2で表示される化合物であることを特徴とする、請求項1に記載のアルカリ土類金属シリケート系蛍光体。
(M11−x−yAxBy)aMgbM2cOd ・・・(化学式2)
前記式中、
M1は、Ba、Ca及びSrからなる群から選択された一つであり、
M2は、Si及びGeのうちから選択された一つ以上であり、
A、Bは、それぞれ独立してEuまたはMnであり、
0<x<1、0≦y≦1、6.3<a<7.7、0.9<b<1.1、3.6<c<4.4及び14.4<d<17.6である。 - 前記化学式1の化合物が、Ca7MgSi4O16:EuまたはCa7MgSi4O16:Eu,Mnであることを特徴とする、請求項1に記載のアルカリ土類金属シリケート系蛍光体。
- LEDと、
緑色蛍光体として請求項1から請求項4のうちいずれか一項に記載のアルカリ土類金属シリケート系蛍光体と、
を含むことを特徴とする、白色発光素子。 - 前記LEDの励起波長が、390〜460nmの範囲であることを特徴とする、請求項5に記載の白色発光素子。
- 青色蛍光体及び赤色蛍光体のうちから選択された一つ以上をさらに含むことを特徴とする、請求項5に記載の白色発光素子。
- 前記青色蛍光体は、BaMg2Al16O27:Eu2+、Sr4Al14O25:Eu2+、BaAl12O19:Eu2+、(Sr,Mg,CA,Ba)5(PO4)3Cl:Eu2+及びSr2Si3O8・2SrCl2:Eu2+からなる群から選択された一つ以上であることを特徴とする、請求項7に記載の白色発光素子。
- 前記赤色蛍光体は、Y2O3:Eu3+,Bi3+(Sr,CA,Ba,Mg,Zn)2P2O7:Eu2+,Mn2+; (Ca,Sr,Ba,Mg,Zn)10(PO4)6(F,Cl,Br,OH)2:Eu2+,Mn2+; (Gd,Y,Lu,La)2O3:Eu3+,Bi3+; (Gd,Y,Lu,La)2O2S:Eu3+,Bi3+; (Gd,Y,Lu,La)BO3:Eu3+,Bi3+; (Gd,Y,Lu,La)(P,V)O4:Eu3+,Bi3+; (Ca,Sr)S:Eu2+;CaLa2S4:Ce3+; (Ba,Sr,Ca)MgP2O7:Eu2+,Mn2+; (Y,Lu)2WO6:Eu3+,Mo6+; (Ba,Sr,Ca)xSiyNz:Eu2+(0.5≦x≦3.1、5≦y≦8、0<z≦3)及び(Sr,CA,Ba,Mg,Zn)2SiO4:Eu2+,Mn2+からなる群から選択された一つ以上であることを特徴とする、請求項7に記載の白色発光素子。
- 前記緑色蛍光体の放出ピーク波長が500〜550nmであり、前記青色蛍光体の放出ピーク波長が440〜460nmであり、前記赤色蛍光体の放出ピーク波長が590〜690nmであることを特徴とする、請求項7に記載の白色発光素子。
- 前記白色発光素子は、照明用であることを特徴とする、請求項5から請求項10のうちいずれか一項に記載の白色発光素子。
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CN101475804B (zh) * | 2008-12-02 | 2013-05-29 | 罗维鸿 | 发光二极管之正硅酸盐绿色荧光粉及其制法 |
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