JP5881176B2 - 蛍光体、照明器具および画像表示装置 - Google Patents
蛍光体、照明器具および画像表示装置 Download PDFInfo
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 131
- 239000013078 crystal Substances 0.000 claims description 123
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 23
- 229910018250 LaSi Inorganic materials 0.000 claims description 21
- 230000005284 excitation Effects 0.000 claims description 20
- 238000010894 electron beam technology Methods 0.000 claims description 19
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 229910052782 aluminium Inorganic materials 0.000 claims description 14
- 239000006104 solid solution Substances 0.000 claims description 12
- 239000000126 substance Substances 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 8
- 229910052760 oxygen Inorganic materials 0.000 claims description 8
- 239000001301 oxygen Substances 0.000 claims description 8
- 229910052688 Gadolinium Inorganic materials 0.000 claims description 7
- 229910052769 Ytterbium Inorganic materials 0.000 claims description 7
- 229910052684 Cerium Inorganic materials 0.000 claims description 6
- 229910052693 Europium Inorganic materials 0.000 claims description 6
- 229910052771 Terbium Inorganic materials 0.000 claims description 6
- 238000011049 filling Methods 0.000 claims description 6
- 210000003918 fraction a Anatomy 0.000 claims description 6
- 210000000540 fraction c Anatomy 0.000 claims description 6
- 229910052692 Dysprosium Inorganic materials 0.000 claims description 5
- 229910052691 Erbium Inorganic materials 0.000 claims description 5
- 229910052689 Holmium Inorganic materials 0.000 claims description 5
- 229910052779 Neodymium Inorganic materials 0.000 claims description 5
- 229910052777 Praseodymium Inorganic materials 0.000 claims description 5
- 229910052772 Samarium Inorganic materials 0.000 claims description 5
- 229910052775 Thulium Inorganic materials 0.000 claims description 5
- 239000000843 powder Substances 0.000 description 41
- 239000000203 mixture Substances 0.000 description 32
- 239000002994 raw material Substances 0.000 description 25
- 238000010304 firing Methods 0.000 description 24
- 239000002245 particle Substances 0.000 description 14
- 238000000034 method Methods 0.000 description 13
- 150000004767 nitrides Chemical class 0.000 description 11
- 239000012071 phase Substances 0.000 description 11
- 238000002441 X-ray diffraction Methods 0.000 description 10
- 229910010272 inorganic material Inorganic materials 0.000 description 9
- 229910052581 Si3N4 Inorganic materials 0.000 description 8
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 description 8
- 150000002484 inorganic compounds Chemical class 0.000 description 8
- 239000000047 product Substances 0.000 description 8
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 8
- 239000012298 atmosphere Substances 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 7
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 229910052710 silicon Inorganic materials 0.000 description 6
- 239000010703 silicon Substances 0.000 description 6
- 229910004122 SrSi Inorganic materials 0.000 description 5
- 239000011575 calcium Substances 0.000 description 5
- 239000003086 colorant Substances 0.000 description 5
- 238000000295 emission spectrum Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 150000002500 ions Chemical class 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 239000012299 nitrogen atmosphere Substances 0.000 description 5
- 229910052582 BN Inorganic materials 0.000 description 4
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000003213 activating effect Effects 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000009257 reactivity Effects 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000007795 chemical reaction product Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 229910001940 europium oxide Inorganic materials 0.000 description 3
- AEBZCFFCDTZXHP-UHFFFAOYSA-N europium(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Eu+3].[Eu+3] AEBZCFFCDTZXHP-UHFFFAOYSA-N 0.000 description 3
- 229910052733 gallium Inorganic materials 0.000 description 3
- 239000007791 liquid phase Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 229910052712 strontium Inorganic materials 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910017414 LaAl Inorganic materials 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 2
- 230000004913 activation Effects 0.000 description 2
- 239000012190 activator Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- RAABOESOVLLHRU-UHFFFAOYSA-N diazene Chemical compound N=N RAABOESOVLLHRU-UHFFFAOYSA-N 0.000 description 2
- 229910000071 diazene Inorganic materials 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 238000000695 excitation spectrum Methods 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical group [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 239000004570 mortar (masonry) Substances 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 238000005245 sintering Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000005979 thermal decomposition reaction Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910052727 yttrium Inorganic materials 0.000 description 2
- IRPGOXJVTQTAAN-UHFFFAOYSA-N 2,2,3,3,3-pentafluoropropanal Chemical compound FC(F)(F)C(F)(F)C=O IRPGOXJVTQTAAN-UHFFFAOYSA-N 0.000 description 1
- 102100032047 Alsin Human genes 0.000 description 1
- 101710187109 Alsin Proteins 0.000 description 1
- KLZUFWVZNOTSEM-UHFFFAOYSA-K Aluminum fluoride Inorganic materials F[Al](F)F KLZUFWVZNOTSEM-UHFFFAOYSA-K 0.000 description 1
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 230000005260 alpha ray Effects 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- QCLQZCOGUCNIOC-UHFFFAOYSA-N azanylidynelanthanum Chemical compound [La]#N QCLQZCOGUCNIOC-UHFFFAOYSA-N 0.000 description 1
- 238000000498 ball milling Methods 0.000 description 1
- 229910052788 barium Inorganic materials 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 1
- 229910001634 calcium fluoride Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000000280 densification Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002189 fluorescence spectrum Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 238000001239 high-resolution electron microscopy Methods 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000011147 inorganic material Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 238000001683 neutron diffraction Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Images
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
- C09K11/7783—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
- C09K11/7784—Chalcogenides
- C09K11/7787—Oxides
-
- 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
- C09K11/0883—Arsenides; Nitrides; Phosphides
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J1/00—Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps
- H01J1/54—Screens on or from which an image or pattern is formed, picked-up, converted, or stored; Luminescent coatings on vessels
- H01J1/62—Luminescent screens; Selection of materials for luminescent coatings on vessels
- H01J1/63—Luminescent screens; Selection of materials for luminescent coatings on vessels characterised by the luminescent material
Description
前記無機結晶は、La1−xMxSi9Al19OyN32−y結晶(ただし、xは、0.001≦ x ≦0.99、yは、0.001≦ y ≦0.99)であり得る。
0.0001≦ a ≦0.03 ・・・・・・・・・・・・・(i)
0.1≦ b ≦0.2 ・・・・・・・・・・・・・・・・(ii)
0.25≦ c ≦0.4 ・・・・・・・・・・・・・・(iii)
0≦ d ≦0.1 ・・・・・・・・・・・・・・・・・・(iv)
0.4≦ e ≦0.55 ・・・・・・・・・・・・・・・・(v)
0.0001≦ f ≦0.02 ・・・・・・・・・・・・(vi)
を満たしてもよい。
0.015≦ a ≦0.018 ・・・・・・・・・・・(vii)
0.13≦ b ≦0.16 ・・・・・・・・・・・・(viii)
0.29≦ c ≦0.33 ・・・・・・・・・・・・・・(ix)
0≦ d ≦0.03 ・・・・・・・・・・・・・・・・・・(x)
0.48≦ e ≦0.52 ・・・・・・・・・・・・・・(xi)
0.0005≦ f ≦0.01 ・・・・・・・・・・・(xii)
を満たしてもよい。
0.0001≦ a ≦0.03 ・・・・・・・・・・・・・(i)
0.1≦ b ≦0.2 ・・・・・・・・・・・・・・・・(ii)
0.25≦ c ≦0.4 ・・・・・・・・・・・・・・(iii)
0≦ d ≦0.1 ・・・・・・・・・・・・・・・・・・(iv)
0.4≦ e ≦0.55 ・・・・・・・・・・・・・・・・(v)
0.0001≦ f ≦0.02 ・・・・・・・・・・・・(vi)
を満たす蛍光体は、発光強度が高く、好ましい。
0.015≦ a ≦0.018 ・・・・・・・・・・・(vii)
0.13≦ b ≦0.16 ・・・・・・・・・・・・(viii)
0.29≦ c ≦0.33 ・・・・・・・・・・・・・・(ix)
0≦ d ≦0.03 ・・・・・・・・・・・・・・・・・・(x)
0.48≦ e ≦0.52 ・・・・・・・・・・・・・・(xi)
0.0005≦ f ≦0.01 ・・・・・・・・・・・(xii)
を満たす蛍光体は、特に発光強度が高く、好ましい。
Claims (9)
- 少なくとも、Laと、Siと、Alと、N(窒素)と、M元素(ただし、Mは、Ce、Pr、Nd、Sm、Eu、Gd、Tb、Dy、Ho、Er、TmおよびYbからなる群から選ばれる少なくとも1種の元素)と、必要に応じてO(酸素)とを含む無機結晶からなり、
前記無機結晶における前記Laの原子分率aと、前記Siの原子分率bと、前記Alの原子分率cと、前記Oの原子分率dと、前記Nの原子分率eと、前記M元素の原子分率fとは、
0.0001≦ a ≦0.03 ・・・・・・・・・・・(i)
0.1≦ b ≦0.2 ・・・・・・・・・・・・・・(ii)
0.25≦ c ≦0.4 ・・・・・・・・・・・・(iii)
0≦ d ≦0.1 ・・・・・・・・・・・・・・・・(iv)
0.4≦ e ≦0.55 ・・・・・・・・・・・・・・(v)
0.0001≦ f ≦0.02 ・・・・・・・・・・(vi)
を満たし、
前記無機結晶は、LaSi9Al19N32結晶または前記LaSi9Al19N32結晶の固溶体結晶を母体結晶とし、前記母体結晶を前記M元素で付活した結晶である、蛍光体。 - 前記母体結晶は、LaSi9Al19N32結晶である、請求項1に記載の蛍光体。
- 前記無機結晶は、La1−xMxSi9Al19OyN32−y結晶(ただし、xは、0.001≦ x ≦0.99、yは、0.001≦ y ≦0.99)である、請求項1に記載の蛍光体。
- 前記無機結晶は、La1−xEuxSi9Al19OyN32−y結晶(ただし、xは、0.001≦ x ≦0.99、x=y)である、請求項1に記載の蛍光体。
- 前記無機結晶は、La1−xCexSi9Al19N32結晶(ただし、xは、0.001≦ x ≦0.99)である、請求項1に記載の蛍光体。
- 前記Laの原子分率aと、前記Siの原子分率bと、前記Alの原子分率cと、前記Oの原子分率dと、前記Nの原子分率eと、前記M元素の原子分率fとは、
0.015≦ a ≦0.018 ・・・・・・・・・(vii)
0.13≦ b ≦0.16 ・・・・・・・・・・(viii)
0.29≦ c ≦0.33 ・・・・・・・・・・・・(ix)
0≦ d ≦0.03 ・・・・・・・・・・・・・・・・(x)
0.48≦ e ≦0.52 ・・・・・・・・・・・・(xi)
0.0005≦ f ≦0.01 ・・・・・・・・・(xii)
を満たす、請求項1に記載の蛍光体。 - 紫外線、可視光線、電子線またはX線の何れかである励起源の照射により、410nmから550nmの間の波長に発光のピーク波長を持つ、請求項1に記載の蛍光体。
- 250〜440nmの波長の光を発する発光光源と、発光光源の光を異なる波長に変換する蛍光体とから構成される照明器具において、前記蛍光体は、請求項1に記載の蛍光体を含む、照明器具。
- 励起源と蛍光体とを含む画像表示装置であって、前記蛍光体は、請求項1に記載の蛍光体を含む、画像表示装置。
Priority Applications (1)
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CN112135889A (zh) * | 2018-05-18 | 2020-12-25 | 电化株式会社 | 红色荧光体及发光装置 |
CN116716105A (zh) * | 2023-06-12 | 2023-09-08 | 兰州大学 | 一种发光材料及其制备方法和应用 |
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JPH09218149A (ja) | 1996-02-15 | 1997-08-19 | Shimadzu Corp | 検出計セルおよび光学測定装置 |
JP2927279B2 (ja) | 1996-07-29 | 1999-07-28 | 日亜化学工業株式会社 | 発光ダイオード |
JP2003055657A (ja) | 2001-06-07 | 2003-02-26 | Nichia Chem Ind Ltd | 低速電子線用の蛍光体 |
JP3668770B2 (ja) | 2001-06-07 | 2005-07-06 | 独立行政法人物質・材料研究機構 | 希土類元素を付活させた酸窒化物蛍光体 |
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JP3837588B2 (ja) | 2003-11-26 | 2006-10-25 | 独立行政法人物質・材料研究機構 | 蛍光体と蛍光体を用いた発光器具 |
JP3921545B2 (ja) | 2004-03-12 | 2007-05-30 | 独立行政法人物質・材料研究機構 | 蛍光体とその製造方法 |
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WO2005019376A1 (ja) * | 2003-08-22 | 2005-03-03 | National Institute For Materials Science | 酸窒化物蛍光体と発光器具 |
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EP2610323A4 (en) | 2014-03-26 |
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US20130147341A1 (en) | 2013-06-13 |
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