KR100987086B1 - 형광체와 그 제조 방법 및 발광 기구 - Google Patents
형광체와 그 제조 방법 및 발광 기구 Download PDFInfo
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- KR100987086B1 KR100987086B1 KR1020077021550A KR20077021550A KR100987086B1 KR 100987086 B1 KR100987086 B1 KR 100987086B1 KR 1020077021550 A KR1020077021550 A KR 1020077021550A KR 20077021550 A KR20077021550 A KR 20077021550A KR 100987086 B1 KR100987086 B1 KR 100987086B1
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- oxynitride
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 171
- 238000004519 manufacturing process Methods 0.000 title claims description 34
- 238000000034 method Methods 0.000 title claims description 33
- 239000013078 crystal Substances 0.000 claims abstract description 137
- 150000004767 nitrides Chemical class 0.000 claims abstract description 41
- 229910052751 metal Inorganic materials 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 64
- 239000000843 powder Substances 0.000 claims description 52
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 46
- 238000010304 firing Methods 0.000 claims description 38
- 239000002245 particle Substances 0.000 claims description 35
- 239000000126 substance Substances 0.000 claims description 35
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- 150000002484 inorganic compounds Chemical class 0.000 claims description 21
- 229910010272 inorganic material Inorganic materials 0.000 claims description 21
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 18
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 17
- 150000002736 metal compounds Chemical class 0.000 claims description 13
- 239000007791 liquid phase Substances 0.000 claims description 12
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- 229910052782 aluminium Inorganic materials 0.000 claims description 9
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- 229910052710 silicon Inorganic materials 0.000 claims description 7
- 229910052582 BN Inorganic materials 0.000 claims description 5
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 5
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 claims description 5
- 239000011575 calcium Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 5
- 229910052733 gallium Inorganic materials 0.000 claims description 5
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- 229910019142 PO4 Inorganic materials 0.000 claims description 4
- 229910052788 barium Inorganic materials 0.000 claims description 4
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- 239000012535 impurity Substances 0.000 claims description 4
- 229910052738 indium Inorganic materials 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 4
- 239000010452 phosphate Substances 0.000 claims description 4
- 229910052700 potassium Inorganic materials 0.000 claims description 4
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- 229910052712 strontium Inorganic materials 0.000 claims description 4
- 229910052718 tin Inorganic materials 0.000 claims description 4
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims description 3
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 238000010306 acid treatment Methods 0.000 claims description 3
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical group [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 3
- 229910001634 calcium fluoride Inorganic materials 0.000 claims description 3
- XMBWDFGMSWQBCA-UHFFFAOYSA-N hydrogen iodide Chemical compound I XMBWDFGMSWQBCA-UHFFFAOYSA-N 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
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- 239000010703 silicon Substances 0.000 claims description 2
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- 238000005194 fractionation Methods 0.000 claims 1
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- 239000000243 solution Substances 0.000 claims 1
- 238000000295 emission spectrum Methods 0.000 abstract description 11
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 abstract description 2
- 239000012071 phase Substances 0.000 description 26
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 14
- 229910052757 nitrogen Inorganic materials 0.000 description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 10
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- 238000002441 X-ray diffraction Methods 0.000 description 6
- 230000007423 decrease Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 6
- 230000003213 activating effect Effects 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
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- 229910001873 dinitrogen Inorganic materials 0.000 description 3
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- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 description 3
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
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- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- 108010043121 Green Fluorescent Proteins Proteins 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 229910017414 LaAl Inorganic materials 0.000 description 1
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 229910003564 SiAlON Inorganic materials 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
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- 150000004645 aluminates Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
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- 239000007795 chemical reaction product Substances 0.000 description 1
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- 229910001940 europium oxide Inorganic materials 0.000 description 1
- 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 1
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- 239000003779 heat-resistant material Substances 0.000 description 1
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- 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
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- C04B35/58—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on non-oxide ceramics based on borides, nitrides, i.e. nitrides, oxynitrides, carbonitrides or oxycarbonitrides or silicides
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Abstract
Description
x/a | y/a | z/c | |
Si : 6 (h) | 0.7686 | 0.1744 | 0.2500 |
N1 : 6 (h) | 0.0298 | 0.3294 | 0.2628 |
N2 : 2 (c) | 0.6667 | 0.3333 | 0.2392 |
Claims (34)
- β형 Si3N4 결정 구조, AlN 결정 구조, 또는 AlN 폴리 타입 구조를 갖는 Ce가 고용된 산질화물의 결정을 함유하고, 여기원을 조사함으로써 파장 450 ㎚∼500 ㎚ 범위의 파장에 피크를 갖는 형광을 발광하는 형광체로서,상기 Ce가 고용된 산질화물의 결정은 조성식 CedSieAlfOgNh로 나타내는 것이며,단, d+e+f+g+h=1로 하고,0.00001≤d≤0.01··········· (1)0.07≤e≤0.42·············(2)0.005≤f≤0.41············ (3)0.0005≤g≤0.1············ (4)의 조건을 전부 만족하는 형광체.
- 제1항에 있어서, 상기 여기원을 조사함으로써 파장 470 ㎚∼490 ㎚ 범위의 파장에 피크를 갖는 형광을 발광하는 형광체.
- 제1항에 있어서, 상기 여기원이 100 ㎚ 이상 470 ㎚ 이하의 파장을 갖는 자외선 또는 가시광인 형광체.
- 제1항에 있어서, 상기 여기원이 380 ㎚∼430 ㎚ 범위의 파장의 보라색광인 형광체.
- 제1항에 있어서, 상기 β형 Si3N4 결정 구조를 갖는 산질화물은 β형 사이알론(Si6-zAlzOzN8-z, 단 0<z<4.2)을 함유하는 형광체.
- 제1항에 있어서, 상기 여기원에 의해 발광하는 상기 형광은 상기 발광 피크의 반치폭이 80 ㎚ 이상인 형광체.
- 제1항에 있어서, 상기 산질화물의 결정은 M(단, M은 Ce), A(단, A는 Si, Al로부터 선택되는 1종 또는 2종의 원소) 및 X(단, X는 O, N으로부터 선택되는 1종 또는 2종의 원소)에 있어서,조성식 MaAbXc(식 중, a+b+c=1로 함)로 표시되고, 하기의 조건을 만족하는 형광체.0.00001≤a≤0.01··········(1)0.38≤b≤0.52············(2)0.45≤c≤0.61············(3)
- 삭제
- 제1항에 있어서, 상기 여기원이 조사되었을 때 발광하는 색이 CIE 색도 좌표상의 (x, y)값으로서, 0≤x≤0.3 또한 0≤y≤0.4의 조건을 만족하는 형광체.
- 제1항에 있어서, 상기 산질화물의 결정은 평균 입자 직경 50 ㎚ 이상 20 ㎛ 이하의 단결정을 함유하는 형광체.
- 제1항에 있어서, 상기 산질화물의 결정에 함유되는 Fe, Co, Ni 불순물 원소의 합계가 500 ppm 이하인 형광체.
- 제1항에 있어서, 상기 산질화물의 결정은 다른 결정질 또는 비정질 화합물을 함유하는 혼합물로서 생성되고, 이 혼합물에 있어서의 상기 산질화물 결정의 함유량이 50 질량% 이상인 형광체.
- 제12항에 있어서, 상기 다른 결정질 또는 비정질 화합물은 도전성의 무기 화합물인 형광체.
- 제13항에 있어서, 상기 도전성의 무기 화합물은 Zn, Ga, In, Sn으로부터 선택되는 1종 또는 2종 이상의 원소를 함유하는 산화물, 산질화물 또는 질화물 혹은 이들의 혼합물인 형광체.
- 원료 혼합물을 질소 분위기 중에서 1820℃ 이상 2200℃ 이하의 온도 범위에서 소성하는 공정을 포함하는 제1항 내지 제7항, 또는 제9항 내지 제14항 중 어느 한 항에 기재한 형광체를 제조하는 형광체의 제조 방법.
- 제15항에 있어서, 상기 원료 혼합물이 Ce의 금속, 산화물, 탄산염, 질화물, 불화물, 염화물 또는 산질화물과, 질화규소 또는 질화알루미늄을 함유하는 형광체의 제조 방법.
- 제15항에 있어서, 상기 소성하는 공정에 있어서, 상기 질소 분위기 중은 0.1 MPa 이상 100 MPa 이하의 압력 범위의 질소 분위기 중인 형광체의 제조 방법.
- 제15항에 있어서, 상기 소성하는 공정 전에 분체 또는 응집체 형상의 금속 화합물을 부피 밀도 40% 이하의 충전율로 유지한 상태에서 용기에 충전하여 상기 원료 혼합물을 얻는 공정을 더 포함하는 형광체의 제조 방법.
- 제18항에 있어서, 상기 용기가 질화붕소로 제조된 것인 형광체의 제조 방법.
- 제18항에 있어서, 상기 금속 화합물의 응집체의 평균 입자 직경이 500 ㎛ 이하인 형광체의 제조 방법.
- 제20항에 있어서, 스프레이 드라이어, 체를 이용한 분류 또는 풍력 분급에 의해 상기 금속 화합물의 응집체의 평균 입자 직경을 500 ㎛ 이하로 하는 공정을 더 포함하는 형광체의 제조 방법.
- 제15항에 있어서, 분쇄, 분급, 산처리로부터 선택되는 1종 또는 복수의 방법에 의해 소성한 형광체를 평균 입자 직경이 50 ㎚ 이상 20 ㎛ 이하의 분말로 입도 조정하는 공정을 더 포함하는 형광체의 제조 방법.
- 제15항에 있어서, 상기 소성하는 공정 후의 형광체를 1000℃ 이상이면서 상기 소성하는 공정에서의 소성 온도 미만의 온도에서 열처리하는 공정을 더 포함하는 형광체의 제조 방법.
- 제22항에 있어서, 상기 입도 조정하는 공정 후의 형광체를 1000℃ 이상이면서 상기 소성하는 공정에서의 소성 온도 미만의 온도에서 열처리하는 공정을 더 포함하는 형광체의 제조 방법.
- 제15항에 있어서, 상기 원료 혼합물이 상기 소성하는 공정에서의 소성 온도 이하의 온도에서 액상을 생성하는 무기 화합물을 함유하는 형광체의 제조 방법.
- 제25항에 있어서, 상기 소성 온도 이하의 온도에서 액상을 생성하는 무기 화합물이 Li, Na, K, Mg, Ca, Sr, Ba로부터 선택되는 1종 또는 2종 이상의 원소의 불화물, 염화물, 요오드화물, 브롬화물 또는 인산염의 1종 또는 2종 이상의 혼합물을 함유하는 형광체의 제조 방법.
- 제26항에 있어서, 상기 소성 온도 이하의 온도에서 액상을 생성하는 무기 화합물이 불화칼슘인 형광체의 제조 방법.
- 제25항에 있어서, 상기 원료 혼합물이 상기 소성 온도 이하의 온도에서 액상을 생성하는 무기 화합물을 상기 원료 혼합물 100 중량부에 대하여 0.1 중량부 이상 10 중량부 이하 함유하는 형광체의 제조 방법.
- 제25항에 있어서, 상기 소성하는 공정 후에, 상기 소성 온도 이하의 온도에서 액상을 생성하는 무기 화합물의 함유량을 저감시키도록 용제로 세정하는 공정을 더 포함하는 형광체의 제조 방법.
- 발광 광원과 형광체를 포함하는 조명 기구로서, 이 형광체는 제1항 내지 제7항, 또는 제9항 내지 제14항 중 어느 한 항에 기재한 형광체로 이루어지는 청색 형광체를 포함하는 조명 기구.
- 제30항에 있어서, 상기 발광 광원이 380∼430 ㎚ 파장의 광을 발하는 발광 다이오드(LED) 및/또는 레이저 다이오드(LD)를 포함하는 조명 기구.
- 제30항에 있어서, 상기 발광 광원이 380∼430 ㎚ 파장의 광을 발하는 발광 다이오드(LED) 또는 레이저 다이오드(LD)이고,상기 형광체는 380∼430 ㎚의 여기광에 의해 500 ㎚ 이상 600 ㎚ 이하의 파장에 발광 피크를 갖는 녹색 형광체와, 380∼430 ㎚의 여기광에 의해 600 ㎚ 이상 700 ㎚ 이하의 파장에 발광 피크를 갖는 적색 형광체를 더 포함하고,상기 청색 형광체에 의한 청색광, 상기 녹색 형광체에 의한 녹색광, 상기 적색 형광체에 의한 적색광을 혼합하여 백색광을 발하는 조명 기구.
- 여기원과 형광체를 포함하는 화상 표시 장치로서, 상기 형광체는 제1항 내지 제7항, 또는 제9항 내지 제14항 중 어느 한 항에 기재한 형광체를 포함하는 화상 표시 장치.
- 제33항에 있어서, 상기 화상 표시 장치는 형광 표시관(VFD), 필드 에미션 디스플레이(FED), 플라즈마 디스플레이 패널(PDP), 음극선관(CRT) 중 어느 하나인 화상 표시 장치.
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JP4836229B2 (ja) * | 2005-05-31 | 2011-12-14 | 株式会社東芝 | 蛍光体および発光装置 |
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JP5013374B2 (ja) | 2012-08-29 |
CN101146890B (zh) | 2011-06-01 |
CN101146890A (zh) | 2008-03-19 |
WO2006101096A1 (ja) | 2006-09-28 |
EP1873225B1 (en) | 2012-09-26 |
TW200643151A (en) | 2006-12-16 |
KR20070113237A (ko) | 2007-11-28 |
TWI370169B (ko) | 2012-08-11 |
JPWO2006101096A1 (ja) | 2008-09-04 |
US20090236969A1 (en) | 2009-09-24 |
US7846351B2 (en) | 2010-12-07 |
EP1873225A4 (en) | 2010-01-20 |
EP1873225A1 (en) | 2008-01-02 |
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