KR101491404B1 - Green phosphor, and led light-emitting device comprising the same - Google Patents
Green phosphor, and led light-emitting device comprising the same Download PDFInfo
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims description 23
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 5
- 229910052788 barium Inorganic materials 0.000 claims abstract description 5
- 229910052733 gallium Inorganic materials 0.000 claims abstract description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 5
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 229910052772 Samarium Inorganic materials 0.000 claims abstract description 4
- 229910052771 Terbium Inorganic materials 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- 229910052732 germanium Inorganic materials 0.000 claims abstract description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 229910052718 tin Inorganic materials 0.000 claims abstract description 4
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 4
- 239000000843 powder Substances 0.000 claims description 38
- -1 cation compound Chemical class 0.000 claims description 14
- 239000000203 mixture Substances 0.000 claims description 11
- 150000001768 cations Chemical class 0.000 claims description 3
- 150000001785 cerium compounds Chemical class 0.000 claims description 3
- 238000007580 dry-mixing Methods 0.000 claims description 3
- 229910021480 group 4 element Inorganic materials 0.000 claims description 3
- 239000004570 mortar (masonry) Substances 0.000 claims description 3
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 claims description 3
- 239000012856 weighed raw material Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 2
- 239000002223 garnet Substances 0.000 abstract description 3
- 108010043121 Green Fluorescent Proteins Proteins 0.000 abstract 1
- 150000001450 anions Chemical class 0.000 abstract 1
- 125000002091 cationic group Chemical group 0.000 abstract 1
- 229910052745 lead Inorganic materials 0.000 abstract 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 8
- 238000009877 rendering Methods 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 239000012298 atmosphere Substances 0.000 description 4
- 239000007850 fluorescent dye Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 238000012916 structural analysis Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 150000004645 aluminates Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
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- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7774—Aluminates
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- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
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Abstract
Description
본 발명은, 신규한 녹색 형광체, 및 그것을 포함하는 LED 발광 장치에 관한 것이다.The present invention relates to a novel green phosphor and an LED light emitting device including the green phosphor.
종래 상업적으로 광범위하게 사용되는 백색 LED 구현 기술은 형광체 조합으로는 Blue LED 칩에 산화물계 황색 형광체를 도포하여 소자를 제조함으로써 백색을 구현하고 있다. 현재의 조명用 형광체의 대표적인 예는 Aluminate계의 YAG 형광체가 주류를 이루고 있으나 다양한 색좌표의 제어나 휘도의 향상에는 제약이 따르는 실정이다. Conventionally, white light emitting diode (LED), which is widely used in commercial applications, has realized a white color by manufacturing a device by applying an oxide yellow phosphor to a blue LED chip as a phosphor combination. A typical example of the presently used fluorescent material is a YAG fluorescent material of the aluminate type, but the control of various color coordinates and the improvement of the luminance are constrained.
최근에는 YAG 형광체 보다 연색 지수에서 우수한 LuAG (Lu3Al5O12:Ce3 +, LuAG:Ce)형광체에 관한 연구도 활발하다. LuAG 형광체의 발광 파장은 활성제인 Ce3 +의 함량에 따라 530nm ~ 545nm 의 파장 조절이 가능하다. 또한 더 넓은 파장 변화를 위해 Lutetium과 Alumium자리에 Gadolinium 또는 Gallium 등의 물질을 첨가하여 파장을 구현하고 있다.Recently, studies on LuAG (Lu 3 Al 5 O 12 : Ce 3 + , LuAG: Ce) phosphors, which are superior in color rendering index to YAG phosphors, are also actively studied. The emission wavelength of the LuAG phosphor can be adjusted from 530 nm to 545 nm depending on the content of Ce 3 + as an activator. In addition, wavelengths are realized by adding materials such as Gadolinium or Gallium to the Lutetium and Alumium sites for a wider wavelength change.
하지만 현재보다 고 연색성 및 고 휘도의 달성을 위해서는 기존 LuAG 형광체보다 향상된 고 연색성 및 고 휘도의 달성을 위해서는 녹색 및 황색 영역에서의 반치폭이 넓은 형광체의 개발이 요구되며 그에 따른 휘도의 향상이 수반되어야 한다.However, in order to achieve high color rendering and high luminance, it is required to develop a phosphor having a wide half width in the green and yellow regions and to achieve luminance improvement in order to achieve higher color rendering and higher luminance than the conventional LuAG phosphor .
또한 이와 더불어 열적 안정성 향상을 위해 (산)질화물계 형광체 개발에 대한 관심이 집중되고 있다. In addition, attention has been focused on the development of (acid) nitride-based phosphors to improve thermal stability.
본 발명은 종래 기술의 문제점을 해결하고, 반치폭이 넓은 녹색 형광체를 제공하여, 궁극적으로 연색성이 높은 백색 LED 발광장치를 제공하고자 한다.Disclosure of Invention Technical Problem [7] Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the prior art and to provide a white LED light emitting device having a high color rendering property by providing a green phosphor having a wide half width.
본 발명은, 상기한 종래기술의 문제점을 해결하기 위해 안출된 것으로서,SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the conventional art,
하기 화학식 1으로 표현되는 형광체를 제공한다.There is provided a phosphor represented by the following general formula (1).
[화학식 1][Chemical Formula 1]
(Lu1 -(x1+x2),Rx1,Ax2)3(Al(1-y),By)5(O(1-z),Cz)12 (Lu 1 - (x1 + x2 ), R x1, A x2) 3 (Al (1-y), B y) 5 (O (1-z), C z) 12
여기서, A는 Y, Gd, Sm, Tb, La, Sr, Ba, Ca 등 2가 또는 3가의 양이온 금속 원소로 이루어진 군에서 선택되는 1종, B는 제Ⅳ족 원소 C, Si, Ge, Sn, Pb으로 이루어진 군 또는 B, Ga 에서 선택되는 1종, C는 F, Cl, Br, N, S 의 음이온 원소로 이루어진 군에서 선택되는1종, R은 Ce이며, 0<X1+X2<1, 0<Y<1, 0<Z<1이다.A is one kind selected from the group consisting of divalent or trivalent cation metal elements such as Y, Gd, Sm, Tb, La, Sr, Ba and Ca; B is one kind selected from the group IV elements C, Si, Ge, Sn , Pb or an element selected from the group consisting of B and Ga, and C is an element selected from the group consisting of F, Cl, Br, N and S, R is Ce and 0 <X1 + X2 <1 0 < Y < 1, and 0 < Z <
또한, 3가 양이온 화합물, 세륨 화합물, 산화 알루미늄 분말, 질화 알루미늄 화합물 분말을 칭량하는 단계;Weighing the trivalent cation compound, the cerium compound, the aluminum oxide powder and the aluminum nitride compound powder;
상기 칭량된 원료를 유발 및 믹서 등에 건식 혼합하는 단계; 및Dry mixing the weighed raw material into a mortar and a mixer; And
상기 혼합물을 질소 분위기 하의 1400 ∼ 1600℃ 온도 및 1 bar 압력에서 소성하는 단계를 순차적으로 포함하는 것을 특징으로 하는 청구항 1의 형광체 제조방법을 제공한다.And calcining the mixture at a temperature of 1400 to 1600 占 폚 and a pressure of 1 bar under a nitrogen atmosphere.
또한, 본 발명의 형광체를 포함하는 백색 LED 발광 장치를 제공한다.Further, a white LED light emitting device including the phosphor of the present invention is provided.
본 발명의 형광체는, 기존의 가넷 산화물의 동일 파장 대비 보다 넓은 반치폭을 갖는 효과가 있다.The phosphor of the present invention has the effect of having a wider half width of the existing garnet oxide than the same wavelength.
도 1은, 본 발명의 일실시예의 AlN 첨가량에 따른 파장변화를 나타낸 PL 그래프이다.
도 2는, 본 발명의 일실시예의 AlN 첨가량에 따른 구조분석 결과이다.
도 3은, 본 발명의 일실시예의 BN 첨가량에 따른 파장변화를 나타낸 PL 그래프이다.
도 4 및 도 5는, 본 발명 일실시예의 연색성 지수 시뮬레이션 결과이다.1 is a PL graph showing a wavelength change according to an addition amount of AlN in an embodiment of the present invention.
2 is a structural analysis result according to the amount of AlN added in one embodiment of the present invention.
3 is a PL graph showing a wavelength change according to an addition amount of BN in an embodiment of the present invention.
FIG. 4 and FIG. 5 show the results of the color rendering index simulation of the embodiment of the present invention.
이하, 본 발명에 대하여 상세히 설명한다.
Hereinafter, the present invention will be described in detail.
본 발명은, 하기 화학식 1으로 표현되는 형광체 화합물이다.The present invention is a phosphor compound represented by the following general formula (1).
[화학식 1][Chemical Formula 1]
(Lu1 -(x1+x2),Rx1,Ax2)3(Al(1-y),By)5(O(1-z),Cz)12 (Lu 1 - (x1 + x2 ), R x1, A x2) 3 (Al (1-y), B y) 5 (O (1-z), C z) 12
여기서, A는 Y, Gd, Sm, Tb, La, Sr, Ba, Ca 등 2가 또는 3가의 양이온 금속 원소로 이루어진 군에서 선택되는 1종, B는 제Ⅳ족 원소 C, Si, Ge, Sn, Pb으로 이루어진 군 또는 B, Ga 에서 선택되는 1종, C는 F, Cl, Br, N, S 의 음이온 원소로 이루어진 군에서 선택되는1종, R은 Ce이며, 0<X1+X2<1, 0<Y<1, 0<Z<1이다.
A is one kind selected from the group consisting of divalent or trivalent cation metal elements such as Y, Gd, Sm, Tb, La, Sr, Ba and Ca; B is one kind selected from the group IV elements C, Si, Ge, Sn , Pb or an element selected from the group consisting of B and Ga, and C is an element selected from the group consisting of F, Cl, Br, N and S, R is Ce and 0 <X1 + X2 <1 0 < Y < 1, and 0 < Z <
본 발명의 형광체 화합물은,In the phosphor compound of the present invention,
3가 양이온 화합물, 세륨 화합물, 산화 알루미늄 분말, 질화 알루미늄 화합물 분말을 칭량하는 단계;A trivalent cation compound, a cerium compound, an aluminum oxide powder, and an aluminum nitride compound powder;
상기 칭량된 원료를 유발 및 믹서 등에 건식 혼합하는 단계; 및Dry mixing the weighed raw material into a mortar and a mixer; And
상기 혼합물을 질소 분위기 하의 1400 ∼ 1600℃ 온도 및 1 bar 압력에서 소성하는 단계를 순차적 시행하여 제조될 수 있다.And firing the mixture at a temperature of 1400 to 1600 占 폚 and a pressure of 1 bar under a nitrogen atmosphere.
Ce3 +이 첨가된 기본 가넷 구조의 LuAG 형광체 결정 격자 내에 질소를 삽입시켜 보다 넓은 반치폭을 갖는 다 파장 형광체를 제조할 수 있다. 특히, AlN과 BN의 첨가에 의한 스펙트럼의 단파장 이동 및 휘도 향상 효과는, 백색 발광 다이오드에서의 녹색 계열 부분을 보완시켜 연색지수를 향상시킬 수 있다. 또한, 강한 열적, 물리적 안정성을 기대할 수 있다.
It is possible to manufacture a multi-wavelength phosphor having a broader half width by inserting nitrogen into the crystal lattice of LuAG phosphor having a basic garnet structure added with Ce 3 + . Particularly, the short wavelength shift and brightness enhancement effect of the spectrum by the addition of AlN and BN can improve the color rendering index by complementing the green portion in the white light emitting diode. In addition, strong thermal and physical stability can be expected.
이하, 본 발명에 대하여 실시예를 들어 보다 상세히 설명한다. 이하의 실시예는 본 발명의 상세한 설명을 위한 것일 뿐, 이에 의해 권리범위를 제한하려는 의도가 아님을 분명히 해둔다.
Hereinafter, the present invention will be described in more detail with reference to examples. It is to be understood that the following examples are for the purpose of illustration only and are not intended to limit the scope of the present invention.
실시예Example
실시예Example 1 One
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.441 중량부, AlN 분말 0.007 중량부를 혼합하였다.1 part by weight of Lu 2 O 3 powder, 0.046 part by weight of CeO 2 powder, 0.441 part by weight of Al 2 O 3 powder and 0.007 part by weight of AlN powder were mixed.
혼합이 완료된 원료를 알루미나 도가니에 넣고, 질소 가스 분위기 중에서 1400~1600℃ 온도 및 질소(N2) 가스, 압력 1bar 분위기에서 약 3시간 이상 소성하여, 최종적으로 형광체 화합물을 제조하였다.The mixed raw material was placed in an alumina crucible and fired in a nitrogen gas atmosphere at a temperature of 1400 to 1600 ° C and a nitrogen (N 2 ) gas atmosphere at a pressure of 1 bar for about 3 hours or more to finally produce a phosphor compound.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al5O11 .9N0 . 1와 같았다.The composition of the finally produced by the fluorescent compound, [Lu 2 .85 Ce 0 .15 ] 3 Al 5 O 11 .9 N 0. 1 .
실시예Example 2 2
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.423 중량부, AlN 분말 0.022 중량부를 사용한 점을 제외하고는 실시예 1과 모두 동일한 공정을 시행하여 최종적으로 형광체를 제조하였다.Except that 1 weight part of Lu 2 O 3 powder, 0.046 weight part of CeO 2 powder, 0.423 weight part of Al 2 O 3 powder and 0.022 weight part of AlN powder were used, To prepare a phosphor.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al5O11 .7N0 . 3와 같았다.
The composition of the finally produced by the fluorescent compound, [Lu 2 .85 Ce 0 .15 ] 3 Al 5 O 11 .7 N 0. 3 .
실시예Example 3 3
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.405 중량부, AlN 분말 0.036 중량부를 사용한 점을 제외하고는 실시예 1과 모두 동일한 공정을 시행하여 최종적으로 형광체를 제조하였다.Except that 1 weight part of Lu 2 O 3 powder, 0.046 weight part of CeO 2 powder, 0.405 weight part of Al 2 O 3 powder and 0.036 weight part of AlN powder were used, To prepare a phosphor.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al5O11 .5N0 .5와 같았다.
The composition of the finally prepared phosphor compound was the same as [Lu 2 .85 Ce 0 .15 ] 3 Al 5 O 11 .5 N 0 .5 .
실시예Example 4 4
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.39 중량부, AlN 분말 0.05 중량부를 사용한 점을 제외하고는 실시예 1과 모두 동일한 공정을 시행하여 최종적으로 형광체를 제조하였다.Except that 1 part by weight of Lu 2 O 3 powder, 0.046 part by weight of CeO 2 powder, 0.39 parts by weight of Al 2 O 3 powder and 0.05 parts by weight of AlN powder were used, To prepare a phosphor.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al5O11 .5N0 . 7와 같았다.
The composition of the finally prepared phosphor compound was [Lu 2 .85 Ce 0 .15 ] 3 Al 5 O 11 .5 N 0 . 7 .
실시예Example 5 5
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.441 중량부, BN 분말 0.004 중량부를 혼합하였다. 혼합이 완료된 원료를 알루미나 도가니에 넣고, 질소 가스 분위기 중에서 1400~1600? 온도 및 질소(N2) 가스, 압력 1bar 분위기에서 약 3시간 이상 소성하여, 최종적으로 형광체 화합물을 제조하였다.1 part by weight of Lu 2 O 3 powder, 0.046 part by weight of CeO 2 powder, 0.441 part by weight of Al 2 O 3 powder and 0.004 part by weight of BN powder were mixed. The mixed raw material was placed in an alumina crucible and heated in a nitrogen gas atmosphere at 1400 to 1600? The temperature and nitrogen (N 2) gas, at least about 3 hours at atmosphere pressure 1bar fired, to thereby finally producing a fluorescent compound.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al2 .98B0.1O11 .9N0 . 1와 같았다.The composition of the finally prepared phosphor compound was [Lu 2 .85 Ce 0 .15 ] 3 Al 2 .98 B 0.1 O 11 .9 N 0 . 1 .
실시예Example 6 6
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.423 중량부, BN 분말 0.013 중량부를 사용한 점을 제외하고는 실시예 5와 모두 동일한 공정을 시행하여 최종적으로 형광체를 제조하였다.Except that 1 weight part of Lu 2 O 3 powder, 0.046 weight part of CeO 2 powder, 0.423 weight part of Al 2 O 3 powder and 0.013 weight part of BN powder were used, To prepare a phosphor.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al2 .7B0.3O11 .9N0 . 3와 같았다.
The composition of the finally prepared phosphor compound was [Lu 2 .85 Ce 0 .15 ] 3 Al 2 .7 B 0.3 O 11 .9 N 0 . 3 .
실시예Example 7 7
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.405 중량부, BN 분말 0.022 중량부를 사용한 점을 제외하고는 실시예 5와 모두 동일한 공정을 시행하여 최종적으로 형광체를 제조하였다.Except that 1 part by weight of Lu 2 O 3 powder, 0.046 part by weight of CeO 2 powder, 0.405 parts by weight of Al 2 O 3 powder and 0.022 part by weight of BN powder were used, To prepare a phosphor.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al2 .8B0.5O11 .9N0 .5와 같았다.
The composition of the finally prepared phosphor compound was the same as [Lu 2 .85 Ce 0 .15 ] 3 Al 2 .8 B 0.5 O 11 .9 N 0 .5 .
실시예Example 8 8
Lu2O3 분말 1 중량부, CeO2 분말 0.046 중량부, Al2O3 분말 O.387 중량부, BN 분말 0.031 중량부를 사용한 점을 제외하고는 실시예 5와 모두 동일한 공정을 시행하여 최종적으로 형광체를 제조하였다.Except that 1 part by weight of Lu 2 O 3 powder, 0.046 part by weight of CeO 2 powder, 0.387 parts by weight of Al 2 O 3 powder and 0.031 part by weight of BN powder were used, To prepare a phosphor.
최종적으로 제조된 형광체 화합물의 조성은, [Lu2 .85Ce0 .15]3Al2 .3B0.7O11 .9N0 . 7와 같았다.
The composition of the finally produced by the fluorescent compound, [Lu 2 .85 Ce 0 .15 ] 3
비교예Comparative Example
HGPOHGPO 545 545
(Lu2 .85Ce0 .15)3Al5O12:Ce3 +
(Lu 2 .85 Ce 0 .15) 3 Al 5 O 12:
HRPNHRPN 630B 630B
(Sr,Ba)4Si10Al1N17:Eu
(Sr, Ba) 4 Si 10 Al 1 N 17 : Eu
실험예Experimental Example
AlNAlN 첨가량에 따른 변화 측정 Measurement of change according to addition amount
AlN 첨가량에 따라 파장은 단파장으로 이동하였다. 결과는 도 1과 같았다.The wavelength shifted to shorter wavelength depending on the amount of AlN added. The results are shown in Fig.
한편, AlN 첨가량에 따른 구조 분석 결과는 하기 표 1 및 도 2와 같았다.The results of structural analysis according to the amount of AlN added are shown in Table 1 and FIG.
BNBN 첨가량에 따른 변화 측정 Measurement of change according to addition amount
BN 첨가량에 따라 파장은 단파장으로 이동하였다. 결과는 도 3과 같았다.Depending on the amount of BN added, the wavelength shifted to a short wavelength. The results are shown in Fig.
한편, BN 첨가량에 따른 구조 분석 결과는 하기 표 2와 같았다.Table 2 shows the results of the structural analysis according to the addition amount of BN.
3. CRI 시뮬레이션 결과3. CRI simulation result
본 발명의 형광체를 이용한 연색성 지수의 시뮬레이션 결과는 도 4 및 도 5와 같았다.
Simulation results of the color rendering index using the phosphor of the present invention were as shown in Figs. 4 and 5. Fig.
Claims (3)
[화학식 1]
(Lu1 -(x1+x2),Rx1,Ax2)3(Al(1-y),By)5(O(1-z),Cz)12
여기서, A는 Y, Gd, Sm, Tb, La, Sr, Ba, Ca 등 2가 또는 3가의 양이온 금속 원소로 이루어진 군에서 선택되는 1종, B는 제Ⅳ족 원소 C, Si, Ge, Sn, Pb으로 이루어진 군 또는 B, Ga 에서 선택되는 1종, C는 F, Cl, Br, N, S 의 음이온 원소로 이루어진 군에서 선택되는1종, R은 Ce이며, 0<X1+X2<1, 0<Y<1, 0<Z<1이다.A phosphor represented by the following formula (1).
[Chemical Formula 1]
(Lu 1 - (x1 + x2 ), R x1, A x2) 3 (Al (1-y), B y) 5 (O (1-z), C z) 12
A is one kind selected from the group consisting of divalent or trivalent cation metal elements such as Y, Gd, Sm, Tb, La, Sr, Ba and Ca; B is one kind selected from the group IV elements C, Si, Ge, Sn , Pb or an element selected from the group consisting of B and Ga, and C is an element selected from the group consisting of F, Cl, Br, N and S, R is Ce and 0 <X1 + X2 <1 0 < Y < 1, and 0 < Z <
상기 칭량된 원료를 유발 및 믹서 등에 건식 혼합하는 단계; 및
상기 혼합물을 질소 분위기 하의 1400 ∼ 1600℃ 온도 및 1 bar 압력에서 소성하는 단계를 순차적으로 포함하는 것을 특징으로 하는 청구항 1의 형광체 제조방법.A trivalent cation compound, a cerium compound, an aluminum oxide powder, and an aluminum nitride compound powder;
Dry mixing the weighed raw material into a mortar and a mixer; And
And calcining the mixture at a temperature of 1400 to 1600 占 폚 and a pressure of 1 bar under a nitrogen atmosphere.
A white LED light emitting device comprising the phosphor of claim 1.
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| KR101748485B1 (en) * | 2015-07-07 | 2017-06-19 | 주식회사 효성 | WHITE LIGHT-EMITTING DEVICE FOR LCD Back-Light-Unit |
| KR101942799B1 (en) * | 2017-03-24 | 2019-01-28 | 무진주식회사 | Garnet phosphor substituted by lanthanum and preparing method of the same |
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| JP2012124356A (en) | 2010-12-09 | 2012-06-28 | Sharp Corp | Light-emitting device |
| WO2012122401A2 (en) | 2011-03-08 | 2012-09-13 | Intematix Corporation | Yellow-green to yellow-emitting phosphors based on halogenated-aluminates |
| US8398890B2 (en) | 2007-04-18 | 2013-03-19 | Mitsubishi Chemical Corporation | Phosphor and production method thereof, phosphor-containing composition, light emitting device, illuminating device, display, and nitrogen-containing compound |
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| US8398890B2 (en) | 2007-04-18 | 2013-03-19 | Mitsubishi Chemical Corporation | Phosphor and production method thereof, phosphor-containing composition, light emitting device, illuminating device, display, and nitrogen-containing compound |
| JP2012124356A (en) | 2010-12-09 | 2012-06-28 | Sharp Corp | Light-emitting device |
| US20130257266A1 (en) | 2010-12-09 | 2013-10-03 | Sharp Kabushiki Kaisha | Light emitting device |
| WO2012122401A2 (en) | 2011-03-08 | 2012-09-13 | Intematix Corporation | Yellow-green to yellow-emitting phosphors based on halogenated-aluminates |
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| KR101748485B1 (en) * | 2015-07-07 | 2017-06-19 | 주식회사 효성 | WHITE LIGHT-EMITTING DEVICE FOR LCD Back-Light-Unit |
| KR101942799B1 (en) * | 2017-03-24 | 2019-01-28 | 무진주식회사 | Garnet phosphor substituted by lanthanum and preparing method of the same |
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