JP6449963B2 - 光波長変換部材及び発光装置 - Google Patents
光波長変換部材及び発光装置 Download PDFInfo
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- JP6449963B2 JP6449963B2 JP2017198555A JP2017198555A JP6449963B2 JP 6449963 B2 JP6449963 B2 JP 6449963B2 JP 2017198555 A JP2017198555 A JP 2017198555A JP 2017198555 A JP2017198555 A JP 2017198555A JP 6449963 B2 JP6449963 B2 JP 6449963B2
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- Prior art keywords
- wavelength conversion
- conversion member
- light
- crystal particles
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- 238000006243 chemical reaction Methods 0.000 title claims description 38
- 239000013078 crystal Substances 0.000 claims description 84
- 239000002245 particle Substances 0.000 claims description 53
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 40
- 239000000919 ceramic Substances 0.000 claims description 33
- 230000003287 optical effect Effects 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052733 gallium Inorganic materials 0.000 claims description 3
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 3
- 150000002602 lanthanoids Chemical class 0.000 claims description 3
- 229910052706 scandium Inorganic materials 0.000 claims description 3
- 229910052727 yttrium Inorganic materials 0.000 claims description 3
- 238000000034 method Methods 0.000 description 13
- 230000007423 decrease Effects 0.000 description 8
- 239000002270 dispersing agent Substances 0.000 description 8
- 238000010304 firing Methods 0.000 description 7
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 229910052684 Cerium 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
- 238000001354 calcination Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007088 Archimedes method Methods 0.000 description 1
- 229910005191 Ga 2 O 3 Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 description 1
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- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
- H01L33/507—Wavelength conversion elements the elements being in intimate contact with parts other than the semiconductor body or integrated with parts other than the semiconductor body
Description
例えば、特許文献1では、YAG:Ce量を全体の22〜55vol%としており、22vol%未満の場合は青色光の透過が多くなり、色ムラが生じ、55vol%より多い場合は熱伝導率が低下し、耐久性が低下するとしている。
さらに、特許文献3では、A3B5O12:Ce量が20〜25vol%となっている。しかも、この特許文献3では、焼成時のCeの揮発を抑制するために、Ce供給源としてCeAl11O18を0.5〜5vol%含有するとしている。
本発明は、前記課題に鑑みてなされたものであり、その目的は、高い蛍光強度と高い色均質性とを両立できる光波長変換部材及び発光装置を提供することにある。
A:Sc、Y、ランタノイド(Ceは除く)
B:Al、Ga
しかも、セラミックス焼結体の切断面の20μm角の範囲におけるA3B5O12:Ce結晶粒子N個の内、Al2O3結晶粒子内に存在するものの個数をa個、他のA3B5O12:Ce結晶粒子に接することなくAl2O3結晶粒界に存在するものの個数をb個、1個以上の他のA3B5O12:Ce結晶粒子と接しておりAl2O3結晶粒界に存在するものの個数をc個とし、各個数に対する全体の割合a/N、b/N、c/NをそれぞれX、Y、Zとするとき、各割合が下記の範囲を満たしている。
9%≦Y≦45%
48%≦Z≦90%
このように、本第1局面の光波長変換部材は、上述した構成を備えているので、後述する実験例からも明らかなように、高い蛍光強度と高い色均質性(即ち色ムラが少ないこと)とを実現することができる。以下、詳細に説明する。
ここで、Zが48%未満であると、透光性不足に伴う蛍光強度の低下が起きる。一方、Zが90%より多いと、透光性が高くなりすぎるために励起光の透過量が多くなり、色ムラが発生する。また、Al2O3結晶粒子同士の連結パスが形成されにくくなり、熱伝導率が低下する。
また、本第1局面の光波長変換部材は、上述した構成によって、高い熱伝導性を有しているので、光源が高出力化された場合でも、熱による影響を抑制すること、例えば光の消失を防ぐことができる。
本第2局面では、A3B5O12:Ce結晶粒子の割合が、5〜50vol%であるので、後述する実験例からも明らかなように、十分な蛍光強度を得られるという利点がある。
本第3局面では、Ceの割合がA3B5O12のAに対し10.0mol%以下(但し0を含まず)であるので、後述する実験例からも明らかなように、十分な蛍光強度を得られるという利点がある。
本第4局面では、Al2O3結晶粒子の平均結晶粒径が0.3〜10μm、A3B5O12:Ce結晶粒子の平均結晶粒径が0.3〜5μmであるので、後述する実験例からも明らかなように、十分な蛍光強度と適度な透光性とが得られるという利点がある。
(5)本発明の第5局面は、第1〜4局面のいずれかの光波長変換部材を備えた発光装置である。
なお、発光装置の発光素子としては、例えばLEDやLDなどの公知の素子を用いることができる。
・前記「光波長変換部材」は、上述した構成を有するセラミックス焼結体であり、各結晶粒子の粒界には、各結晶粒子を構成する成分の一部等や不可避不純物が含まれていてもよい。
・前記「A3B5O12:Ce」とは、A3B5O12中のAの一部にCeが固溶置換していることを示しており、このような構造を有することにより、同化合物は蛍光特性を示すようになる。
・なお、前記X、Y、Zを上記範囲とするには、後述するように、分散剤量や焼成条件を適切な条件とする必要がある。例えば、焼成温度が低すぎるとXが少なくなるため、好ましくない。また、分散剤量が多すぎるとYが少なくなり、少なすぎるとZが多くなるため、適切な条件とする必要がある。
[1.実施形態]
[1−1.光波長変換部材の構成]
まず、実施形態の光波長変換部材について説明する。
図1に示すように、実施形態の光波長変換部材1(図2参照)は、例えば板状のセラミックス焼結体であり、Al2O3結晶粒子と化学式A3B5O12:Ceで表される成分の結晶粒子(以下A3B5O12:Ce結晶粒子と記すこともある)とを主成分とする多結晶体から構成されている。
A:Sc、Y、ランタノイド(Ceは除く)
B:Al、Ga
しかも、セラミックス焼結体の切断面の20μm角の範囲におけるA3B5O12:Ce結晶粒子N個の内、Al2O3結晶粒子内に存在するものの個数をa個、他のA3B5O12:Ce結晶粒子に接することなくAl2O3結晶粒界に存在するものの個数をb個、1個以上の他のA3B5O12:Ce結晶粒子と接しておりAl2O3結晶粒界に存在するものの個数をc個とし、各個数に対する全体の割合a/N、b/N、c/NをそれぞれX、Y、Zとするとき、各割合が下記の範囲を満たしている。
9%≦Y≦45%
48%≦Z≦90%
なお、図1では、a(従ってX)に相当するもの、即ちAl2O3結晶粒子内のA3B5O12:Ce結晶粒子を、Kaで示してある。また、b(従ってY)に相当するもの、即ちAl2O3粒界に単独で存在するA3B5O12:Ce結晶粒子を、Kbで示してある。さらに、c(従ってZ)に相当するもの、即ちAl2O3粒界にて一つ以上のA3B5O12:Ce結晶粒子と接するA3B5O12:Ce結晶粒子を、Kcで示している。
更に、本実施形態においては、Ceの割合がA3B5O12のAに対し10.0mol%以下(但し0を含まず)を採用できる。
[1−2.発光装置の構成]
図2に示すように、発光装置3は、例えばアルミナ等の箱状のセラミック製のパッケージ(容器)5と、容器5の内部に配置された例えばLD等の発光素子7と、容器5の開口部9を覆うように配置された板状の光波長変換部材1とを備えている。
[1−3.効果]
次に、実施形態の効果を説明する。
また、本実施形態の光波長変換部材1は、高い熱伝導性を有しているので、光源が高出力化された場合でも、熱による影響を抑制すること、例えば光の消失を防ぐことができる。
さらに、Ceの割合がA3B5O12のAに対し10.0mol%以下(但し0を含まず)の場合には、十分な蛍光強度を得られるという利点がある。
[2.実施例]
次に、具体的な各実施例について説明する。
下記表1及び表2に示す条件により、No.1〜9のセラミックス焼結体の試料を作製した。なお、各試料のうち、No.1〜9が本発明の範囲内の試料である。
(a)相対密度
得られたセラミックス焼結体の相対密度は、アルキメデス法で密度を測定し、測定した密度を相対密度に換算する方法で算出した。
試料(サンプル)を鏡面研磨後、1300℃で熱エッチングを行った。エッチング面を走査型電子顕微鏡で観察し(即ちSEM観察し)、セラミックス焼結体中の任意の箇所の5000倍の画像を得た。なお、任意の箇所としては、試料が例えば矩形状の板状の場合には、光が透過する部分である厚み方向から見た(平面視で)中心の位置が挙げられる。
(c)粒子個数割合X、Y、Z
前記(b)と同様に、サンプルを鏡面研磨後、1300℃で熱エッチングを行った。エッチング面をSEM観察し、セラミックス焼結体中の任意の箇所の5000倍の画像を得た。画像中の20μm角の中の粒子個数a、b、cを数え、割合X、Y、Zを算出した。同じ処理を任意の5視野について行い、X、Y、Zの平均値を求めた。なお、この研磨後に関する表面が、本発明の切断面に相当する。
13mm角×厚み0.5mmに加工したサンプルに対し、465nmの波長を有する青色LD光をレンズで0.5mm幅まで集光させて照射し、透過した光をレンズによって集光させ、パワーセンサーによりその発光強度を測定した。この時、照射される出力密度は40W/mm2となるようにした。なお、その強度はYAG:Ce単結晶体の強度を100としたときの相対値で評価した。
色ムラ(即ち色バラツキ)は、照度計による色度バラツキ測定によって評価した。20mm角×厚み0.5mmに加工したサンプルに対し、465nmの波長を有する青色LD光をレンズで集光させて0.5mm幅とし、これを照射して反対面から透過してくる光について色彩照度計によって色度を測定した。
10mm角×厚み2mmに加工したサンプルに対し、熱伝導率を測定した。具体的なやり方はJIS R1611に準拠した。
色ムラについては、ΔX<0.02が好ましく、0.02≦ΔX<0.06はやや好ましい、0.06≦ΔXは好ましくないと考えられる。
以下では、本実施例1について、前記評価基準に基づいた評価などについて説明する。
実施例1と同様な製造方法で、下記表1及び表2に示すように、セラミックス焼結体の試料(No.10〜15の試料)を作製して、同様に評価を行った。
なお、各試料のうち、No.11〜14が本発明の範囲内の試料であり、No.10、15が本発明の範囲外(比較例)の試料である。
また、下記表2から明らかなように、X、Y、Zが本発明の範囲内にあるNo.11〜14は、蛍光強度、色ムラ、熱伝導率のいずれも良好な結果となった。一方、Yが少ないNo.10は、Al2O3の平均結晶粒径が11μmとやや粗大になり、蛍光強度がやや低くなり、色ムラが大きくなった。また、Yが多く、更にZが少ないNo.15においては、100を下回る低い蛍光強度となった。
実施例1と同様な製造方法で、下記表1及び表2に示すように、セラミックス焼結体の試料(No.16〜20の試料)を作製して、同様に評価を行った。
なお、各試料のうち、No.16〜19が本発明の範囲内の試料であり、No.20が本発明の範囲外(比較例)の試料である。
実施例1と同様な製造方法で、下記表1及び表2に示すように、セラミックス焼結体の試料(No.21〜28の本発明の範囲の試料)を作製して、同様に評価を行った。
その結果、いずれの試料においても、相対密度は99%以上で十分に緻密化されていた。また、Al2O3の平均結晶粒径は0.3〜10μmの範囲内、A3B5O12:Ce(YAG:Ce)の平均結晶粒径は0.3〜5μmの範囲内にあることが分かった。
実施例1と同様な製造方法で、下記表1及び表2に示すように、セラミックス焼結体の試料(No.29〜38の本発明の範囲の試料)を作製して、同様に評価を行った。
その結果、いずれの試料においても、相対密度は99%以上で十分に緻密化されていた。また、Al2O3の平均結晶粒径は0.3〜10μmの範囲内、A3B5O12:Ce(YAG:Ce)の平均結晶粒径は0.3〜5μmの範囲内にあることが分かった。
実施例1と同様な製造方法で、下記表1及び表2に示すように、セラミックス焼結体の試料(No.39〜59の本発明の範囲の試料)を作製して、同様に評価を行った。
本発明は前記実施形態になんら限定されるものではなく、本発明を逸脱しない範囲において種々の態様で実施しうることはいうまでもない。
(3)なお、上記実施形態における1つの構成要素が有する機能を複数の構成要素に分担させたり、複数の構成要素が有する機能を1つの構成要素に発揮させたりしてもよい。また、上記実施形態の構成の一部を、省略してもよい。また、上記実施形態の構成の少なくとも一部を、他の実施形態の構成に対して付加、置換等してもよい。なお、特許請求の範囲に記載の文言から特定される技術思想に含まれるあらゆる態様が本発明の実施形態である。
3…発光装置
7…発光素子
Claims (5)
- Al2O3結晶粒子と化学式A3B5O12:Ceで表される成分の結晶粒子とを主成分とする多結晶体であるセラミックス焼結体から構成された光波長変換部材であって、
前記A3B5O12中のAとBは下記元素群から選択される少なくとも1種の元素であり、
A:Sc、Y、ランタノイド(Ceは除く)
B:Al、Ga
且つ、前記セラミックス焼結体の切断面の20μm角の範囲における前記A3B5O12:Ce結晶粒子N個の内、前記Al2O3結晶粒子内に存在するものの個数をa個、他の前記A3B5O12:Ce結晶粒子に接することなくAl2O3結晶粒界に存在するものの個数をb個、1個以上の他の前記A3B5O12:Ce結晶粒子と接しており前記Al2O3結晶粒界に存在するものの個数をc個とし、各個数に対する全体の割合a/N、b/N、c/NをそれぞれX、Y、Zとするとき、各割合が下記の範囲を満たすことを特徴とする光波長変換部材。
0%≦X≦25%
9%≦Y≦45%
48%≦Z≦90% - 前記セラミックス焼結体に占める前記A3B5O12:Ce結晶粒子の割合が、5〜50vol%であることを特徴とする請求項1に記載の光波長変換部材。
- 前記Ceの割合が前記A3B5O12のAに対し10.0mol%以下(但し0を含まず)であることを特徴とする請求項1又は2に記載の光波長変換部材。
- 前記Al2O3結晶粒子の平均結晶粒径が0.3〜10μm、前記A3B5O12:Ce結晶粒子の平均結晶粒径が0.3〜5μmであることを特徴とする請求項1〜3のいずれか1項に記載の光波長変換部材。
- 前記請求項1〜4のいずれか1項に記載の光波長変換部材を備えたことを特徴とする発光装置。
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Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4420021B2 (ja) * | 2004-06-24 | 2010-02-24 | 宇部興産株式会社 | 白色発光ダイオード装置 |
JP5490407B2 (ja) | 2005-03-14 | 2014-05-14 | コーニンクレッカ フィリップス エヌ ヴェ | 多結晶セラミック構造の蛍光体、及び前記蛍光体を有する発光素子 |
JP5650885B2 (ja) | 2008-12-27 | 2015-01-07 | 日亜化学工業株式会社 | 波長変換焼結体及びこれを用いた発光装置、並びに波長変換焼結体の製造方法 |
JP5017298B2 (ja) * | 2009-03-11 | 2012-09-05 | 株式会社日本自動車部品総合研究所 | アルミナ質焼結体とその製造方法及びこれを用いた点火プラグ |
CN102449111B (zh) * | 2009-06-01 | 2014-12-24 | 日东电工株式会社 | 发光陶瓷和使用发光陶瓷的发光装置 |
US8283843B2 (en) * | 2010-02-04 | 2012-10-09 | Nitto Denko Corporation | Light emissive ceramic laminate and method of making same |
KR101013146B1 (ko) * | 2010-02-16 | 2011-02-10 | 충남대학교산학협력단 | 이트륨 알루미늄 가넷 황색-발광 형광체의 급속 고상 합성방법 |
KR101425183B1 (ko) * | 2010-03-31 | 2014-07-31 | 우베 고산 가부시키가이샤 | 광변환용 세라믹 복합체, 그 제조방법, 및 그것을 구비한 발광 장치 |
JP5088977B2 (ja) | 2010-08-18 | 2012-12-05 | コバレントマテリアル株式会社 | セラミックス複合体 |
JP5153014B2 (ja) | 2010-09-17 | 2013-02-27 | コバレントマテリアル株式会社 | 緑色蛍光体 |
EP2607449B1 (en) * | 2011-12-22 | 2014-04-02 | Shin-Etsu Chemical Co., Ltd. | Preparation of yttrium-cerium-aluminum garnet phosphor |
JP5740017B2 (ja) | 2012-03-30 | 2015-06-24 | コバレントマテリアル株式会社 | セラミックス複合体 |
JP2013227481A (ja) | 2012-03-30 | 2013-11-07 | Covalent Materials Corp | セラミックス複合体 |
US9550699B2 (en) * | 2013-08-08 | 2017-01-24 | Ngk Spark Plug Co., Ltd. | Ceramic composition and cutting tool |
US10591137B2 (en) * | 2013-09-26 | 2020-03-17 | Osram Sylvania Inc. | Wavelength converter and light-emitting device having same |
MY177277A (en) * | 2014-03-03 | 2020-09-10 | Covalent Mat Corporation | Wavelength converting member |
JP6834491B2 (ja) * | 2015-01-21 | 2021-02-24 | 三菱ケミカル株式会社 | 焼結蛍光体、発光装置、照明装置、車両前照灯、及び焼結蛍光体の製造方法 |
JP6492824B2 (ja) | 2015-03-18 | 2019-04-03 | 宇部興産株式会社 | 光変換用セラミックス複合材料およびその製造方法 |
EP3438229B1 (en) * | 2016-03-29 | 2021-03-10 | Mitsubishi Chemical Corporation | Fluorescent body, light-emitting device, illuminating apparatus, and image display apparatus |
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- 2017-10-18 CN CN201780057362.6A patent/CN109716178B/zh active Active
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US20190198726A1 (en) | 2019-06-27 |
EP3534192B1 (en) | 2021-09-15 |
KR102196577B1 (ko) | 2020-12-30 |
KR20190031531A (ko) | 2019-03-26 |
JP2018077463A (ja) | 2018-05-17 |
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