JP2005232436A - 希土類及び第iiib族金属の酸化物を含む改善したユーロピウム活性化蛍光体及びそれを作る方法 - Google Patents
希土類及び第iiib族金属の酸化物を含む改善したユーロピウム活性化蛍光体及びそれを作る方法 Download PDFInfo
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- 229910052693 Europium Inorganic materials 0.000 title claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 title abstract description 21
- 239000002184 metal Substances 0.000 title abstract description 21
- -1 europium-activated phosphor Chemical class 0.000 title abstract description 5
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000000203 mixture Substances 0.000 claims abstract description 48
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 claims abstract description 33
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 7
- 229910052688 Gadolinium Inorganic materials 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 16
- 230000005284 excitation Effects 0.000 claims description 10
- 238000010586 diagram Methods 0.000 claims description 5
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- 150000002910 rare earth metals Chemical class 0.000 abstract description 17
- 150000002739 metals Chemical class 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 6
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- 238000000034 method Methods 0.000 abstract description 5
- 239000001301 oxygen Substances 0.000 abstract description 5
- 229910052760 oxygen Inorganic materials 0.000 abstract description 5
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- 229910052727 yttrium Inorganic materials 0.000 abstract description 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 abstract description 4
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- 239000004411 aluminium Substances 0.000 abstract 1
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- 150000004706 metal oxides Chemical class 0.000 description 3
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- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 2
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- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
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- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 1
- XTEGARKTQYYJKE-UHFFFAOYSA-M Chlorate Chemical class [O-]Cl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-M 0.000 description 1
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical class OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
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- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- IGHMMCAZYAYZJI-UHFFFAOYSA-N [O-2].[Al+3].P.[Gd+3] Chemical compound [O-2].[Al+3].P.[Gd+3] IGHMMCAZYAYZJI-UHFFFAOYSA-N 0.000 description 1
- MDPBAVVOGPXYKN-UHFFFAOYSA-N [Y].[Gd] Chemical compound [Y].[Gd] MDPBAVVOGPXYKN-UHFFFAOYSA-N 0.000 description 1
- ITBPIKUGMIZTJR-UHFFFAOYSA-N [bis(hydroxymethyl)amino]methanol Chemical compound OCN(CO)CO ITBPIKUGMIZTJR-UHFFFAOYSA-N 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
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- 239000002253 acid Substances 0.000 description 1
- 150000004703 alkoxides Chemical class 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000001099 ammonium carbonate Substances 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 150000003868 ammonium compounds Chemical class 0.000 description 1
- VBIXEXWLHSRNKB-UHFFFAOYSA-N ammonium oxalate Chemical compound [NH4+].[NH4+].[O-]C(=O)C([O-])=O VBIXEXWLHSRNKB-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 159000000032 aromatic acids Chemical class 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 150000001860 citric acid derivatives Chemical class 0.000 description 1
- 210000001072 colon Anatomy 0.000 description 1
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- 238000001514 detection method Methods 0.000 description 1
- 150000001991 dicarboxylic acids Chemical class 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 230000005670 electromagnetic radiation Effects 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001307 helium Substances 0.000 description 1
- 229910052734 helium Inorganic materials 0.000 description 1
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 229910052743 krypton Inorganic materials 0.000 description 1
- DNNSSWSSYDEUBZ-UHFFFAOYSA-N krypton atom Chemical compound [Kr] DNNSSWSSYDEUBZ-UHFFFAOYSA-N 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- XMYQHJDBLRZMLW-UHFFFAOYSA-N methanolamine Chemical compound NCO XMYQHJDBLRZMLW-UHFFFAOYSA-N 0.000 description 1
- 229940087646 methanolamine Drugs 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 150000007530 organic bases Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical class OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
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- 150000003467 sulfuric acid derivatives Chemical class 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
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Abstract
【解決手段】 ユーロピウム活性化蛍光体は、ガドリニウム、イットリウム、ランタン及びその組合せからなる群から選択された少なくとも希土類金属と、アルミニウム、ガリウム、インジウム及びその組合せからなる群から選択された少なくとも第IIIB族金属との酸化物を含む。そのような蛍光体を作る方法は、選択した第IIIB族金属の少なくとも1つの少なくともハロゲン化合物を出発混合物内に加える段階を含む。本方法はさらに、酸素含有雰囲気中で出発混合物を焼成する段階を含む。このような方法によって製造された蛍光体は、UV波長域における改善した吸収性と改善した量子効率とを示す。
【選択図】 図4
Description
「Encyclopedia of Physical Science and Technology」の第7巻、230〜231頁(Robert A. Meyers編、1987年)
実施例
Gd2O3(37.11g)、Eu2O3(1.90g)、Al2O3(9.89g)、及びAlF3(1.81g)の量を、ZrO2媒質を用いて約4時間の間密に混合した。このAlF3の量により、全アルミニウムは10原子パーセントとなった。この混合物を、箱形炉のアルミナ製るつぼ内で1250℃において5時間空気中で焼成した。蛍光体は、Gd0.95Eu0.05AlO3の化学式を有していた。この蛍光体は、標準的な蛍光体(Y2O3:Eu3+)の量子効率の約85〜90パーセントの量子効率又は約75〜80パーセントの絶対量子効率と、254nmにおける励起放射線の85パーセントの吸収性とを示した。比較すると、AlF3がない状態での同じ化学式を有する蛍光体は、標準的な蛍光体の約70パーセントの量子効率と254nmにおける励起放射線の約70パーセントの吸収性とを示した。
白色発光装置
本発明の蛍光体及び他の蛍光体を含む選択したブレンドを250〜300nmの波長域のUV線を生成する水銀放電ランプのようなガス放電装置に組み入れることにより、電気的エネルギを効率的に用いる白色光源が得られる。例えば、蛍光体ブレンドは、約4マイクロメートル以下、好ましくは約2マイクロメートル以下の粒径にミル加工又は粉砕することができる。次に、従来の方法でなされるように、放電ランプ管の内面に蛍光体ブレンドを施工する。光散乱粒子を蛍光体ブレンドに添加して、光抽出を改善し及び/又は吸収されないUV線の不要の漏れを減少させることができる。ブレンド内の蛍光体の個々の量を調整することによって、発光装置のCCTが調整される。例えば、400nm〜520nmの範囲のピーク発光を有する蛍光体の量を増加させることによって、高いCCTが得られる。一方、本発明の蛍光体の量を増加させることによって、「より暖かい感じの」光を生成することになる低いCCTが得られる。
Claims (11)
- (Gd1−x−yYxLay)(Al1−z−vGazInv)O3:Eu3+の化学式を有し、ここで、0≦x,y≦1、0≦x+y≦1、0≦z<1の場合0<v<1及び0≦v<1の場合0<z<1の前提でz及びvの各々が1未満、かつ1−z−vとzとvとの少なくとも2つがゼロよりも大である化合物を含み、UV線を吸収しかつ約580nm〜約770nmの可視波長域で発光することができるユーロピウム活性化酸化物蛍光体であって、ユーロピウムが約0.0005〜約20モルパーセントの量で存在し、該蛍光体が約254nmの波長における励起UV線の少なくとも80パーセントを吸収することができる、蛍光体。
- 前記ユーロピウムが約0.0005〜約10モルパーセントの量で存在する、請求項1記載の蛍光体。
- 前記ユーロピウムが約0.001〜約5モルパーセントの量で存在する、請求項1記載の蛍光体。
- 三価ユーロピウム活性化酸化物蛍光体を含む蛍光体ブレンドであって、前記三価ユーロピウム活性化酸化物蛍光体が、(Gd1−x−yYxLay)(Al1−z−vGazInv)O3:Eu3+の化学式を有し、ここで、0≦x,y≦1、0≦x+y≦1、0≦z<1の場合0<v<1及び0≦v<1の場合0<z<1の前提でz及びvの各々が1未満、かつ1−z−vとzとvとの少なくとも2つがゼロよりも大である化合物を含み、該蛍光体ブレンドが、約250nm〜約400nmの波長域におけるEM放射線を実質的に吸収する、蛍光体ブレンド。
- 前記ユーロピウムが約0.0005〜約10モルパーセントの量で存在する、請求項4記載の蛍光体ブレンド。
- 前記ユーロピウムが約0.001〜約5モルパーセントの量で存在する、請求項4記載の蛍光体ブレンド。
- 該蛍光体ブレンドが、約580nm〜約770nmの範囲以外の可視波長域で実質的に発光する少なくとも1つの別の蛍光体をさらに含む、請求項4記載の蛍光体ブレンド。
- 該蛍光体ブレンドが、UVEM放射線によって励起されると白色光を発光する、請求項4記載の蛍光体ブレンド。
- 前記白色光が、CIE色度図の黒体軌跡上に実質的に色座標を有する、請求項4記載の蛍光体ブレンド。
- (a)ガス放電源と、
(b)(Gd1−x−yYxLay)(Al1−z−vGazInv)O3:Eu3+の化学式を有し、ここで、0≦x,y≦1、0≦x+y≦1、0≦z<1の場合0<v<1及び0≦v<1の場合0<z<1の前提でz及びvの各々が1未満、かつ1−z−vとzとvとの少なくとも2つがゼロよりも大である化合物を含む三価ユーロピウム活性化酸化物蛍光体を含み、約250nm〜約400nmの波長域における前記ガス放電からのEM放射線を吸収しかつ可視域の光を発光する蛍光体ブレンドと、
を含む光源。 - 前記蛍光体ブレンドが、
BaMgAl10O17:Eu2+、Sr5(PO4)3Cl:Eu2+、Sr4Al14O25:Eu2+、Sr3(PO4)5Cl:Eu2+、Sr2Al6O11:Eu2+及びその混合物と、
CeMgAl11O17:Tb3+、(Ce,La)PO4:Tb3+、(Ce,Gd)MgB5O10:Tb3+、LaPO4:Ce3+,Tb3+及びその混合物と、
Y2O3:Eu3+、YBO3:Eu3+、3.5MgO・0.5MgF2・GeO2:Mn4+及びその混合物と、
からなる群の1つから選択された少なくとも付加的な蛍光体をさらに含む、
請求項8記載の光源。
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US10/779,086 US7022263B2 (en) | 2002-06-12 | 2004-02-17 | Europium-activated phosphors containing oxides of rare-earth and group-IIIB metals and method of making the same |
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JP2010050085A (ja) * | 2008-06-11 | 2010-03-04 | General Electric Co <Ge> | 高criランプ用蛍光体 |
JP2014503645A (ja) * | 2010-12-20 | 2014-02-13 | ▲海▼洋王照明科技股▲ふん▼有限公司 | インジウム・ガリウム酸化物発光材料、及びその製造方法 |
JP2017113748A (ja) * | 2015-12-09 | 2017-06-29 | ゼネラル・エレクトリック・カンパニイ | 皮膜の検査方法 |
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US7959827B2 (en) * | 2007-12-12 | 2011-06-14 | General Electric Company | Persistent phosphor |
US7708968B2 (en) * | 2007-03-26 | 2010-05-04 | General Electric Company | Nano-scale metal oxide, oxyhalide and oxysulfide scintillation materials and methods for making same |
US7625502B2 (en) * | 2007-03-26 | 2009-12-01 | General Electric Company | Nano-scale metal halide scintillation materials and methods for making same |
US7608829B2 (en) * | 2007-03-26 | 2009-10-27 | General Electric Company | Polymeric composite scintillators and method for making same |
CN101802130B (zh) * | 2007-09-14 | 2013-07-17 | 奥斯兰姆施尔凡尼亚公司 | 用于紧凑型荧光灯的磷光体混合物及含该混合物的灯 |
US8137586B2 (en) | 2007-09-14 | 2012-03-20 | Osram Sylvania Inc. | Phosphor blend for a compact fluorescent lamp and lamp containing same |
US8545723B2 (en) * | 2007-12-12 | 2013-10-01 | General Electric Company | Persistent phosphor |
JP4803171B2 (ja) * | 2007-12-25 | 2011-10-26 | 株式会社デンソー | 金属水酸化物粒子の製造方法 |
US8329060B2 (en) | 2008-10-22 | 2012-12-11 | General Electric Company | Blue-green and green phosphors for lighting applications |
US8703016B2 (en) | 2008-10-22 | 2014-04-22 | General Electric Company | Phosphor materials and related devices |
DE102011076038A1 (de) | 2011-05-18 | 2012-11-22 | Osram Ag | Verfahren zur Rückgewinnung von Phosphorsäure aus Leuchtstofflampen |
CN105814171A (zh) * | 2013-12-04 | 2016-07-27 | 默克专利有限公司 | Eu2+激活的发光材料 |
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NL6610829A (ja) | 1966-08-02 | 1968-02-05 | ||
JPS5710678A (en) | 1980-06-21 | 1982-01-20 | Matsushita Electric Works Ltd | Fluorescent substance |
JPS57180687A (en) | 1981-04-30 | 1982-11-06 | Matsushita Electric Works Ltd | Phosphor |
JPS6112785A (ja) | 1984-06-28 | 1986-01-21 | Toshiba Corp | 赤色発光螢光体 |
US6048469A (en) | 1997-02-26 | 2000-04-11 | The Regents Of The University Of California | Advanced phosphors |
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Cited By (5)
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JP2010050085A (ja) * | 2008-06-11 | 2010-03-04 | General Electric Co <Ge> | 高criランプ用蛍光体 |
JP2014503645A (ja) * | 2010-12-20 | 2014-02-13 | ▲海▼洋王照明科技股▲ふん▼有限公司 | インジウム・ガリウム酸化物発光材料、及びその製造方法 |
US9068118B2 (en) | 2010-12-20 | 2015-06-30 | Ocean's King Lighting Science & Technology Co., Ltd. | Luminescent material of gallium indium oxide and preparation method thereof |
JP2017113748A (ja) * | 2015-12-09 | 2017-06-29 | ゼネラル・エレクトリック・カンパニイ | 皮膜の検査方法 |
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