JP2006257326A - Yb系α−サイアロン蛍光体 - Google Patents
Yb系α−サイアロン蛍光体 Download PDFInfo
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- JP2006257326A JP2006257326A JP2005078789A JP2005078789A JP2006257326A JP 2006257326 A JP2006257326 A JP 2006257326A JP 2005078789 A JP2005078789 A JP 2005078789A JP 2005078789 A JP2005078789 A JP 2005078789A JP 2006257326 A JP2006257326 A JP 2006257326A
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- Prior art keywords
- sialon
- light
- emission
- sialon phosphor
- phosphor
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- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 title claims abstract description 28
- 229910052751 metal Inorganic materials 0.000 claims abstract description 18
- 239000002184 metal Substances 0.000 claims abstract description 18
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 11
- 229910052744 lithium Inorganic materials 0.000 claims abstract description 9
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 9
- 229910052727 yttrium Inorganic materials 0.000 claims abstract description 8
- 239000006104 solid solution Substances 0.000 claims abstract description 6
- 230000005284 excitation Effects 0.000 claims description 10
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 8
- 230000001747 exhibiting effect Effects 0.000 claims description 3
- 150000002602 lanthanoids Chemical class 0.000 claims description 3
- 229910052746 lanthanum Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 239000000243 solution Substances 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 238000000695 excitation spectrum Methods 0.000 description 9
- 238000002284 excitation--emission spectrum Methods 0.000 description 9
- 239000000203 mixture Substances 0.000 description 7
- 238000009877 rendering Methods 0.000 description 7
- 150000002500 ions Chemical class 0.000 description 5
- -1 lanthanide metals Chemical class 0.000 description 5
- 229910052581 Si3N4 Inorganic materials 0.000 description 4
- 229910052791 calcium Inorganic materials 0.000 description 4
- 235000019646 color tone Nutrition 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000002994 raw material Substances 0.000 description 4
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910052769 Ytterbium Inorganic materials 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 229910021645 metal ion Inorganic materials 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000005090 crystal field Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000011812 mixed powder Substances 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
Landscapes
- Luminescent Compositions (AREA)
- Led Device Packages (AREA)
- Led Devices (AREA)
Abstract
【解決手段】一般式Cax(Si,Al)12(O,N)16で表されるα−サイアロンの単一相の格子間にYbや金属(M)(M:Li,Mg,Y,Laを除くランタニド金属)を侵入させた,一般式(YbX、,CaY)(Si,Al)12(O,N)16、あるいは、一般式(Ybx,Mz)(Si,Al)12(O,N)16で表される、Eu系材料より低波長で高輝度発光するα−サイアロン蛍光体。(ただし、固溶量x、y、zは、0.001≦x≦0.1、0.2≦y≦2.0、0.2≦z≦2.0の範囲)
【選択図】 なし
Description
(1) 一般式(YbX、,CaY)(Si,Al)12(O,N)16で示されるα―サイアロンで、 固溶体量が0.001≦x≦0.1、0.2≦y≦2.0の範囲であり、540−555nmの発光を示すYb含有α―サイアロン蛍光体。
(2) 一般式(Ybx,Mz)(Si,Al)12(O,N)16で示されるα―サイアロンで金属MはLi、Mg、Y、およびLaを除くランタニド金属、 0.001≦x≦0.1、0.2≦z≦2.0の範囲であるα―サイアロンで、530−580nmの発光を示すYb含有α―サイアロン蛍光体。
(3) 青色または 近紫外LEDを励起光とし、Eu含有黄色α―サイアロン蛍光体と共に添加して白色LEDを作製する請求項1または2のYb含有α―サイアロン蛍光体。
図1〜図5は、実施例中、実施例2、3、5、7、8で示したYb系α―サイアロンの励起スペクトルと発光スペクトルである。
一般式(YbX,CaY)(Si,Al)12(O,N)16に相当するSi3N4−CaO−Yb2O3−AlN系原料粉末を約5g秤量し、直径15mmの金型で150kg/cm2に加圧して円板状成形体とした。
この成形体を10気圧の窒素中で1800℃に1時間保持した。焼結体を粉砕後、粉末X線回折を測定しα−サイアロンが生成していることを確かめた。この粉末を発光分光測定器で発光スペクトルを測定した。その結果、Ybの濃度と発光波長および発光の相対強度は表1に示す結果が得られた。実施例2と3の励起スペクトルと発光スペクトルはそれぞれ図1、図2に示す結果が得られた。また、Yb濃度を一定(x=0.005)とし、Ca濃度(x)を変化させた場合の値を表2に示す。実施例5の励起スペクトルと発光スペクトルは図3であった。
一般式(Ybx,Mz)(Si,Al)12(O,N)16(MはLi,Mg,Y,ランタニド金属(Laを除く)に相当するSi3N4−CaO−AlN−金属酸化物系原料粉末を約5g秤量し、直径15mmの金型で150kg/cm2に加圧して円板状成形体とした。この成形体を10気圧の窒素中で1800℃に1時間保持した。焼結体を粉砕後、粉末X線回折を測定しα−サイアロンが生成していることを確かめた。この粉末を発光分光測定器で発光スペクトルを測定した。x=0.005、z=0.995の組成における金属の種類と発光特性の関係を表3に示す。
Claims (3)
- 一般式(YbX,CaY)(Si,Al)12(O,N)16で示されるα―サイアロンで、固溶体量が0.001≦x≦0.1、0.2≦y≦2.0の範囲であり、540−555nmの発光を示すYb含有α―サイアロン蛍光体。
- 一般式(Ybx,Mz)(Si,Al)12(O,N)16で示されるα―サイアロンで金属MはLi,Mg,Y,およびLaを除くランタニド金属、0.001≦x≦0.1、0.2≦z≦2.0の範囲であるα―サイアロンで、530−580nmの発光を示すYb含有α―サイアロン蛍光体。
- 青色または 近紫外LEDを励起光とし、Eu含有黄色α―サイアロン蛍光体
と共に添加して白色LEDを作製する請求項1または2のYb含有α―サイアロン蛍光体。
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JP2005078789A JP4724881B2 (ja) | 2005-03-18 | 2005-03-18 | Yb系α−サイアロン蛍光体 |
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JP2005078789A JP4724881B2 (ja) | 2005-03-18 | 2005-03-18 | Yb系α−サイアロン蛍光体 |
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JP2006257326A true JP2006257326A (ja) | 2006-09-28 |
JP4724881B2 JP4724881B2 (ja) | 2011-07-13 |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008132954A1 (ja) * | 2007-04-18 | 2008-11-06 | Mitsubishi Chemical Corporation | 蛍光体及びその製造方法、蛍光体含有組成物、発光装置、照明装置、画像表示装置、並びに窒素含有化合物 |
WO2012157998A2 (ko) * | 2011-05-19 | 2012-11-22 | 삼성전자주식회사 | 형광체, 발광장치, 면광원 장치, 디스플레이 장치 및 조명장치 |
CN104781369A (zh) * | 2012-05-22 | 2015-07-15 | 皇家飞利浦有限公司 | 用于固态照明的诸如新窄带红色发射磷光体的新磷光体 |
EP3006539A4 (en) * | 2013-05-28 | 2017-02-22 | UBE Industries, Ltd. | Oxynitride phosphor powder |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003336059A (ja) * | 2002-05-23 | 2003-11-28 | National Institute For Materials Science | サイアロン系蛍光体 |
-
2005
- 2005-03-18 JP JP2005078789A patent/JP4724881B2/ja active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2003336059A (ja) * | 2002-05-23 | 2003-11-28 | National Institute For Materials Science | サイアロン系蛍光体 |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008132954A1 (ja) * | 2007-04-18 | 2008-11-06 | Mitsubishi Chemical Corporation | 蛍光体及びその製造方法、蛍光体含有組成物、発光装置、照明装置、画像表示装置、並びに窒素含有化合物 |
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 |
US8992797B2 (en) | 2007-04-18 | 2015-03-31 | Mitsubishi Chemical Corporation | Phosphor and production method thereof, phosphor-containing composition, light emitting device, illuminating device, display, and nitrogen-containing compound |
WO2012157998A2 (ko) * | 2011-05-19 | 2012-11-22 | 삼성전자주식회사 | 형광체, 발광장치, 면광원 장치, 디스플레이 장치 및 조명장치 |
WO2012157998A3 (ko) * | 2011-05-19 | 2013-03-21 | 삼성전자주식회사 | 형광체, 발광장치, 면광원 장치, 디스플레이 장치 및 조명장치 |
US9200200B2 (en) | 2011-05-19 | 2015-12-01 | Samsung Electronics Co., Ltd. | Phosphor, light emitting device, surface light source device, display device and illumination device |
KR101772656B1 (ko) | 2011-05-19 | 2017-08-29 | 삼성전자주식회사 | 형광체 및 발광장치 |
CN104781369A (zh) * | 2012-05-22 | 2015-07-15 | 皇家飞利浦有限公司 | 用于固态照明的诸如新窄带红色发射磷光体的新磷光体 |
US9546319B2 (en) | 2012-05-22 | 2017-01-17 | Koninklijke Philips N.V. | Phosphors, such as new narrow-band red emitting phosphors for solid state lighting |
CN104781369B (zh) * | 2012-05-22 | 2017-07-07 | 皇家飞利浦有限公司 | 用于固态照明的诸如新窄带红色发射磷光体的新磷光体 |
EP3006539A4 (en) * | 2013-05-28 | 2017-02-22 | UBE Industries, Ltd. | Oxynitride phosphor powder |
US9777215B2 (en) | 2013-05-28 | 2017-10-03 | Ube Industries, Ltd. | Oxynitride phosphor powder |
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