EP2938699A1 - Gelbgrüne bis gelbe leuchtstoffe auf basis terbiumhaltiger aluminate - Google Patents

Gelbgrüne bis gelbe leuchtstoffe auf basis terbiumhaltiger aluminate

Info

Publication number
EP2938699A1
EP2938699A1 EP12890913.2A EP12890913A EP2938699A1 EP 2938699 A1 EP2938699 A1 EP 2938699A1 EP 12890913 A EP12890913 A EP 12890913A EP 2938699 A1 EP2938699 A1 EP 2938699A1
Authority
EP
European Patent Office
Prior art keywords
yellow
green
phosphor
emitting
aluminate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP12890913.2A
Other languages
English (en)
French (fr)
Other versions
EP2938699A4 (de
Inventor
Chengjun DUAN
Yi-Qun Li
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Intematix Corp
Original Assignee
Intematix Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Intematix Corp filed Critical Intematix Corp
Publication of EP2938699A1 publication Critical patent/EP2938699A1/de
Publication of EP2938699A4 publication Critical patent/EP2938699A4/de
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
    • C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B33/00—Electroluminescent light sources
    • H05B33/12—Light sources with substantially two-dimensional radiating surfaces
    • H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source

Definitions

  • FIG.3 shows the x-ray diffraction (XRD) pattern of a series of exemplary phosphors in an analogous manner to FIG. 2, except that this time the series of compounds are Lu2.9i Ceo o9Alf O i 2 phosphors with different MgF 2 additive concentrations, where lutetium-based compounds are being studied, rather than yttrium-based compounds.
  • XRD x-ray diffraction
  • FIG. 7 is the emission spectra of a series of exemplary Lu 2 . i Ceo.o9Al50i2 phosphors with different levels of MgF 2 additive, the emission spectra obtained by exciting the phosphor with a blue LED.
  • This data is analogous to that of FIG. 5, except that lutetium-based rather than yttrium-based compounds are being studied. As with the yttrium data, this data for lutetium shows similar trends for the shift in emission wavelength, though those trends for photoluminescent intensity are not, perhaps, as similar.
  • the thermal stability of the present garnet phosphors is exemplified by the lutetium containing compound ⁇ iCecosAlsO with a 5wt% MgF 2 additive; its thermal stability is compared with the commercially available phosphor Ce 3+ :Y3Al50i2 in FIG. 12. It may be observed that the thermal stability of the Lu2.9iCeo 0 9Al50
  • a green emission will be defined as having a peak emission wavelength of from about 500 nm to about 550 nm. Emissions extending from about 550 nm to about 600 nm may be described as containing wavelengths that change from a yellow- green color to a yellow color.
  • the addition of Gd doping converts the phosphor from a substantially green-emitting sample to a substantially yellow sample in the experiments described; though not shown, increasing the Gd concentration even further (from about 0.33 for Ba samples and from about 0.13 for Sr samples) shifts the emission further towards and into the yellow region of the electromagnetic spectrum.
  • the third composition from the top in Table 4 contains both Gd and Tb in concentrations of 0.2 and 0.3, respectively, and thus its stoichiometry is (Luo 4
  • This compound, with the designation TG I emitted with a peak emission wavelength that was almost as high as (Luo xiTbo sCeo o ⁇ lsO ⁇ (555.4 nm versus 555.8 nm, respectively), although its photoluminescent intensity was not as high as either of the two compounds containing Tb only and no Gd.
  • the phosphor may comprise a cerium- activated, yellow-green to yellow-emitting aluminate-based phosphor having the formula (Lu] .
  • the phosphor comprises a cerium- activated, yellow-green to yellow-emitting aluminate-based phosphor having the formula (Lui. x A x ) 3 Al50i2:Ce, where A is at least one rare earth selected from the group consisting of Gd and Tb, either individually or in combinations; x ranges from about 0.001 to about 1.0; and the phosphor contains at least some Tb.
  • the phosphor comprises a cerium- activated, yellow-green to yellow-emitting aluminate-based phosphor represented by the formula (Luo.9].
  • the nitride may be at least one of (Ca,Sr)AISiN 3 :Eu 2+ , (Ca,Sr) 2 N 5 N 8 :Eu 2+ , and (Ca,Sr)AlSi 4 N 7 :Eu 2+ .
  • the green-emitting phosphor may be a silicate.
  • the silicate may have the formula (Sr,Ba, g) 2 Si0 4 :Eu 2+ .

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)
  • Led Device Packages (AREA)
EP12890913.2A 2012-12-28 2012-12-28 Gelbgrüne bis gelbe leuchtstoffe auf basis terbiumhaltiger aluminate Withdrawn EP2938699A4 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2012/087751 WO2014101073A1 (en) 2012-12-28 2012-12-28 Yellow-green to yellow-emitting phosphors based on terbium-containing aluminates

Publications (2)

Publication Number Publication Date
EP2938699A1 true EP2938699A1 (de) 2015-11-04
EP2938699A4 EP2938699A4 (de) 2016-08-24

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP12890913.2A Withdrawn EP2938699A4 (de) 2012-12-28 2012-12-28 Gelbgrüne bis gelbe leuchtstoffe auf basis terbiumhaltiger aluminate

Country Status (6)

Country Link
EP (1) EP2938699A4 (de)
JP (1) JP2016508174A (de)
KR (1) KR20150100724A (de)
CN (1) CN104870607A (de)
TW (1) TW201432026A (de)
WO (1) WO2014101073A1 (de)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5620562B1 (ja) * 2013-10-23 2014-11-05 株式会社光波 単結晶蛍光体及び発光装置
TWI509051B (zh) * 2014-08-25 2015-11-21 Cheng En Material Tech Co Ltd 螢光粉、其製造方法、及發光裝置
CN105623661A (zh) * 2014-10-29 2016-06-01 大连利德照明研发中心有限公司 荧光材料及其制造方法和包含该荧光材料的组合物
CN104893724B (zh) * 2015-04-27 2017-10-27 济南大学 一种新型石榴石基高效黄色荧光粉
CN105038796A (zh) * 2015-04-27 2015-11-11 济南大学 一种新型石榴石基光色可控荧光粉
US10066160B2 (en) 2015-05-01 2018-09-04 Intematix Corporation Solid-state white light generating lighting arrangements including photoluminescence wavelength conversion components
CN105297136A (zh) * 2015-11-13 2016-02-03 孙雷 激光照明用掺铈铝酸钆镥石榴石晶体及其制备方法
CN106590657B (zh) * 2016-11-25 2019-01-29 河北利福光电技术有限公司 一种镥铝酸盐绿色荧光粉及其制备方法和应用
CN111995397A (zh) * 2020-08-14 2020-11-27 中国科学院宁波材料技术与工程研究所 一种荧光陶瓷及其制备方法与应用
CN115490518A (zh) * 2022-10-17 2022-12-20 闽都创新实验室 一种Ce过量掺杂的磁光透明陶瓷及其制备方法和应用

Family Cites Families (11)

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Publication number Priority date Publication date Assignee Title
EP1378556A3 (de) * 1999-07-23 2004-01-28 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Leuchtstoff insbesondere für Lichtquellen und zugehörige Lichtquelle
US7008558B2 (en) * 2001-10-11 2006-03-07 General Electric Company Terbium or lutetium containing scintillator compositions having increased resistance to radiation damage
JP4269880B2 (ja) * 2003-10-17 2009-05-27 日亜化学工業株式会社 蛍光ランプ及び蛍光ランプ用蛍光体
US7560046B2 (en) * 2005-12-22 2009-07-14 General Electric Company Scintillator material and radiation detectors containing same
US8133461B2 (en) * 2006-10-20 2012-03-13 Intematix Corporation Nano-YAG:Ce phosphor compositions and their methods of preparation
CN101182416B (zh) * 2006-11-13 2010-09-22 北京有色金属研究总院 含二价金属元素的铝酸盐荧光粉及制造方法和发光器件
JP5399617B2 (ja) * 2007-05-14 2014-01-29 デクセリアルズ株式会社 発光組成物及びこれを用いた光源装置並びにこれを用いた表示装置
JP2013516075A (ja) * 2009-12-31 2013-05-09 オーシャンズ キング ライティング サイエンスアンドテクノロジー カンパニー リミテッド 紫色ｌｅｄを用いた白色発光装置
JP5323131B2 (ja) * 2010-06-09 2013-10-23 信越化学工業株式会社 蛍光粒子及び発光ダイオード並びにこれらを用いた照明装置及び液晶パネル用バックライト装置
TWI448536B (zh) * 2011-03-08 2014-08-11 Intematix Corp 以鹵化鋁酸鹽為主之黃－綠至黃發光磷光體
CN102723422B (zh) * 2011-12-31 2015-04-29 深圳市光峰光电技术有限公司 波长转换装置和发光装置

Also Published As

Publication number Publication date
WO2014101073A1 (en) 2014-07-03
CN104870607A (zh) 2015-08-26
JP2016508174A (ja) 2016-03-17
KR20150100724A (ko) 2015-09-02
TW201432026A (zh) 2014-08-16
EP2938699A4 (de) 2016-08-24

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