CN1248282A - 发光材料 - Google Patents

发光材料 Download PDF

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Publication number
CN1248282A
CN1248282A CN98802634A CN98802634A CN1248282A CN 1248282 A CN1248282 A CN 1248282A CN 98802634 A CN98802634 A CN 98802634A CN 98802634 A CN98802634 A CN 98802634A CN 1248282 A CN1248282 A CN 1248282A
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CN
China
Prior art keywords
luminescent material
luminescent
screen
luminescent screen
pressure mercury
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Pending
Application number
CN98802634A
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English (en)
Inventor
T·朱斯特
H·尼科尔
C·R·隆达
J·T·W·德海尔
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Koninklijke Philips NV
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Koninklijke Philips Electronics NV
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Publication date
Application filed by Koninklijke Philips Electronics NV filed Critical Koninklijke Philips Electronics NV
Publication of CN1248282A publication Critical patent/CN1248282A/zh
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/70—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr
    • H01J61/72—Lamps with low-pressure unconstricted discharge having a cold pressure < 400 Torr having a main light-emitting filling of easily vaporisable metal vapour, e.g. mercury
    • 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
    • C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
    • C09K11/667—Borates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J29/00—Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00
    • H01J29/02—Electrodes; Screens; Mounting, supporting, spacing or insulating thereof
    • H01J29/10—Screens on or from which an image or pattern is formed, picked up, converted or stored
    • H01J29/18—Luminescent screens
    • H01J29/20—Luminescent screens characterised by the luminescent material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/30—Vessels; Containers
    • H01J61/302—Vessels; Containers characterised by the material of the vessel
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/38—Devices for influencing the colour or wavelength of the light
    • H01J61/42—Devices for influencing the colour or wavelength of the light by transforming the wavelength of the light by luminescence
    • H01J61/44—Devices characterised by the luminescent material

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  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Luminescent Compositions (AREA)

Abstract

本发明涉及一种通式为(BaxSr1－x－yPby)2Mg(BO3)2的发光材料,其中,0≤x≤0.999,0.0005≤y≤0.05。具有这种通式的发光材料非常适用于以制鞣革为目的的低压汞放电灯。本发明也涉及一种制备该发光材料的方法。

Description

发光材料
本发明涉及一种发光材料，一种发光屏和一种包含该发光屏的低压汞灯。本发明也涉及一种制备这种发光材料的方法。
在美国专利4,703,224中公开了一种用于鞣革的低压汞放电灯，该灯装有一种除了包含UV-B磷光体之外还含有Sr2P2O7：Eu2+和Ba2P2O7：Eu2+作为UV-A磷光体的发光屏。该发光屏组合物使低压汞放电灯(另外也被称为灯)能在紫外区域模拟太阳光谱。但是，所用发光材料的一个缺点是它们都对波长为280nm～350nm的辐射有相对较强的吸收。结果，发光屏所产生的短波辐射相对较大程度地被再吸收，并且被转换成长波辐射。被发光屏再吸收的短波辐射的量是其厚度的一个非常重要的函数。因此，灯容器上发光屏的厚度变化使灯容器表面不同方位所发射的光的光谱之间有相对较大的差别。
本发明的目的在于提供一种对短波辐射吸收较低，发射主要位于光谱的UV-A区域的发光材料，因此该发光材料非常适用于以制鞣革为目的的低压汞放电灯发光屏。
根据本发明，发光材料的通式为
        (BaxSr1-x-yPby)2Mg(BO3)2
其中，0≤x≤0.999，0.0005≤y≤0.05。
我们已经发现，本发明的发光材料的主要发射位于370nm～390nm，并且对280nm～350nm的辐射只有相对较少量的吸收。如果本发明的发光材料中Sr的含量增加，那么发射带的最大值就向更短波长移动，从而使280nm～350nm辐射的吸收量更少。表1列出了发射峰值EM，半峰值处的总宽度FWHM，以及当y＝0.005时，对应于不同的x值，本发明发光材料的吸收系数AQ254。表2列出了发射峰值EM，半峰值处的总宽度FWHM，吸收系数AQ254和当发光材料不含Sr时，对应于不同的y值，本发明发光材料的量子效率QE。
我们已经发现，如果发光屏除了包含本发明的发光材料之外，还包含例如被铈激活的磷酸镧和被铅激活的硅酸钡，那么装有该发光屏的低压汞放电灯就能够很贴切地模拟太阳光的紫外光谱。
根据本发明，可以通过一种包含下列步骤的方法来制备发光材料：
-混合BaCO3，SrCO3，MgO，H3BO3和PbO；
-在一种含氧气氛中加热得到的混合物，和；
-研磨所得到的材料。
优选重复本方法的最后两个步骤。已经发现，如果在900℃的条件下加热就可以得到好的结果。
在一个典型实施例中，一种不含Sr的发光材料是通过在一个玛瑙研钵中混合BaCO3，MgO，H3BO3和PbO来制备的。接着在一种含氧气氛下加热该混合物，并且进行研磨。重复该制备方法的最后两个步骤，并且将所得到的发光材料保存在一个干燥器中。
                         表1
    x    EM(nm)    FWHM(nm)    AQ254(％)
    1.0     380     53     83
    0.75     375     59     94
    0.5     362     62     93
    0.25     346     77     88
    0.0     340     57     85
                              表2
     y   EM(nm)  FWHM(nm)    QE(％)   AQ254(％)
    0.005     380     53     63     80
    0.01     380     53     60     83
    0.02     380     53     50     90

Claims (6)

1.具有下列通式的发光材料
       (BaxSr1-x-yPby)2Mg(BO3)2
其中，0≤x≤0.999，0.0005≤y≤0.05。
2.包含一种装有发光材料的载体的发光屏，其特征在于该发光屏包含权利要求1所述的一种发光材料。
3.装有一种权利要求2所述的发光屏的低压汞放电灯。
4.权利要求1-5所述的一种发光材料的制备方法，该方法包括下列步骤：
-混合BaCO3，SrCO3，MgO，H3BO3和PbO；
-在一种含氧气氛中加热得到的混合物，和；
-研磨所得到的材料。
5.根据权利要求4的方法，其中重复该方法的最后两个步骤。
6.根据权利要求4或5的方法，其中在900℃的条件下加热。
CN98802634A 1997-12-19 1998-12-03 发光材料 Pending CN1248282A (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP97204031.5 1997-12-19
EP97204031 1997-12-19
EP98202063 1998-06-22
EP98202063.8 1998-06-22

Publications (1)

Publication Number Publication Date
CN1248282A true CN1248282A (zh) 2000-03-22

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ID=26147182

Family Applications (1)

Application Number Title Priority Date Filing Date
CN98802634A Pending CN1248282A (zh) 1997-12-19 1998-12-03 发光材料

Country Status (5)

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US (1) US6184618B1 (zh)
EP (1) EP0970160A1 (zh)
JP (1) JP2001512528A (zh)
CN (1) CN1248282A (zh)
WO (1) WO1999032575A1 (zh)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19852524A1 (de) * 1998-11-06 2000-05-18 Spectrometrix Optoelectronic S Bestrahlungseinrichtung für therapeutische und kosmetische Zwecke
US7306856B2 (en) * 2000-07-17 2007-12-11 Fujifilm Corporation Light-emitting element and iridium complex
ATE482476T1 (de) * 2000-07-17 2010-10-15 Fujifilm Corp Lichtemittierendes element und azolverbindung
JP3755390B2 (ja) * 2000-09-08 2006-03-15 株式会社日立製作所 蛍光体及びそれを用いた表示装置並びに光源
DE10231257A1 (de) * 2002-07-11 2004-01-22 Philips Intellectual Property & Standards Gmbh Bräunungsvorrichtung

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4703224A (en) * 1985-01-07 1987-10-27 Gte Products Corporation Fluorescent lamp substantially approximating the ultraviolet spectrum of natural sunlight
US5166456A (en) * 1985-12-16 1992-11-24 Kasei Optonix, Ltd. Luminescent phosphor composition
DE3729711A1 (de) * 1987-09-04 1989-03-23 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh Quecksilberniederdruckentladungslampe zur uv-bestrahlung

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Publication number Publication date
EP0970160A1 (en) 2000-01-12
JP2001512528A (ja) 2001-08-21
US6184618B1 (en) 2001-02-06
WO1999032575A1 (en) 1999-07-01

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