WO2011009238A1 - 硼酸盐发光玻璃及其制备方法 - Google Patents

硼酸盐发光玻璃及其制备方法 Download PDF

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Publication number
WO2011009238A1
WO2011009238A1 PCT/CN2009/072891 CN2009072891W WO2011009238A1 WO 2011009238 A1 WO2011009238 A1 WO 2011009238A1 CN 2009072891 W CN2009072891 W CN 2009072891W WO 2011009238 A1 WO2011009238 A1 WO 2011009238A1
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Prior art keywords
glass
luminescent glass
borate luminescent
borate
ranges
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French (fr)
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周明杰
李清涛
马文波
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Oceans King Lighting Science and Technology Co Ltd
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Oceans King Lighting Science and Technology Co Ltd
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Priority to CN2009801598128A priority Critical patent/CN102510841B/zh
Priority to EP09847473.7A priority patent/EP2457883B1/en
Priority to JP2012520883A priority patent/JP5390706B2/ja
Priority to PCT/CN2009/072891 priority patent/WO2011009238A1/zh
Priority to US13/386,656 priority patent/US20120126172A1/en
Publication of WO2011009238A1 publication Critical patent/WO2011009238A1/zh
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    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C4/00Compositions for glass with special properties
    • C03C4/12Compositions for glass with special properties for luminescent glass; for fluorescent glass
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/04Glass compositions containing silica
    • C03C3/062Glass compositions containing silica with less than 40% silica by weight
    • C03C3/064Glass compositions containing silica with less than 40% silica by weight containing boron
    • C03C3/068Glass compositions containing silica with less than 40% silica by weight containing boron containing rare earths
    • CCHEMISTRY; METALLURGY
    • C03GLASS; MINERAL OR SLAG WOOL
    • C03CCHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00Glass compositions
    • C03C3/12Silica-free oxide glass compositions
    • C03C3/14Silica-free oxide glass compositions containing boron
    • C03C3/15Silica-free oxide glass compositions containing boron containing rare earths
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K11/00Luminescent materials, e.g. electroluminescent or chemiluminescent
    • C09K11/08Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials
    • C09K11/77Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing rare earth metals
    • C09K11/7766Luminescent materials, e.g. electroluminescent or chemiluminescent containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
    • C09K11/778Borates

Definitions

  • This invention relates to luminescent materials and, more particularly, to a borate luminescent glass and a method of making same. Background technique
  • the luminescent materials used are mainly phosphors.
  • the fluorescent materials used in current field emission devices are mainly sulfide series, oxide series and sulfur oxide series phosphors used in conventional cathode ray tubes and projection television tubes.
  • the luminescence brightness is high and has certain conductivity, but it is easily decomposed under the bombardment of large beam cathode rays, releasing the elemental sulfur "poisoning" cathode tip, and generating other The precipitate covers the surface of the phosphor, which reduces the luminous efficiency of the phosphor and shortens the service life of the field emission device.
  • borate luminescent glass As a new type of optical glass, borate luminescent glass has attracted more and more attention in the field of optoelectronics such as laser, optical communication and optical amplifier due to its good light transmittance.
  • optoelectronics such as laser, optical communication and optical amplifier due to its good light transmittance.
  • the luminescence intensity is relatively weak, the uniformity is poor, and the stability is insufficient. Summary of the invention
  • the technical problem to be solved by the present invention is to provide a high luminous intensity, good uniformity and stability for the defects of the prior art borate luminescent glass which have weak luminous intensity, poor uniformity and insufficient stability. Borate luminescent glass.
  • the technical solution adopted by the present invention to solve the technical problems thereof is: Constructing a borate luminescent glass containing a substance of the following chemical formula: aM 2 0 -bY 2 0 3 -cAl 2 0 3 -d B 2 0 3 -eSi0 2 -xCe0 2 -y
  • Tb 2 0 3 wherein M is at least one selected from the group consisting of Na, K, and Li, and a, b, c, d, e, x, and y are mole fractions, and their ranges are: a is 0 ⁇ 20, b is 7 ⁇ 15, c is 20 ⁇ 40, d is 40 ⁇ 60, e is 0-15, x is 0.1 ⁇ 1.5, and y is 0.1 ⁇ 3.
  • the ranges of a, b, c, d, e, x, y are: a is 0 to 15, b is 7 to 12, and c is 24 ⁇ 37, d is 40 ⁇ 55, e is 0 ⁇ 10, x 3 ⁇ 4 0.3-1.2, y is 0.3 ⁇ 1.5.
  • the ranges of a, b, c, d, e, x, y are: a is 4.5-10.5, b is 7.5-8, and c is 26.25. -36, d is 42-52, e is 0-6, x is 0.5-0.8, and y is 0.4 ⁇ 0.8.
  • the borate luminescent glass of the present invention can be excited by ultraviolet light having a wavelength ranging from 330 to 380 nm.
  • the excitation wavelength range of the borate luminescent glass is 330 to 380 nm
  • the emission wavelength range is 530-560 nm
  • the emission dominant wavelength is under the excitation of ultraviolet light having a wavelength of 366 nm. 544nm.
  • Another technical solution adopted by the present invention to solve the technical problem is to construct a method for preparing a borate luminescent glass, comprising:
  • the glass raw material is weighed according to the molar fraction of each element in the chemical formula aM 2 0 ⁇ bY 2 0 3 ⁇ cAl 2 0 3 ⁇ d B 2 0 3 ⁇ eSi0 2 ⁇ xCe0 2 ⁇ y Tb 2 0 3 , where M At least one selected from the group consisting of Na, K, and Li, a, b, c, d, e, x, and y are mole fractions, and their ranges are: a is 0-20, b is 7-15 , c is 20 ⁇ 40, d is 40 ⁇ 60, e is 0 ⁇ 15, x is 0.1 ⁇ 1.5, y is 0.1 ⁇ 3;
  • the cooled shaped glass is heat treated to form the borate luminescent glass.
  • the melting temperature ranges from 1580 to 1750 ° C; the glass raw material is melted at 1580 to 1750 ° C, kept for 30 minutes, and then cooled and molded.
  • the heat treatment is specifically: heating the glass to a temperature of 650 to 900 ° C in a reducing environment, holding the glass for 4 to 12 hours, and then cooling to room temperature to prepare the borate luminescent glass.
  • the molar fractions a, b, c, d, e, x, y are respectively in the range of a: 0 to 20, b is 7 ⁇ 15, c is 20 ⁇ 40, d is 40 ⁇ 60, e is 0-15, x is 0.1 ⁇ 1.5, y is 0.1 ⁇ 3.
  • the a, b, c, d, e, x, y are taken The range of values is: a is 0 ⁇ 15, b is 7 ⁇ 12, c is 24 ⁇ 37, d is 40 ⁇ 55, e is 0 ⁇ 10, x is 0.3 ⁇ 1.2, and y is 0.3 ⁇ 1.5.
  • the ranges of a, b, c, d, e, x, y are: a is 4.5 to 10.5, and b is 7.5 to 8, c is 26.25 ⁇ 36, d is 42 ⁇ 52, e is 0 ⁇ 6, X 3 ⁇ 4 0.5-0.8, y is 0.4 ⁇ 0.8.
  • a significant advantage of the borate luminescent glass embodying the present invention is that it has good light transmittance, high uniformity, and high stability. Further, the borate light-emitting glass of the present invention is also easy to be formed into a large block, and the process for packaging the device is very simple, and therefore, a glass capable of realizing high-performance light is very suitable as a light-emitting medium material in the field of illumination and display.
  • the preparation method of the borate luminescent glass of the invention has the advantages of simple process and low cost, and solves the problem that the luminescent active ions have weak light emission in the glass due to the limitation of the glass preparation conditions and the glass structure, and even do not emit light.
  • FIG. 1 is a flow chart of a method for preparing borate luminescent glass according to an embodiment of the present invention
  • Example 2 is an excitation spectrum and an emission spectrum of a borate luminescent glass prepared in Example 1 measured by ultraviolet light at 366 nm, which was measured by a Shimadzu RF-5301 fluorescence spectrometer;
  • Figure 3 is an excitation spectrum and an emission spectrum of a borate luminescent glass prepared in Example 2, which was measured by ultraviolet light at 366 nm, measured by a Shimadzu RF-5301 fluorescence spectrometer;
  • Fig. 4 is an excitation spectrum and an emission spectrum of a borate luminescent glass prepared in Example 4, which was measured by ultraviolet light at 366 nm, measured by a Shimadzu RF-5301 fluorescence spectrometer. detailed description
  • the borate luminescent glass of the present invention preferably uses at least one of an oxide, a carbonate or an oxalate of A1 2 0 3 , B 2 O 3 , Y, Ce At least one of an oxide, a carbonate or an oxalate, at least one of an oxide, a carbonate or an oxalate of Tb, and a carbonate of SiO 2 and/or an alkali metal, as a preparation Inventing the raw material of borate luminescent glass; Substances of the following chemical formula: aM 2 0 ⁇ bY 2 0 3 - cAl 2 0 3 - d B 2 0 3 - eSi0 2 - xCe0 2 - y Tb
  • M is at least one selected from the group consisting of Na, K, and Li, and a, b, c, d, e, x, and y are mole fractions, and the ranges thereof are: a is 0-20, b is 7 ⁇ 15, c is 20 ⁇ 40, d is 40 ⁇ 60, e is 0 ⁇ 15, x is 0.1 ⁇ 1.5, y is 0.1 ⁇ 3.
  • At least one of an acid salt or an oxalate salt, at least one of an oxide, a carbonate or an oxalate of Ce, at least one of an oxide, a carbonate or an oxalate of Tb, and A substance of A1 2 0 3 and B 2 0 3 was produced to carry out a reaction to obtain a borate luminescent glass of the present invention.
  • the purity of the materials selected is not less than the analytical grade.
  • FIG. 1 illustrates a flow chart of a method for preparing a borate luminescent glass according to an embodiment of the present invention.
  • Step S1 weighing the glass raw material according to the molar fraction of each element in the chemical formula aM 2 0 ⁇ bY 2 0 3 ⁇ cAl 2 0 3 ⁇ d B 2 0 3 ⁇ eSi0 2 ⁇ xCe0 2 ⁇ y Tb 2 0 3
  • M is at least one selected from the group consisting of Na, K, and Li
  • a, b, c, d, e, X, and y are mole fractions, and the ranges thereof are: a is 0 to 20, and b is 7 ⁇ 15, c is 20 ⁇ 40, d is 40 ⁇ 60, e is 0 ⁇ 15, x is 0.1 ⁇ 1.5, y is 0.1 ⁇ 3;
  • Step S2 melting the glass raw material and cooling and forming
  • Step S3 heat-treating the cooled glass to form a borate luminescent glass.
  • the heat treatment is specifically as follows: the cooled formed glass is placed in a reducing environment and heated to 650 to 900 ° C, kept for 4 to 12 hours, and then cooled to room temperature to prepare the borate luminescent glass.
  • Example 1 The different compositions of borate luminescent glasses and methods for their preparation are illustrated below by way of a number of examples.
  • Example 1 The different compositions of borate luminescent glasses and methods for their preparation are illustrated below by way of a number of examples.
  • the formed glass was placed in a reducing atmosphere having a N 2 and H 2 volume ratio of 95:5, and heated to 700 ° C for 4 hours to obtain a borate luminescent glass having the following chemical formula: 15Na 2 O-7.75 Y 2 O 3 -26.25Al 2 O 3 -50B 2 O 3 -0.5CeO 2 -lTb 2 O 3 .
  • the luminescent glass obtained in this example can be excited by violet light in the wavelength range of 330 to 380 nm. Under the excitation of 366nm violet light, the color of the luminescence is green and the brightness is high. As shown in Fig. 2, the excitation wavelength range is 330 to 380 nm, the emission wavelength range is 530-560 nm, and the emission main peak is at 544 nm.
  • potassium carbonate, lithium carbonate, or even sodium oxalate, potassium oxalate, lithium oxalate or a mixture thereof may be optionally used in place of sodium carbonate.
  • sodium oxalate, potassium oxalate, lithium oxalate or a mixture thereof may be optionally used in place of sodium carbonate.
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 800 ° C for 5 hours to obtain a borate luminescent glass having the following chemical formula: 12Y 2 O 3 -37Al 2 O 3 -50B 2 O 3 -0.5CeO 2 -lTb 2 O 3 .
  • the luminescent glass obtained in this example can be excited by violet light in the wavelength range of 330 to 380 nm. Under the excitation of 366nm violet light, the color of the luminescence is green and the brightness is high. As shown in Fig. 3, the excitation wavelength range is 330 to 380 nm, the emission wavelength range is 530-560 nm, and the emission main peak is located at 544 nm.
  • At least one of strontium, barium, strontium carbonate or oxalate may also be used in place of their oxide.
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 850 ° C for 7 hours to obtain a borate luminescent glass having the following chemical formula: 10Y 2 O 3 -37Al 2 O 3 -40B 2 O 3 -10SiO 2 -0.5CeO 2 -3Tb 2 O 3 .
  • Example 4
  • the formed glass is placed in a reducing environment of the carbon powder, and heat-treated at 650 ° C for 12 hours to obtain a borate luminescent glass having the following chemical formula: 15Na 2 0-7Y 2 0 3 -26.25Al 2 0 3 -49.5 B 2 0 3 -1.5 Ce0 2 -lTb 2 0 3.
  • the luminescent glass obtained in this example can be excited by violet light in the wavelength range of 330 to 380 nm. Under the excitation of 364nm violet light, the color of the luminescence is green and the brightness is high. As shown in Fig. 4, the excitation wavelength range is 330 to 380 nm, the emission wavelength range is 530-560 nm, and the emission main peak is located at 544 nm.
  • the excitation wavelength range is 330 to 380 nm
  • the emission wavelength range is 530-560 nm
  • the emission main peak is located at 544 nm.
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 650 ° C for 10 hours to obtain a borate luminescent glass having the following chemical formula: 20Na 2 O-8 Y 2 0 3 -24 A1 2 0 3 -46.5B 2 0 3 - 1.5Ce0 2 - 1.2Tb 2 0 3 .
  • Example 6
  • the formed glass was placed in a reducing atmosphere having a N 2 and H 2 volume ratio of 95 : 5 and heated to 750 ° C for 6 hours to obtain a borate luminescent glass having the following chemical formula: 10.5 Na 2 O- 7.5 Y 2 O 3 -20Al 2 O 3 -60B 2 O 3 -0.8CeO 2 - 1.5Tb 2 0 3 .
  • Example 7
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 750 ° C for 6 hours to obtain a borate luminescent glass having the following chemical formula: 4.5Na 2 O-10Y 2 O 3 -40Al 2 O 3 -45B 2 O 3 -0.3CeO 2 -0.5Tb 2 O 3 .
  • Example 8
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 900 ° C for 12 hours to obtain a borate luminescent glass having the following chemical formula: llY 2 O 3 -33Al 2 O 3 -55B 2 O 3 -0.3CeO 2 -0.8Tb 2 O 3 .
  • a borate luminescent glass having the following chemical formula: llY 2 O 3 -33Al 2 O 3 -55B 2 O 3 -0.3CeO 2 -0.8Tb 2 O 3 .
  • 12Y 2 O 3 -36Al 2 O 3 -52B 2 O 3 -0.1CeO 2 -0.1Tb 2 O 3 (molar ratio)
  • weigh 13.47g of cerium oxide, 31.97g of boric acid, 18.25g of alumina, cerium oxide 0.18 g, 0.08 g of cerium oxide was ground by ball milling or milling to obtain a uniform powder.
  • the ground raw material is placed in an alumina crucible, placed in a high temperature of 1680 ° C for 30 minutes, poured into a stainless steel plate, and quenched and formed.
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 700 ° C for 6 hours to obtain a borate luminescent glass having the following chemical formula: 12Y 2 O 3 -36Al 2 O 3 -52B 2 O 3 -0.1CeO 2 -0.1Tb 2 O 3.
  • the formed glass was placed in a reducing atmosphere having a N 2 and H 2 volume ratio of 95:5, and heated to 780 ° C for 5 hours to obtain a borate luminescent glass having the following chemical formula: 15Na 2 0-7.5 Y 2 0 3 -26.5 Al 2 O 3 -50 B 2 O 3 -0.3 CeO 2 -0.7Tb 2 O 3 .
  • Example 11
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 850 ° C for 7 hours to obtain a borate luminescent glass having the following chemical formula: 10Y 2 O 3 -37Al 2 O 3 -50B 2 O 3 -0.5CeO 2 -3Tb 2 O 3 .
  • Example 12
  • the formed glass was placed in a reducing atmosphere having a N 2 and H 2 volume ratio of 95:5, and heated to 780 ° C for 5 hours to obtain a borate luminescent glass having the following chemical formula: 10Na 2 O-7Y 2 O 3 -25Al 2 O 3 -42B 2 O 3 -15SiO 2 -0.3 CeO 2 -0.5Tb 2 O
  • a borate luminescent glass having the following chemical formula: 10Na 2 O-7Y 2 O 3 -25Al 2 O 3 -42B 2 O 3 -15SiO 2 -0.3 CeO 2 -0.5Tb 2 O
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 780 ° C for 5 hours to obtain a borate luminescent glass having the following chemical formula: 15Na 2 0-8Y 2 0 3 -24Al 2 0 3 -46 B 2 O 3 -6SiO 2 -0.3 CeO 2 -0.5Tb 2 O 3 .
  • Example 14
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 750 ° C for 4 hours to obtain a borate luminescent glass having the following chemical formula: 12 ⁇ 2 ⁇ -35 ⁇ 1 2 ⁇ 3- 50 ⁇ 2 ⁇ 3- 1.2Ce0 2 - 1.8Tb 2 0.
  • Example 15
  • the formed glass was placed in a reducing atmosphere having a N 2 and H 2 volume ratio of 95:5, and heated to 780 ° C for 5 hours to obtain a borate luminescent glass having the following chemical formula: 10Na 2 O-15Y 2 O 3 -25Al 2 O 3 -40B 2 O 3 -10SiO 2 -0.2 CeO 2 -0.4Tb 2 O
  • a borate luminescent glass having the following chemical formula: 10Na 2 O-15Y 2 O 3 -25Al 2 O 3 -40B 2 O 3 -10SiO 2 -0.2 CeO 2 -0.4Tb 2 O
  • the formed glass was placed in a reducing atmosphere having a volume ratio of 95:5 and heated to 780 ° C for 5 hours to obtain a borate luminescent glass having the following chemical formula: 15Na 2 0-8Y 2 0 3 -24Al 2 0 3 -46 B 2 O 3 -3SiO 2 -0.3 CeO 2 -0.5Tb 2 O 3 .

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Description

说 明 书 酸盐发光玻璃及其制备方法 技术领域
本发明涉及发光材料,更具体地说,涉及一种硼酸盐发光玻璃及其制备方 法。 背景技术
目前, 使用的发光材料主要是荧光粉。 目前场发射器件所采用的荧光材料 主要是一些用于传统阴极射线管和投影电视显象管的硫化物系列、氧化物系列 和硫氧化物系列荧光粉。对于硫化物和硫氧化物系列荧光粉来说, 发光亮度较 高, 且具有一定的导电性, 但在大束流阴极射线的轰击下容易发生分解, 放出 单质硫 "毒化 "阴极针尖, 并生成其他沉淀物覆盖在荧光粉表面, 降低了荧光粉 的发光效率, 缩短了场发射器件的使用寿命。
而硼酸盐发光玻璃作为一种新型的光学玻璃,由于其具备了玻璃的良好透 光性越来越受到激光、 光通讯、 光学放大器等光电子领域的重视。 然而, 实际 上现有技术的硼酸盐发光玻璃, 其发光强度还是相对比较弱, 均匀性差, 且稳 定性不够。 发明内容
本发明要解决的技术问题在于,针对现有技术的硼酸盐发光玻璃的发光强 度较弱、 均匀性差且稳定性不够的缺陷, 提供一种具有高发光强度、 良好的均 匀性和稳定性的硼酸盐发光玻璃。
本发明解决其技术问题所采用的技术方案是: 构造一种硼酸盐发光玻璃, 其含有下列化学通式的物质: aM20 -bY203 -cAl203 -d B203 -eSi02 -xCe02 -y
Tb 203, 其中 M选自 Na、 K、 Li中的至少一种, a, b, c, d, e, x, y为摩尔份数, 它们的取值范围分别为: a为 0~20, b为 7~15, c为 20~40, d为 40~60, e为 0-15 , x为 0.1~1.5, y为 0.1~3。
在本发明所述的硼酸盐发光玻璃中,所述 a, b, c, d, e, x, y的取值范围分别 为: a为 0~15, b为 7~12, c为 24~37, d为 40~55, e为 0~10, x ¾ 0.3-1.2 , y为 0.3~1.5。
在本发明所述的硼酸盐发光玻璃中,所述 a, b, c, d, e, x, y的取值范围分别 为: a为 4.5-10.5 , b为 7.5-8 , c为 26.25-36 , d为 42-52 , e为 0-6 , x为 0.5-0.8 , y为 0.4~0.8。
在本发明所述的硼酸盐发光玻璃中,所述硼酸盐发光玻璃可被波长范围为 330〜380nm的紫外光激发。
在本发明所述的硼酸盐发光玻璃中, 在波长为 366nm紫外光激发下, 所 述硼酸盐发光玻璃的激发波长范围为 330〜380nm, 发射波长范围为 530-560nm, 发射主波长为 544nm。
本发明解决其技术问题采用的另一技术方案是,构造一种制备硼酸盐发光 玻璃的方法, 包括:
按照化学通式 aM20 · bY203 · cAl203 · d B203 · eSi02 · xCe02 · y Tb 203 中的各元素的摩尔份数称取玻璃原料, 其中 M选自 Na、 K、 Li中的至少一种, a, b, c, d, e, x, y为摩尔份数, 它们的取值范围分别为: a为 0~20, b为 7~15, c 为 20~40, d为 40~60, e为 0~15, x为 0.1~1.5, y为 0.1~3;
将所述玻璃原料熔融后冷却成型;
对所述冷却成型的玻璃进行热处理, 以制成所述硼酸盐发光玻璃。
进一步的,所述熔融温度范围为 1580〜1750°C ;将所述玻璃原料在 1580〜 1750°C熔融后, 保温 30min, 再冷却成型。
进一步的, 所述热处理具体为: 将所述玻璃置于还原环境中加热到 650〜 900°C, 保温 4〜12h后, 再冷却至室温, 以制成所述硼酸盐发光玻璃。
在本发明所述的制备硼酸盐发光玻璃的方法中,所述摩尔份数 a, b, c, d, e, x, y的取值范围分别为: a为 0~20, b为 7~15, c为 20~40, d为 40~60, e为 0-15 , x为 0.1~1.5, y为 0.1~3。
在本发明所述的制备硼酸盐发光玻璃的方法中,所述 a, b, c, d, e, x, y的取 值范围分别为: a为 0~15, b为 7~12, c为 24~37, d为 40~55, e为 0~10, x 为 0.3~1.2, y为 0.3~1.5。
在本发明所述的制备硼酸盐发光玻璃的方法中,所述 a, b, c, d, e, x, y的取 值范围分别为: a为 4.5~10.5, b为 7.5~8, c为 26.25~36, d为 42~52, e为 0~6, X ¾ 0.5-0.8, y为 0.4~0.8。
实施本发明的硼酸盐发光玻璃的显著优点是具有良好的透光性、 高均匀 性、 稳定性能高。 此外, 本发明的硼酸盐发光玻璃还容易制成大块、 且用于器 件封装时工艺非常简单, 因此, 能够实现高性能发光的玻璃非常适合作为照明 和显示领域的发光介质材料。
本发明的硼酸盐发光玻璃制备方法的工艺简单、低成本、解决了发光玻璃 由于受到玻璃制备条件和玻璃结构的限制,很多发光活性离子在玻璃中发光强 度很弱, 甚至不发光的问题。 附图说明
下面将结合附图及实施例对本发明作进一步说明, 附图中:
图 1是本发明实施例提供的制备硼酸盐发光玻璃的方法流程图;
图 2是采用岛津 RF-5301荧光光谱仪测得的实施例 1制备的硼酸盐发光玻璃 在 366nm紫外光激发的激发光谱和发射光谱;
图 3是采用岛津 RF-5301荧光光谱仪测得的实施例 2制备的硼酸盐发光玻璃 在 366nm紫外光激发的激发光谱和发射光谱;
图 4是采用岛津 RF-5301荧光光谱仪测得的实施例 4制备的硼酸盐发光玻璃 在 366nm紫外光激发的激发光谱和发射光谱。 具体实施方式
在本发明的优选实施例中, 本发明的硼酸盐发光玻璃, 优选采用 A1203, B203, Y的氧化物、 碳酸盐或草酸盐中的至少一种, Ce的氧化物、 碳酸盐或 草酸盐中的至少一种, Tb的氧化物、碳酸盐或草酸盐中的至少一种, 以及 Si02 和 /或碱金属的碳酸盐, 作为制备本发明硼酸盐发光玻璃的原料; 最后制得含 有下列化学通式的物质: aM20 · bY203 - cAl203 - d B203 - eSi02 - xCe02 - y Tb
203的硼酸盐发光玻璃。 其中 M选自 Na、 K、 Li中的至少一种, a, b, c, d, e, x, y为摩尔份数, 它们的取值范围分别为: a为 0~20, b为 7~15, c为 20~40, d 为 40~60, e为 0~15, x为 0.1~1.5, y为 0.1~3。
本领域技术人员知悉, 以上只是列出了较为优选的原料。 除上述原料外, 还可选用其他的可以通过加热、氧化或其他化学反应生成下列物质的材料, 或 含有下列物质的矿物等等: A1203, B203, Y 的氧化物、 碳酸盐或草酸盐中的 至少一种, Ce的氧化物、 碳酸盐或草酸盐中的至少一种, Tb的氧化物、 碳酸 盐或草酸盐中的至少一种。
下面以 Na2C03, Y203, A1203, B203, Si02,Ce02和 Tb407为原料来说明 本发明。通过本发明的下列实施例的介绍, 本领域技术人员可以毫不费力地选 用合适比例的 K2C03、 Li2C03或它们与 Na2C03的混合物, 来与 Y的氧化物、 碳酸盐或草酸盐中的至少一种, Ce的氧化物、碳酸盐或草酸盐中的至少一种, Tb 的氧化物、 碳酸盐或草酸盐中的至少一种, 以及可以生成 A1203, B203的 物质来进行反应, 获得本发明的硼酸盐发光玻璃。 在本发明的优选实施例中, 选用的原料的纯度不低于分析纯级。
请参阅图 1, 说明本发明实施例的硼酸盐发光玻璃的制备方法流程。
步骤 S1、按照化学通式 aM20 · bY203 · cAl203 · d B203 · eSi02 · xCe02 · y Tb 203中的各元素的摩尔份数称取玻璃原料, 其中 M选自 Na、 K、 Li中的至 少一种, a, b, c, d, e, X, y为摩尔份数, 它们的取值范围分别为: a为 0~20, b 为 7~15, c为 20~40, d为 40~60, e为 0~15, x为 0.1~1.5, y为 0.1~3;
步骤 S2、 将玻璃原料熔融后冷却成型;
具体是在 1580〜1750°C温度下熔融, 熔融后保温 30min, 再将熔融的玻 璃熔体倒入不锈钢钢板中淬冷成型。
步骤 S3、 对冷却成型的玻璃进行热处理, 制成硼酸盐发光玻璃。
热处理具体为: 将冷却成型的玻璃置于还原环境中加热到 650〜900°C, 保温 4〜12h后, 再冷却至室温, 以制成所述硼酸盐发光玻璃。
以下通过多个实施例举例说明硼酸盐发光玻璃的不同组成及其制备方法。 实施例 1
按照化学式 15Na2O-7.75Y2O3-26.25Al2O3-50B2O3-0.5CeO2-lTb2O3 (摩尔 比), 分别称量碳酸钠 6.83g, 氧化钇 7.53g, 硼酸 26.62g, 氧化铝 11.52g, 氧 化铽 1.6, 氧化铈 0.36g, 通过球磨或者碾钵研磨, 获得均匀的粉体。将研磨好 的原料装入氧化铝坩埚, 放入到 1630°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 N2与H2体积比为 95 : 5的还原气氛中, 加热到 700 °C热处理 4h, 获得具有下列化学式的物质的硼酸盐发光玻璃: 15Na2O-7.75Y2O3-26.25Al2O3-50B2O3-0.5CeO2-lTb2O3
本实施例所得的发光玻璃, 可被 330〜380nm 波长范围的紫光激发。 在 366nm紫光激发下, 发光颜色呈现绿色, 亮度高。 如图 2所示, 其激发波长范 围 330〜380nm, 发射波长范围 530-560nm, 发射主峰位于 544nm。
在本发明的其他实施例中, 也可选用碳酸钾、 碳酸锂、 甚至草酸钠、 草酸 钾、 草酸锂或它们的混合物来替代碳酸钠。 实施例 2
按照化学式 12Y2O3-37Al2O3-50B2O3-0.5CeO2-lTb2O3 (摩尔比), 称量氧化 钇 7.8g, 硼酸 17.8g, 氧化铝 10.86g, 氧化铈 0.24g, 氧化铽 1.07g, 通过球磨 或者碾钵研磨, 获得均匀的粉体。 将研磨好的原料装入氧化铝坩埚, 放入到 1700°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加热到 800°C热处理 5h, 获得具 有 下 列 化 学 式 的 物 质 的 硼 酸 盐 发 光 玻 璃 : 12Y2O3-37Al2O3-50B2O3-0.5CeO2-lTb2O3
本实施例所得的发光玻璃, 可被 330〜380nm 波长范围的紫光激发。 在 366nm紫光激发下, 发光颜色呈现绿色, 亮度高。 如图 3所示, 其激发波长范 围 330〜380nm, 发射波长范围 530-560nm, 发射主峰位于 544nm。
在本发明的其他实施例中, 也可选用钇、 铈、 铽的碳酸盐或草酸盐中的至 少一种来代替它们的氧化物。 实施例 3
按照化学式 10Y2O3-37Al2O3-40B2O3-10SiO2-0.5CeO2-3Tb2O3 (摩尔比), 分 别称量氧化钇 12.78g, 硼酸 27.99g, 氧化铝 21.35g, 二氧化硅 3.39g, 氧化铈 0.48g, 氧化铽 6.21g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好的 原料装入氧化铝坩埚, 放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬 冷成型。 将成型以后的玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加 热到 850 °C热处理 7h, 获得具有下列化学式的物质的硼酸盐发光玻璃: 10Y2O3-37Al2O3-40B2O3-10SiO2-0.5CeO2-3Tb2O3。 实施例 4
按照化学式 15Na20-7Y203-26.25Al203-49.5 B203-1.5 Ce02-lTb203 (摩尔 比), 分别称量碳酸钠 6.86g, 氧化钇 6.82g, 硼酸 26.44g, 氧化铝 11.56g, 氧 化铈 l.llg, 氧化铽 1.61g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨 好的原料装入氧化铝坩埚,放入到 1680°C高温中保温 30min,倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于碳粉的还原环境中, 加热到 650°C热处理 12h , 获得具有 下 列 化 学式 的 物质 的 硼 酸盐发光 玻璃 : 15Na20-7Y203-26.25Al203-49.5 B203-1.5 Ce02-lTb203
本实施例所得的发光玻璃, 可被 330〜380nm 波长范围的紫光激发。 在 364nm紫光激发下, 发光颜色呈现绿色, 亮度高。 如图 4所示, 其激发波长范 围 330〜380nm, 发射波长范围 530-560nm, 发射主峰位于 544nm。 实施例 5
按照化学式 20Na2O-8Y2O3-24Al2O3-46.5B2O3-1.5CeO2-1.2Tb2O3 (摩尔比), 分别称量碳酸钠 6.79g,氧化钇 5.79g,硼酸 18.03g,氧化铝 7.84g,氧化铽 1.4g, 氧化铈 0.82通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好的原料装入 氧化铝坩埚, 放入到 1630°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加热到 650 °C热处理 10h, 获得具有下列化学式的物质的硼酸盐发光玻璃: 20Na2O-8 Y203-24 A1203-46.5B203- 1.5Ce02- 1.2Tb203。 实施例 6
按照化学式 10.5Na2O-7.5Y2O3-20Al2O3-60B2O3-0.8CeO2-1.5Tb2O3 (摩尔 比), 分别称量碳酸钠 6.01g, 氧化钇 9.15g, 硼酸 40.11g, 氧化铝 11.02g, 氧 化铽 3.02g, 氧化铈 0.74通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好 的原料装入氧化铝坩埚, 放入到 1630°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 N2与H2体积比为 95 : 5的还原气氛中, 加热到 750 °C热处理 6h, 获得具有下列化学式的物质的硼酸盐发光玻璃: 10.5Na2O-7.5 Y2O3-20Al2O3-60B2O3-0.8CeO2- 1.5Tb203。 实施例 7
按照化学式 4.5Na2O-10Y2O3-40Al2O3-45B2O3-0.3CeO2-0.5Tb2O3 (摩尔比), 分别称量碳酸钠 2.38g, 氧化钇 11.3g, 硼酸 27.86g, 氧化铝 20.42g, 氧化铽 0.93g, 氧化铈 0.25g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好的 原料装入氧化铝坩埚, 放入到 1750°C高温中保温 30min, 倒入不锈钢钢板, 淬 冷成型。 将成型以后的玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加 热到 750 °C热处理 6h, 获得具有下列化学式的物质的硼酸盐发光玻璃: 4.5Na2O-10Y2O3-40Al2O3-45B2O3-0.3CeO2-0.5Tb2O3。 实施例 8
按照化学式 llY2O3-33Al2O3-55B2O3-0.3CeO2-0.8Tb2O3 (摩尔比), 分别称 量氧化钇 12.39g, 硼酸 33.92g, 氧化铝 16.78g, 氧化铽 1.49g, 氧化铈 0.25g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好的原料装入氧化铝坩埚, 放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。将成型以后的 玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加热到 900°C热处理 12h, 获 得 具 有 下 列 化 学 式 的 物 质 的 硼 酸 盐 发 光 玻 璃 : llY2O3-33Al2O3-55B2O3-0.3CeO2-0.8Tb2O3。 按照化学式 12Y2O3-36Al2O3-52B2O3-0.1CeO2-0.1Tb2O3 (摩尔比), 分别称 量氧化钇 13.47g, 硼酸 31.97g, 氧化铝 18.25g, 氧化铽 0.18g, 氧化铈 0.08g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好的原料装入氧化铝坩埚, 放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。将成型以后的 玻璃, 置于 与¾体积比为 95 : 5的还原气氛中, 加热到 700°C热处理 6h, 获 得 具 有 下 列 化 学 式 的 物 质 的 硼 酸 盐 发 光 玻 璃 : 12Y2O3-36Al2O3-52B2O3-0.1CeO2-0.1Tb2O3。 实施例 10
按照化学式 15Na20-7.5 Y203-26.5 Al2O3-50 B2O3-0.3 CeO2-0.7Tb2O3 (摩尔 比), 分别称量碳酸钠 8.78g, 氧化钇 9.36g, 硼酸 34.2g, 氧化铝 14.95g, 氧化 铈 0.66g, 氧化铽 0.61g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好 的原料装入氧化铝坩埚, 放入到 1580°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 N2与H2体积比为 95 : 5的还原气氛中, 加热到 780 °C热处理 5h, 获得具有下列化学式的物质的硼酸盐发光玻璃: 15Na20-7.5 Y203-26.5 Al2O3-50 B2O3-0.3 CeO2-0.7Tb2O3。 实施例 11
按照化学式 10Y2O3-37Al2O3-50B2O3-0.5CeO2-3Tb2O3 (摩尔比), 分别称量 氧化钇 6.33g, 硼酸 17.33g, 氧化铝 10.58g, 氧化铈 0.24g, 氧化铽 3.14g, 通 过球磨或者碾钵研磨, 获得均匀的粉体。将研磨好的原料装入氧化铝坩埚, 放 入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。将成型以后的玻 璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加热到 850°C热处理 7h, 获 得 具 有 下 列 化 学 式 的 物 质 的 硼 酸 盐 发 光 玻 璃 : 10Y2O3-37Al2O3-50B2O3-0.5CeO2-3Tb2O3。 实施例 12
按照化学式 10Na2O-7Y2O3-25Al2O3-42 B2O3-15SiO2-0.3 CeO2-0.5Tb2O3 (摩 尔比), 分别称量碳酸钠 7.21g, 氧化钇 10.76g, 硼酸 35.37g, 氧化铝 17.35g, 二氧化硅 6.13g, 氧化铈 0.34g, 氧化铽 1.24g, 通过球磨或者碾钵研磨, 获得 均匀的粉体。 将研磨好的原料装入氧化铝坩埚, 放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 N2与 H2体积 比为 95 : 5的还原气氛中, 加热到 780°C热处理 5h, 获得具有下列化学式的物 质 的 硼 酸 盐 发 光 玻 璃 : 10Na2O-7Y2O3-25Al2O3-42B2O3-15SiO2-0.3 CeO2-0.5Tb2O 实施例 13
按照化学式 15Na20-8Y203-24Al203-46 B2O3-6SiO2-0.3 CeO2-0.5Tb2O3 (摩尔 比), 分别称量碳酸钠 10.61g, 氧化钇 12.06g, 硼酸 37.99g, 氧化铝 16.34g, 二氧化硅 2.4g, 氧化铈 0.34g, 氧化铽 1.21g, 通过球磨或者碾钵研磨, 获得均 匀的粉体。将研磨好的原料装入氧化铝坩埚,放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加热到 780°C热处理 5h, 获得具有下列化学式的物质的硼酸 盐发光玻璃: 15Na20-8Y203-24Al203-46 B2O3-6SiO2-0.3 CeO2-0.5Tb2O3。 实施例 14
按照化学式 12Y2O3-35Al2O3-50B2O3-1.2CeO2-1.8Tb2O3 (摩尔比), 分别称 量氧化钇 15.3g, 硼酸 34.91g, 氧化铝 20.14g, 氧化铽 3.71g, 氧化铈 1.16g, 通过球磨或者碾钵研磨, 获得均匀的粉体。 将研磨好的原料装入氧化铝坩埚, 放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。将成型以后的 玻璃, 置于 与¾体积比为 95 : 5的还原气氛中, 加热到 750°C热处理 4h, 获 得 具 有 下 列 化 学 式 的 物 质 的 硼 酸 盐 发 光 玻 璃 : 12Υ2Ο -35Α12θ3-50Β2θ3- 1.2Ce02- 1.8Tb20。 实施例 15
按照化学式 10Na2O-15Y2O3-25Al2O3-40B2O3-10SiO2-0.2 CeO2-0.4Tb2O3 (摩 尔比), 分别称量碳酸钠 4.19g, 氧化钇 13.4g, 硼酸 19.57g, 氧化铝 10.08g, 二氧化硅 2.37g, 氧化铈 0.06g, 氧化铽 0.57g, 通过球磨或者碾钵研磨, 获得 均匀的粉体。 将研磨好的原料装入氧化铝坩埚, 放入到 1680 °C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 N2与 H2体积 比为 95 : 5的还原气氛中, 加热到 780°C热处理 5h, 获得具有下列化学式的物 质 的 硼 酸 盐 发 光 玻 璃 : 10Na2O-15Y2O3-25Al2O3-40B2O3-10SiO2-0.2 CeO2-0.4Tb2O 实施例 16
按照化学式 15Na20-8Y203-24Al203-46 B2O3-3SiO2-0.3 CeO2-0.5Tb2O3 (摩尔 比), 分别称量碳酸钠 10.61g, 氧化钇 12.06g, 硼酸 37.99g, 氧化铝 16.34g, 二氧化硅 1.2g, 氧化铈 0.34g, 氧化铽 1.21g, 通过球磨或者碾钵研磨, 获得均 匀的粉体。将研磨好的原料装入氧化铝坩埚,放入到 1680°C高温中保温 30min, 倒入不锈钢钢板, 淬冷成型。 将成型以后的玻璃, 置于 ^与¾体积比为 95 : 5的还原气氛中, 加热到 780°C热处理 5h, 获得具有下列化学式的物质的硼酸 盐发光玻璃: 15Na20-8Y203-24Al203-46 B2O3-3SiO2-0.3 CeO2-0.5Tb2O3

Claims

权 利 要 求 书
1、 一种硼酸盐发光玻璃, 其特征在于, 含有下列化学通式的物质: aM20 · bY203 · cAl203 · d B203 · eSi02 · xCe02 · y Tb 203, 其中 M选自 Na、 K、 Li中的至少一种, a, b, c, d, e, x, y为摩尔份数, 它们的取值范围分别为: a 为 0~20, b为 7~15, c为 20~40, d为 40~60, e为 0~15, x为 0.1~1.5, y为 0.1~3 o
2、根据权利要求 1所述的硼酸盐发光玻璃,其特征在于,所述 a, b, c, d, e, x, y的取值范围分别为: a为 0~15, b为 7~12, c为 24~37, d为 40~55, e为 0-10, x ¾ 0.3-1.2, y为 0.3~1.5。
3、根据权利要求 2所述的硼酸盐发光玻璃,其特征在于,所述 a, b, c, d, e, x, y的取值范围分别为: a为 4.5~10.5, b为 7.5~8, c为 26.25~36, d为 42~52, e为 0~6, x ¾ 0.5-0.8, y为 0.4~0.8。
4、 根据权利要求 1-3中任一权利要求所述的硼酸盐发光玻璃, 其特征在 于, 所述硼酸盐发光玻璃可被波长范围为 330〜380nm的紫外光激发。
5、根据权利要求 4所述的硼酸盐发光玻璃,其特征在于,在波长为 366nm 紫外光激发下, 所述硼酸盐发光玻璃的激发波长范围为 330〜380nm, 发射波 长范围为 530-560nm, 发射主波长为 544nm。
6、 一种制备硼酸盐发光玻璃的方法, 其特征在于, 包括:
按照化学通式 aM20 · bY203 · cAl203 · d B203 · eSi02 · xCe02 · y Tb 203 中的各元素的摩尔份数称取玻璃原料, 其中 M选自 Na、 K、 Li中的至少一种, a, b, c, d, e, x, y为摩尔份数, 它们的取值范围分别为: a为 0~20, b为 7~15, c 为 20~40, d为 40~60, e为 0~15, x为 0.1~1.5, y为 0.1~3;
将所述玻璃原料熔融后冷却成型;
对所述冷却成型的玻璃进行热处理, 以制成所述硼酸盐发光玻璃。
7、 根据权利要求 6所述的制备硼酸盐发光玻璃的方法, 其特征在于, 所 述熔融温度范围为 1580〜1750°C ; 将所述玻璃原料在 1580〜1750°C熔融后, 保温 30min, 再冷却成型。
8、 根据权利要求 7所述的制备硼酸盐发光玻璃的方法, 其特征在于, 所 述热处理具体为: 将所述冷却成型的玻璃置于还原环境中加热到 650〜900°C, 保温 4〜12h后, 再冷却至室温, 以制成所述硼酸盐发光玻璃。
9、 根据权利要求 6所述的制备硼酸盐发光玻璃的方法, 其特征在于, 所 述摩尔份数 a, b, c, d, e, x, y的取值范围分别为: a为 0-20, b为 7~15, c为 20-40, d为 40~60, e为 0~15, x为 0.1~1.5, y为 0.1~3。
10、根据权利要求 9所述的制备硼酸盐发光玻璃的方法, 其特征在于, 所 述 a, b, c, d, e, X, y的取值范围分别为: a为 0~15, b为 7~12, c为 24~37, d 为 40~55, e为 0~10, x ¾ 0.3-1.2, y为 0.3~1.5。
11、 根据权利要求 10所述的制备硼酸盐发光玻璃的方法, 其特征在于, 所述 a, b, c, d, e, x, y的取值范围分别为: a为 4.5~ 10.5, b为 7.5~8, c为 26.25-36, d为 42~52, e为 0~6, x ¾ 0.5-0.8 , y为 0.4~0.8。
PCT/CN2009/072891 2009-07-23 2009-07-23 硼酸盐发光玻璃及其制备方法 Ceased WO2011009238A1 (zh)

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