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Elemental silver-doped rare earth ion luminescent glass and its preparation method

A technology of luminescent glass and rare earth ions, applied in the field of luminescent materials, can solve problems such as weak luminous intensity, and achieve the effects of improving luminous efficiency, improving luminous efficiency and luminous intensity

Inactive Publication Date: 2011-11-16
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a rare earth ion luminescent glass doped with elemental silver with high luminous intensity and high luminous efficiency in view of the defect of weak luminous intensity in the existing luminous glass in the prior art

Method used

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  • Elemental silver-doped rare earth ion luminescent glass and its preparation method
  • Elemental silver-doped rare earth ion luminescent glass and its preparation method
  • Elemental silver-doped rare earth ion luminescent glass and its preparation method

Examples

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Effect test

Embodiment 1

[0026] Example 1, the rare earth ion luminescent glass doped with elemental silver is a substance with the following chemical formula: 25SiO 2 ·30Al 2 o 3 10CaO 15NaF 20CaF 2 0.01EuF 3 1Ag 2 o

[0027] Preparation method: weigh silicon dioxide (SiO 2 )6.15g, alumina (Al 2 o 3 ) 12.54g, calcium carbonate (CaCO 3 ) 4.1g, sodium fluoride (NaF) 2.58g, calcium fluoride (CaF 2 )6.4g, europium fluoride (EuF 3 ) 0.006g and silver nitrate (AgNO 3 ) 1.39 g. Grind and mix the weighed raw materials evenly in a mortar, put them into a corundum crucible, and then put the covered corundum crucible with the raw materials into a high-temperature box-type furnace for melting at 1200 ° C. After 3 hours of heat preservation, the glass is melted. Pour the body into a cast iron mold, press it into a transparent glass, and then place the glass in an annealing furnace, 95% N 2 +5%H 2 Raise the temperature to 550°C under a reducing atmosphere, and after holding for 5 hours, turn off 95% ...

Embodiment 2

[0028] Example 2, the rare earth ion luminescent glass doped with elemental silver is a substance with the following chemical formula:

[0029] 50SiO 2 15Al 2 o 3 15NaF 20CaF 2 1EuF 3 0.01Ag 2 o

[0030] Preparation method: weigh silicon dioxide (SiO 2 ) 13.38g, alumina (Al 2 o 3 ) 6.81g, sodium fluoride (NaF) 2.8g, calcium fluoride (CaF 2 )6.95g, europium fluoride (EuF3 ) 0.8g and silver nitrate (AgNO 3 ) 0.015g. Grind and mix the weighed raw materials evenly in a mortar, put them into a corundum crucible, then put the covered corundum crucible with the raw materials into a high-temperature box furnace for melting at 1300°C, and heat the glass for 2 hours. The body is poured into a cast iron mold, pressed into a transparent glass, and then the glass is placed in an annealing furnace, H 2 Heat up to 300°C under reducing atmosphere, keep warm for 5 hours, turn off the H 2 The gas is then heated to 550°C and kept for 4 hours, then the furnace is turned off, and the ...

Embodiment 3

[0031] Example 3, the rare earth ion luminescent glass doped with elemental silver is a substance with the following chemical formula:

[0032] 50SiO 2 ·30Al 2 o 3 10CaO 10CaF 2 0.1EuF 3 0.5Ag 2 o

[0033] Preparation method: weigh silicon dioxide (SiO 2 ) 12.15g, alumina (Al 2 o 3 ) 12.37g, calcium carbonate (CaCO 3 ) 4.04g, calcium fluoride (CaF 2 )3.15g, europium fluoride (EuF 3 ) 0.08g and silver nitrate (AgNO 3 ) 0.69g. Grind and mix the weighed raw materials evenly in a mortar, put them into a corundum crucible, and then put the covered corundum crucible with the raw materials into a high-temperature box furnace for melting at 1500°C, and heat it for 0.5 hours to melt the glass Pour the body into a cast iron mold, press it into a transparent glass, and then place the glass in an annealing furnace, 95% N 2 +5%H 2 Raise the temperature to 400°C under a reducing atmosphere, and after 4 hours of heat preservation, turn off 95% N 2 +5%H 2 The gas is then heat...

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Abstract

The invention discloses elemental silver-doped rare earth ion luminescent glass and its preparation method, wherein the luminescent glass is a substance whose chemical formula is as follows: aSiO2.bAl2O3.cCaO.dNaF.eCaF2.xEuF3.yAg2O. The preparation method provided by the invention comprises the following steps of: using SiO2, Al2O3, CaCO3, NaF, CaF2, EuF3 and AgNO3 as raw materials, melting the raw materials at the temperature of 1200-1500 DEG C for 0.5-3 hours, pouring the melt into a die for moulding; staying warm under reducing atmosphere at the temperature of 300-550 DEG C for 0.5-5 hours; removing the reducing atmosphere, heating up to the temperature of 550-800 DEG C, followed by insulation for 1-5 hours, and finally cooling to room temperature to obtain the luminescent glass. The luminescent glass provided by the invention has high luminescent intensity and high luminescent efficiency. The preparation method provided by the invention has simple process, and is convenient to operate and easy to control; the product prepared by the preparation method has high luminescent intensity and high luminescent efficiency.

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and relates to a luminescent glass and a preparation method thereof, in particular to a rare earth ion luminescent glass doped with elemental silver and a preparation method thereof. Background technique [0002] With the development of semiconductor lighting technology (LED), new light sources represented by the third-generation semiconductor material gallium nitride have gradually entered our daily life. Under the same brightness, the power consumption of semiconductor lighting sources is only 1 / 10 of that of ordinary incandescent lamps, and the service life can reach more than 100,000 hours. As a new lighting technology, LED has many advantages such as energy saving, green environmental protection, and flexible application, and can be widely used in various indications, displays, decorations, backlights, and general lighting. Most of the current commercialized white LED lighting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/112C03C3/062C03C4/12
Inventor 周明杰马文波翁方轶
Owner OCEANS KING LIGHTING SCI&TECH CO LTD