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Manufacturing method of high silica blue light emitting glass

A manufacturing method, a high-silicon-oxygen technology, applied in the directions of luminescent materials, chemical instruments and methods, etc., can solve problems such as low glass concentration

Inactive Publication Date: 2006-03-29
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of glass prepared by the aqueous solution tends to have a light yellow color or a low concentration of europium-doped ions

Method used

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  • Manufacturing method of high silica blue light emitting glass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] 0.09~1.5g analytically pure Eu(NO 3 ) 3 9H 2 O is put into 25 milliliters of nitric acid solution (or hydrochloric acid solution, sulfuric acid solution) of 0.5-3 molar concentration, after completely dissolving, then the size is 5 * 5 * 3mm, SiO 2 Porous glass with a content of more than 95% by weight is put into the solution and soaked for more than 10 minutes; after that, put the high-silica microporous glass doped with europium ions into a corundum crucible with a cover, and put 5-10g of graphite around the glass Or carbon powder; in the reducing atmosphere of a high-temperature furnace, after sintering at 1080-1200 ° C, the micropores are eliminated and become a dense and transparent high-silica glass with a EuO-doped concentration of about 0.03-0.5%. During the sintering process, after rising from room temperature to 400°C at a speed of less than 5°C per minute, it rises to around 950°C at a speed of 10°C per minute, and then rises from this temperature at a spe...

Embodiment 2

[0015] After decomposition, 0.06-0.6g of analytically pure Eu(NO 3 ) 3 9H 2 O was put into 25 ml of ethanol and acetone solution, and after it was completely dissolved, the SiO 2 Porous glass with a content of more than 96wt% is put into the solution and soaked for more than 10 minutes; after that, put the high-silica microporous glass doped with europium ions into a corundum crucible with a cover, and put 5-10g of graphite around the glass Or carbon powder; under the reducing atmosphere of a high-temperature furnace, undergo solid-phase sintering at 1100-1200 ° C to eliminate micropores and become dense and transparent high-silica glass with a EuO doped concentration of about 0.02-0.2%. During the sintering process, after rising from room temperature to 400°C at a speed of less than 5°C per minute, it rises to around 950°C at a speed of 10°C per minute, and then rises from this temperature at a speed of below 5°C per minute. After reaching 1100-1200°C and keeping the tempe...

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Abstract

A process for preparing the high-Si-O glass generating blue light includes such steps as immersing the porous high-Si-O glass in the acid (or organic) solution containing Eu ions and high-temp sintering at more than 1050 deg.C in reductive atmosphere. Its advantage is high intensity of blue light.

Description

technical field [0001] The invention relates to a high-silica luminescent glass, in particular to a method for manufacturing a high-silica luminescent glass. Background technique [0002] Oxide glass has the advantages of good light transmission, chemical stability, especially low cost, and easy to make various shapes. After years of research, people have been expecting that glass luminescent materials can become high-efficiency luminescent glasses and are widely used. Applied in daily life. However, experiments have found that the luminous efficiency of luminescent ions in glass is much lower than that of crystal materials. One important reason is that these ions are easy to form clusters spontaneously during the process of glass preparation at high temperature to produce concentration extinction. Many rare earth ions begin to produce concentration extinction at only a few hundred ppm in the oxide glass. How to solve this problem, scientists at home and abroad have done a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C4/12C03C17/27C03C3/06
CPCC09K11/7734C09K11/77342
Inventor 陈丹平杨旅云彭明营周秦岭达宁
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI