Geen light emitting vycor glass production method

A technology of high-silica glass and its manufacturing method, applied in the field of glass, can solve problems such as unrealized breakthroughs with practical value

Inactive Publication Date: 2006-02-22
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Description
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  • Application Information

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  • Geen light emitting vycor glass production method

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Embodiment 1

[0019] Will be decomposed equivalent to 0.4g of Tb 2 o 3 1.12g of analytically pure Tb(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 The porous glass with a content of more than 97wt% is put into the solution and soaked for more than 10 minutes; after that, the high-silica microporous glass doped with terbium ions is put into a high-temperature furnace, and undergoes solid-phase sintering at 1150°C to eliminate micropores and become Dense and transparent Tb-doped 2 o 3 High silica glass with a concentration of about 0.4%. 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 1150°C and keeping the temperature at this temperature for more than 30 minutes, turn off the power supply of the high-temperat...

Embodiment 2

[0021] Decompose Tb equivalent to 0.1~1.2g 2 o 3 0.28~3.36g of analytically pure Tb(NO 3 ) 3 9H 2 O is put into 25 ml of hydrochloric acid solution (or nitric acid and sulfuric acid) with a concentration of 0.5 to 3 moles, and after it is completely dissolved, the SiO 2 The porous glass with a content of more than 95wt% is put into the solution and soaked for more than 10 minutes; after that, the high-silica porous glass doped with terbium ions is put into a high-temperature furnace, and undergoes solid-state sintering at 1050-1200°C to eliminate micro Pores become dense and transparent Tb-doped 2 o 3 High silica glass with a concentration of about 0.1 to 1.2%. 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 1050-1200°C and keeping the temperature at this temperat...

Embodiment 3

[0023] Will be decomposed equivalent to 0.05g of Tb 2 o 3 0.14g of analytically pure Tb(NO 3 ) 3 9H 2 O and decomposed Gd equivalent to 0.1g 2 o 3 0.3g of analytically pure Gd(NO 3 ) 3 9H 2 O, equivalent to 0.02g of Y after decomposition 2 o 3 0.07g of analytically pure Y (NO 3 ) 3 ·6H 2 O and equivalent to 0.05g Ce after decomposition 2 o 3 0.13g of analytically pure Ce(NO 3 ) 3 ·6H 2 O is put into 25 ml of 1.0 molar concentration of nitric acid solution or aqueous solution, after it is completely dissolved, and then the size is 5 × 5 × 3mm, SiO 2 The porous glass with a content of more than 96% (wt%) is put into the solution and soaked for more than 10 minutes; after that, the high-silica microporous glass doped with these ions is put into a high-temperature furnace, and undergoes solid-state sintering at 1120°C , Eliminate micropores and become dense and transparent high-silica glass with a total concentration of about 0.22% doped with various oxides. Dur...

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Abstract

The preparation method for vycor glass that emits green light comprises, using porous glass with SiO2 content over 95wt%, wherein, the aperture is 1.0-10nm and pore takes up volume of 23-28%; dipping the said glass into solution that contains rare-earth ion, such as Tb ion, or Tb ion and Ce ion, or gadolinium ion and Yt ion; sintering at temperature more than 1050Deg. The product has green light of 545nm when activating by ultraviolet light of 254nm.

Description

technical field [0001] The invention relates to glass, in particular to a method for manufacturing green light-emitting high-silica 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 be widely used. in daily life. However, experiments have found that the luminous efficiency of luminescent ions in glass is much lower than that of crystal materials. An important reason is that these ions tend to spontaneously form clusters to produce concentration extinction during the high-temperature melting process of glass preparation. 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 lot of research, but have n...

Claims

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Application Information

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IPC IPC(8): C03C4/12C03C3/06C03C17/00
Inventor 陈丹平
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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