A near-infrared luminescent heavy metal oxide glass material with ultra-wide processing temperature range

A technology of heavy metal oxides and glass materials, which is applied in the fields of high thermal stability, high density, radiation-resistant gallium oxide-based glass materials, near-infrared luminescent glass materials, and high transmittance, and can solve the problem of difficult-to-prepare glass-forming capabilities, etc. problem, to achieve the effect of novel preparation method, high density and high thermal stability

Active Publication Date: 2021-10-01
SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

However, it is difficult to prepare Ga with poor glass-forming ability by the conventional container method. 2 o 3 -La 2 o 3 base glass

Method used

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  • A near-infrared luminescent heavy metal oxide glass material with ultra-wide processing temperature range
  • A near-infrared luminescent heavy metal oxide glass material with ultra-wide processing temperature range
  • A near-infrared luminescent heavy metal oxide glass material with ultra-wide processing temperature range

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preparation example Construction

[0040] In the preparation process of the above-mentioned luminescent glass, by using the air suspension containerless technology, the pollution of foreign impurities can be avoided to the greatest extent, the nucleation of heterogeneity can be suppressed, and the melt can be deeply supercooled to achieve rapid solidification. Therefore, heavy metal-based luminescent glasses with uniform composition, high purity, less impurities, and dense structure that cannot be obtained by traditional container methods can be prepared.

[0041] In summary, the heavy metal oxide glass of the present invention not only has high thermal stability, high transmittance, high density, and radiation resistance, but also has excellent performance of high-efficiency near-infrared luminescence (realizing efficient near-infrared output), It is expected to have potential application prospects in the fields of optical fiber communication, infrared detection, three-dimensional display and solid laser.

Embodiment

[0045] According to the ingredient formula (35-x)La 2 o 3 -55Ga 2 o 3 -10Ta 2 o 5 -xEr 2 o 3 Weigh the corresponding oxides, mix them, and wet grind them twice with alcohol, then pre-fire the mixed powder at 1250 ° C for 11 hours, the atmosphere is air, cool with the furnace, and then press it into a cylindrical shape at a pressure of about 8.5 MPa, and then Sinter at 1250°C for 12h. Take about 200mg of raw material and place it in the nozzle of the laser suspension furnace. There is no container to solidify, the atmosphere is oxygen, and the laser power is about 75W. After the sample is completely melted and uniform, turn off the laser to obtain an ellipsoidal or spherical glass without bubbles.

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Abstract

The invention provides a near-infrared light-emitting heavy metal oxide glass material with an ultra-wide processing temperature range. The near-infrared luminescent heavy metal oxide glass material contains Ga 2 o 3 , La 2 o 3 、 Ta 2 o 5 and Er 2 o 3 As the main component, and containing 54.8 to 55.2 mol% of Ga relative to 100 mol parts of the main component 2 o 3 , 32.5-35 mol% La 2 o 3 , 9.9~10.1% mol% Ta 2 o 5 , and Er greater than 0 mol% and less than 2.5 mol% 2 o 3 .

Description

technical field [0001] The invention belongs to the technical field of luminescent materials, and relates to a near-infrared luminescent glass material with an ultra-wide processing temperature range, in particular to a gallium oxide-based glass material with high thermal stability, high transmittance, high density, and radiation resistance. Background technique [0002] In recent years, rare earth-doped multi-component optical glasses have been widely used in fields such as optical fiber communication, three-dimensional display, infrared detection, and solid-state laser. As an important device in the field of optical communication, optical fiber amplifier plays an important role in promoting the development and application of optical communication technology. The emergence of erbium-doped fiber amplifiers effectively reduces the attenuation of optical signals during transmission, prolongs the transmission distance, and makes it possible for large-scale applications of optic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/12C03C4/12
CPCC03C3/12C03C4/12
Inventor 张明辉谢坚生刘学超陈锟邓伟杰潘秀红
Owner SHANGHAI INST OF CERAMIC CHEM & TECH CHINESE ACAD OF SCI
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