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A kind of highly stable full-spectrum transparent infrared chalcogenide glass material and preparation method thereof

A chalcogenide glass, full-spectrum technology, applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of poor glass forming performance and short long-wave infrared cut-off edge, so as to increase flexibility and improve glass forming ability Effect

Active Publication Date: 2022-08-05
NINGBO UNIV
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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, for existing GeS 2 -Ga 2 S 3 -CsX system chalcogenide glass has poor glass-forming performance and short long-wave infrared cut-off edge, providing a highly stable full-spectrum transparent infrared chalcogenide glass material and its preparation method

Method used

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  • A kind of highly stable full-spectrum transparent infrared chalcogenide glass material and preparation method thereof
  • A kind of highly stable full-spectrum transparent infrared chalcogenide glass material and preparation method thereof
  • A kind of highly stable full-spectrum transparent infrared chalcogenide glass material and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0017] The highly stable full-spectrum transparent infrared chalcogenide glass material of Example 1, its molar composition is represented by chemical formula as 78Ge (S 0.1 Se 0.9 ) 2 ·10Ga 2 S 3 ·2Sb 2 S 3 10CsCl, its preparation method includes the following steps: using 5N pure Ge element, Sb element, Ga element, S element, Se element and 4N pure CsCl compound as raw materials, prepare 300 grams of mixture according to the raw material ratio of glass molar composition ; Put the mixture into a glass raw material tube with an inner diameter of 120 mm, which has been pre-dried and pre-loaded with 0.05 grams of magnesium strips in a clean H-type double-tube quartz ampoule, and the quartz ampoule is evacuated to 1.5 × 10 -3 Pa, then use the oxyhydrogen flame to seal the quartz ampoule; put the melted and sealed quartz ampoule into the double-temperature zone distillation furnace, set the temperature of the cold end as 100°C and the temperature of the hot end as 400°C, carr...

Embodiment 2

[0019] The highly stable full-spectrum transparent infrared chalcogenide glass material of Example 2, its molar composition is represented by chemical formula as 65GeSe 2 ·10Ga 2 (S 0.5 Se 0.5 ) 3 ·10Sb 2 S 3 15CsCl, its preparation method includes the following steps: using 5N pure Ge element, Sb element, Ga element, S element, Se element and 4N pure CsCl compound as raw materials, prepare 80 grams of mixture according to the raw material ratio of glass molar composition ; Put the mixture into a glass raw material tube with an inner diameter of 30mm that has been pre-dried and pre-loaded into a clean H-type double-tube quartz ampoule with 0.01 g of magnesium strips, and the quartz ampoule is evacuated to 1.0 × 10 -3 Pa, then use the oxyhydrogen flame to seal the quartz ampoule; put the melted and sealed quartz ampoule into the double-temperature zone distillation furnace, set the temperature of the cold end as 100°C and the temperature of the hot end as 400°C, carry out ...

Embodiment 3

[0021] The highly stable full-spectrum transparent infrared chalcogenide glass material of Example 3, its molar composition is represented by chemical formula as 75GeSe 2 ·12Ga 2 S 3 ·3Sb 2 S 3 10CsCl, its preparation method includes the following steps: using 5N pure Ge element, Sb element, Ga element, S element, Se element and 4N pure CsCl compound as raw materials, prepare 200 grams of mixture according to the raw material ratio of glass molar composition ; Put the mixture into a glass raw material tube with an inner diameter of 90mm that has been pre-dried and pre-loaded into a clean H-type double-tube quartz ampoule with 0.03 grams of magnesium strips, and the quartz ampoule is evacuated to 1.3 × 10 -3 Pa, then use the oxyhydrogen flame to seal the quartz ampoule; put the melted and sealed quartz ampoule into the double-temperature zone distillation furnace, set the temperature of the cold end as 100°C and the temperature of the hot end as 400°C, carry out distillation...

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Abstract

The molar composition of the highly stable full-spectrum transparent infrared chalcogenide glass material disclosed in the present invention is expressed as aGe(S 1‑ x Se x ) 2 ·bGa 2 (S 1‑y Se y ) 3 ·cSb 2 (S 1‑z Se z ) 3 dCsCl, where: a=60~90 mol%, x=0~1; b=5~25 mol%, y=0~1; c=0~15 mol%, z=0~1; d=5 ~15 mol%; x+y+z≥0.1; a+b+c+d=100 mol%. The invention increases the flexibility of the glass network by introducing Sb, improves the glass forming ability, and prepares a large-sized glass sample with a diameter of more than 100 mm; replaces part of S with Se, reduces the phonon energy of the glass anion group, and expands its long-wave infrared cut-off edge. A highly stable full-spectrum transparent infrared chalcogenide glass material is obtained. The chalcogenide glass material of the invention has high transmittance in the full spectrum range of 0.5-12 μm, covers various atmospheric windows such as visible, 1-3 μm, 3-5 μm and 8-12 μm, and can replace ZnS crystal material and be applied in Full spectrum imaging, sensing, etc.

Description

technical field [0001] The invention belongs to the technical field of infrared optical materials, in particular to a highly stable full-spectrum transparent infrared chalcogenide glass material and a preparation method thereof. Background technique [0002] At present, the common infrared lens materials used in infrared thermal imagers mainly include germanium single crystal, ZnS, ZnSe and chalcogenide glass. Germanium single crystal material has an extremely wide infrared transparent window of 1.5~22 μm, and is one of the most commonly used infrared optical materials. However, germanium single crystals are opaque in the visible light region and cannot meet the development requirements of "multi-photosynthesis" imaging technology. The transmission spectrum of ZnS materials and ZnSe materials can extend from the visible light region to the long-wave infrared region above 12 μm, and they are a class of excellent full-spectrum transparent infrared optical materials. In parti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/32C03C4/10C03C1/02C03B5/235
CPCC03C3/323C03C4/10C03C1/02C03B5/235
Inventor 林常规陈旦戴世勋焦清张培晴沈祥王训四
Owner NINGBO UNIV