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Cu-containing chalcogenide glass with high refractive index and preparation method thereof

A technology of chalcogenide glass and high refractive index, which is applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., and can solve the problems of unsuitable lens simplification, high production cost, doping Ge simple substance, etc.

Pending Publication Date: 2022-06-28
宁波海洋研究院 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the refractive index of these glasses at 10um does not exceed 2.8, and the prepared lenses are thick, which no longer meets the needs of the modern era for lens simplification, and are doped with high-priced Ge simple substances, resulting in high production costs.

Method used

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  • Cu-containing chalcogenide glass with high refractive index and preparation method thereof
  • Cu-containing chalcogenide glass with high refractive index and preparation method thereof

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preparation example Construction

[0036] The present application also aims to provide a method for preparing a Cu-containing high refractive index chalcogenide glass, comprising the following steps:

[0037] S1, take by weighing raw material, described raw material comprises Cu, As, Se and Te elemental substance, and raw material is inserted in quartz reactor, after vacuuming, sealing quartz reactor, and raw material is carried out impurity removal and purification, obtained purified product;

[0038] S2, high temperature melting and quenching, put the quartz tube encapsulated with the purified raw materials into a heating furnace for high temperature melting, the heating temperature is 850 ~ 950 ℃, and the heating time is 30 ~ 35h, after the heating is completed, a melt is obtained in the quartz tube, Then, the encapsulated melt is cooled to 400-450°C and then quenched and solidified;

[0039] S3, annealing the quenched quartz reactor to obtain a Cu-containing high refractive index chalcogenide glass.

[004...

Embodiment 1

[0059] The present embodiment provides a method for preparing a Cu-containing high-refractive-index chalcogenide glass, comprising the following steps: using 5N pure Cu, As, Se and Te as raw materials, and proportioning according to the following atomic percentages:

[0060] Cu: 10At%;

[0061] As: 36At%;

[0062] Se: 31.5At%;

[0063] Te: 22.5At%;

[0064] Weigh 100g of raw materials in a glove box filled with inert gas and mix well; then put the well-mixed raw materials into the glass raw material tube of H-type double-tube quartz ampoule, which is pre-dried and pre-filled with 0.03-0.1wt% Magnesium bar, in this embodiment, 0.1wt% magnesium bar is used, and 0.1wt% is the weight percentage concentration of magnesium bar in the glass mixture. The magnesium bar can react with the oxides in the raw material to remove the Oxygen impurities play the purpose of purifying raw materials, while magnesium does not participate in the melting of glass. Vacuum the quartz ampoule to 1....

Embodiment 2

[0068] The present embodiment provides a method for preparing a Cu-containing high-refractive-index chalcogenide glass, comprising the following steps: using 5N pure Cu, As, Se and Te as raw materials, and proportioning according to the following atomic percentages:

[0069] Cu: 7.5At%;

[0070] As: 37At%;

[0071] Se: 32.5At%;

[0072] Te: 23At%;

[0073] Weigh 100g of raw materials in a glove box filled with inert gas and mix well; then put the well-mixed raw materials into the glass raw material tube of H-type double-tube quartz ampoule, which is pre-dried and pre-filled with 0.03-0.1wt% Magnesium bar, in this embodiment, 0.1wt% magnesium bar is used, and 0.1wt% is the weight percentage concentration of magnesium bar in the glass mixture. The magnesium bar can react with the oxides in the raw material to remove the Oxygen impurities play the purpose of purifying raw materials, while magnesium does not participate in the melting of glass. Vacuum the quartz ampoule to 1.0...

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Abstract

The invention discloses Cu-containing chalcogenide glass with a high refractive index. The Cu-containing chalcogenide glass comprises the following components in percentage by weight: 1At%-15At% of Cu; the content of As is 30 to 40 percent by weight; 30% to 40% of Se; te: 15 to 25 At%, and Te: 15 to 25 At%; the invention further discloses a preparation method of the Cu-containing chalcogenide glass with the high refractive index, and the preparation method comprises the following steps: S1, weighing raw materials, putting the raw materials into a quartz reactor, and removing impurities from the raw materials to prepare a purified product; s2, high-temperature melting and quenching; and S3, annealing the quenched quartz reactor to obtain the Cu-containing chalcogenide glass with high refractive index. According to the Cu-containing chalcogenide glass with the high refractive index, on the basis of existing Ge-Sb-Se chalcogenide glass, Ge is replaced with Cu, and a high-polarizability element Te is doped, so that the problems that the current market chalcogenide glass is low in refractive index, high in glass preparation cost and the like are solved, and the application economic benefits of the chalcogenide glass are improved.

Description

technical field [0001] The invention relates to the technical field of special chalcogenide glass, in particular to a Cu-containing high refractive index chalcogenide glass and a preparation method thereof, belonging to the field of infrared optical materials. Background technique [0002] Chalcogenide glass is a kind of infrared optical material with excellent performance. It has many advantages such as good infrared transmission performance, adjustable composition, thermochemical stability, etc., and has broad application prospects in the field of infrared optics. The refractive index is one of the most basic performance parameters of optical materials, and it is also one of the important optical design parameters. It is of great significance to simplify the optical system and improve the imaging quality. Progress has far-reaching implications. [0003] Currently, the common chalcogenide glasses on the market generally have a low refractive index. For example, glasses su...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32C03C1/02C03B5/16C03B25/00
CPCC03C3/321C03C1/022C03B5/16C03B25/00
Inventor 顾杰荣沈祥贾光仵苗苗夏克伦
Owner 宁波海洋研究院
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