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A kind of ge-sn-s chalcogenide glass and preparation method thereof

A technology of chalcogenide glass and ge-sn-s, which is applied in the field of chalcogenide glass, can solve the problems that have not been systematically studied, and achieve good mid- and far-infrared transmittance, good near-infrared transmittance, thermal performance and Good physical and chemical properties

Active Publication Date: 2018-07-20
NINGBO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Previous studies have shown that when heavy metal elements Sb or Sn are added to Ge-S-based chalcogenide glasses, the nonlinear properties of the glass will be significantly improved, but previous studies mainly focused on Ge-Sb-S glass or thin films. In terms of research, Ge-S-based glasses doped with Sn elements in the same main group as Pb elements have not been systematically studied.

Method used

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  • A kind of ge-sn-s chalcogenide glass and preparation method thereof
  • A kind of ge-sn-s chalcogenide glass and preparation method thereof
  • A kind of ge-sn-s chalcogenide glass and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] The composition formula of the Ge-Sn-S chalcogenide glass of Example 1 is Ge 20 sn 5 S 75 , the preparation process is as follows: use elemental germanium, elemental tin and elemental sulfur with a purity of more than 99.999%, weigh them according to the proportion and mix them uniformly, then put the mixed raw materials into a quartz tube, and evacuate to 10 -6 Pa, and then package the raw material in a sealed quartz tube; put the quartz tube packaged with the raw material into a heating furnace for high-temperature melting, the heating temperature is 850°C, and the heating time is 25h, and the quartz tube is continuously melted at the same time. Shake, after heating, get the melt in the quartz tube, then immerse the quartz tube in distilled water at 10°C to quench the encapsulated melt, take it out immediately after the wall is removed, and get Ge-Sn-S chalcogenide glass in the quartz tube The semi-finished product of Ge-Sn-S chalcogenide glass is annealed together ...

Embodiment 2

[0021] The compositional formula of the Ge-Sn-S chalcogenide glass of Example 2 is Ge 20 sn 10 S 70 , the preparation process is as follows: use elemental germanium, elemental tin and elemental sulfur with a purity of more than 99.999%, weigh them according to the proportion and mix them uniformly, then put the mixed raw materials into a quartz tube, and evacuate to 10 -4 Pa, then package the raw material in a sealed quartz tube; put the quartz tube packaged with the raw material into a heating furnace for high-temperature melting, the heating temperature is 890 ° C, the heating time is 18 hours, and the quartz tube is continuously melted at the same time. Shake, after heating, get the melt in the quartz tube, then immerse the quartz tube in distilled water at 25°C to quench the encapsulated melt, take it out immediately after the wall is removed, and get Ge-Sn-S chalcogenide glass in the quartz tube The semi-finished product of Ge-Sn-S chalcogenide glass is annealed togethe...

Embodiment 3

[0022] The composition formula of the Ge-Sn-S chalcogenide glass of Example 3 is Ge 22.5 sn 2.5 S 75, the preparation process is as follows: use elemental germanium, elemental tin and elemental sulfur with a purity of more than 99.999%, weigh them according to the proportion and mix them uniformly, then put the mixed raw materials into a quartz tube, and evacuate to 10 -6 Pa, then package the raw material in a sealed quartz tube; put the quartz tube packaged with the raw material into a heating furnace for high-temperature melting, the heating temperature is 860 ° C, and the heating time is 24 hours, and the quartz tube is continuously melted at the same time. Shake, after heating, get the melt in the quartz tube, then immerse the quartz tube in distilled water at 5°C to quench the encapsulated melt, take it out immediately after the wall is removed, and get Ge-Sn-S chalcogenide glass in the quartz tube The semi-finished product of Ge-Sn-S chalcogenide glass is annealed toge...

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Abstract

The invention discloses Ge-Sn-S chalcogenide glass. A chemical formula of the Ge-Sn-S chalcogenide glass is GexSnySz, wherein x, y and z respectively represent mole fractions of Ge, Sn and S; x is equal to 15-30; y is equal to 2-15; z is equal to 63-85. The transition temperature, microhardness, near-infrared cutoff wavelength and infrared cutoff wavelength of the chalcogenide glass are respectively 300-430 DEG C, 172-215kgf / mm<2>, 500-550nm and 12.5mu m. The invention provides the Ge-Sn-S chalcogenide glass and a preparation method thereof based on chalcogenide glass regulation and control model and glass structural dynamics research. The Ge-Sn-S ternary system chalcogenide glass does not contain As, has better glass forming capacity, has relatively small formative regions which mainly gather in sulfur-rich regions, also has better thermal property and physical and chemical properties, also has good mid and far infrared transmission capacity and near-infrared transmission characteristic and lays the foundation for application of the Ge-Sn-S chalcogenide glass in the field of infrared device design and manufacture and other optical fields.

Description

technical field [0001] The invention relates to a chalcogenide glass, in particular to a Ge-Sn-S chalcogenide glass and a preparation method thereof. Background technique [0002] Compared with traditional oxide glasses, chalcogenide glasses have many excellent properties that oxide glasses do not have. For example, chalcogenide glass has high transmittance in the far-infrared bands of 3-5 microns and 8-14 microns, which makes chalcogenide glass widely applicable in the fields of infrared thermal imaging, infrared laser transmission and chemical sensing. . Among many chalcogenide glass systems, arsenic-containing chalcogenide glasses have always been the focus of research because of their excellent properties. [0003] However, arsenic is highly toxic to the human body and causes certain pollution to the environment. Therefore, the research and development of arsenic-free, environmentally friendly glass with better performance has become the future development direction of...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C3/32C03C4/10
CPCC03C3/321C03C4/10
Inventor 陈飞飞黄益聪乔北京戴世勋聂秋华徐铁峰
Owner NINGBO UNIV
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