Ge-Sb-Se-In chalcogenide glass as well as preparation method and application thereof

Through the synergistic effect of Ge-Sb-Se-In sulfur-based glass, the infrared transmission range is broadened and the hardness is improved, and the existing Se-based sulfur-based glass has been solved, thereby achieving more efficient infrared imaging and detection.

CN120157338APending Publication Date: 2025-06-17JIANGSU WAVELENGTH OPTOELECTRONICS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202510299457.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-03-13
Publication Date
2025-06-17

AI Technical Summary

Technical Problem

The existing Se-based sulfur-based glass has limited infrared transmission range and insufficient hardness, resulting in low imaging effect and detection accuracy.

Method used

Using Ge-Sb-Se-In sulfur-based glass, glass with a short-wave cut-off wavelength of 750 nm and a long-wave cut-off wavelength of 16 μm was prepared through the coordination of In, Ge, Sb and Se, and its hardness was improved through a specific heat treatment process.

Benefits of technology

It significantly broadens the infrared transmission range, improves the hardness to 176kgf/mm2, and enhances the imaging effect and detection accuracy.

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Abstract

The invention discloses Ge-Sb-Se-In chalcogenide glass as well as a preparation method and application thereof, and the Ge-Sb-Se-In chalcogenide glass comprises the following element components: 20-30 at% of Ge, 20-30 at% of Se, 20-30 at% of Sb, 20-30 at% of In, 20-30 at% of Sb, 10- 10 to 20 at% of Sb; se: 60 at%; and 1 to 10 at% of In. The preparation method of the Ge-Sb-Se-In chalcogenide glass comprises the following steps: mixing the elementary substance Ge, the elementary substance Sb, the elementary substance Se and the elementary substance In, and sequentially carrying out vacuum packaging, heating melting, cooling, quenching, heat preservation and annealing to obtain the Ge-Sb-Se-In chalcogenide glass. According to the Ge-Sb-Se-In chalcogenide glass disclosed by the invention, through cooperation of In, Ge, Sb and Se, the infrared transmission range is remarkably widened, the short wave cutoff wavelength is 750nm, the long wave cutoff wavelength is 16 microns, and the hardness is improved and can reach 176kgf / mm < 2 >. The material can be used as an infrared window material or an infrared lens, and the imaging effect and the detection precision are improved.
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