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Tin-antimony-selenium chalcogenide glass and preparation method thereof

A technology of chalcogenide glass and sn-sb-se, which is applied in the field of Sn-Sb-Se chalcogenide glass and its preparation, and achieves good mid- and far-infrared transmittance and near-infrared transmittance, good glass-forming ability, and preparation method. Simple and actionable effects

Inactive Publication Date: 2017-05-31
NINGBO UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a performance A relatively excellent new Sn-Sb-Se chalcogenide glass without As and Ge and its preparation method; the refractive index of the Sn-Sb-Se chalcogenide glass at the 4μm band is 2.59-2.86, and the third-order nonlinear refractive index Up to 10.15×10 -18 m 2 / W, higher than As 40 Se 60 and As 40 S 60 Chalcogenide glass

Method used

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  • Tin-antimony-selenium chalcogenide glass and preparation method thereof
  • Tin-antimony-selenium chalcogenide glass and preparation method thereof
  • Tin-antimony-selenium chalcogenide glass and preparation method thereof

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preparation example Construction

[0025] Four Sn-Sb-Se chalcogenide glasses with different proportions were selected as Examples 1-4, and two classic As-containing chalcogenide glasses (As 40 Se 60 and As 40 S 60 ) as Comparative Examples 1-2. The preparation method of the Sn-Sb-Se chalcogenide glass of each embodiment comprises the following steps:

[0026] 1) Dosing and vacuuming: use high-purity (>99.999%) elemental Sn, Sb and Se, carry out proportioning and weighing according to the ratio in the composition formula and mix them evenly, then put the mixed raw materials into the quartz tube, Vacuum to 10 -4 ~10 -6 Pa, then the raw material is packaged in a closed quartz tube;

[0027] 2) High-temperature melting and quenching: Put the quartz tube packaged with raw materials into a heating furnace for high-temperature melting. The heating temperature is 800-1000°C and the heating time is 12 hours. While melting at high temperature, continuously shake the quartz tube and heat it. After the end, obtain t...

Embodiment 1

[0032] In the microstructure of the Sn-Sb-Se chalcogenide glass of Example 1, the percentage of the number of Sn-Se bonds to the total number of chemical bonds is 16.45%, and the percentage of the number of Sb-Se bonds to the total number of chemical bonds is 56.33% , the percentage of the number of Se-Se bonds in the total number of chemical bonds is 27.22%; in the microstructure of the Sn-Sb-Se chalcogenide glass of Example 2, the percentage of the number of Sn-Se bonds in the total number of chemical bonds is 23.73% %, the percentage of the number of Sb-Se bonds in the total number of chemical bonds is 44.67%, and the percentage of the number of Se-Se bonds in the total number of chemical bonds is 31.6%; the microscopic structure of the Sn-Sb-Se chalcogenide glass of Example 3 In the structure, the number of Sn-Se bonds accounts for 25.55% of the total number of chemical bonds, the percentage of Sb-Se bonds accounts for 57.99% of the total number of chemical bonds, and the p...

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Abstract

The invention discloses Sn-Sb-Se chalcogenide glass. The formula of the chalcogenide glass is SnxSbySez, wherein x, y and z respectively represent the mole number of Sn, Sb and Se, x=6-12, y=10-20, and z=68-82. In the microstructure of the chalcogenide glass, the percentage of the bond number of Sn-Se bonds accounting for the total chemical bond number is 16.45-32.67%, the percentage of the bond number of Sb-Se bonds accounting for the total chemical bond number is 20.08-58.37%, and the balance is the percentage of the bond number of Se-Se bonds accounting for the total chemical bond number. The Sn-Sb-Se chalcogenide glass has the advantages that the Sn-Sb-Se chalcogenide glass does not contain toxic As element and expensive Ge element and is simple and practical in preparation method, the forming area of the Sn-Sb-Se chalcogenide glass mainly concentrates on a selenium-rice area, the refractive index of the Sn-Sb-Se chalcogenide glass at a 4-micrometer waveband position is 2.59-2.86, third-order nonlinear refractive index can reach up to 10.15*10<-18>m<2> / W, the Sn-Sb-Se chalcogenide glass is good in mid-infrared and far-infrared transmission capacity and near-infrared transmission capacity, and a foundation is laid for the infrared device design and manufacturing of the Sn-Sb-Se chalcogenide glass and application of the Sn-Sb-Se chalcogenide glass to the optical field.

Description

technical field [0001] The invention relates to a chalcogenide glass, in particular to a Sn-Sb-Se chalcogenide glass and a preparation method thereof. Background technique [0002] At present, the research on nonlinear optical materials is mainly concentrated in the band below 2 μm, and it is necessary to find materials with excellent optical nonlinearity in the mid-infrared band. Among the third-order nonlinear optical materials, chalcogenide glasses have received extensive attention and research in recent years. Chalcogenide glass is a material with a transmission range from near-infrared, mid-infrared (3-5 μm) to far-infrared region (8-20 μm), with higher density, weaker bond strength, and high nonlinear refractive index coefficient and ultra-fast response time (femtosecond to sub-picosecond level), and the two-photon absorption in the communication band is negligible, it is the best candidate material for fast optical switching and optical signal regeneration. Among th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/32
CPCC03C3/321
Inventor 陈飞飞林睿强张潇予
Owner NINGBO UNIV
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