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Barium-zinc-tin-sulfur-oxygen compound, barium-zinc-tin-sulfur-oxygen nonlinear optical crystal, preparation method and application

A tin-sulfur-oxygen nonlinear compound technology, applied in the field of nonlinear optical devices, can solve problems such as limited applications

Pending Publication Date: 2021-06-18
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commercialized chalcopyrite-type infrared nonlinear optical crystal AgGaQ 2 (Q=S, Se) and ZnGeP 2 There are many inherent drawbacks that limit their application

Method used

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  • Barium-zinc-tin-sulfur-oxygen compound, barium-zinc-tin-sulfur-oxygen nonlinear optical crystal, preparation method and application
  • Barium-zinc-tin-sulfur-oxygen compound, barium-zinc-tin-sulfur-oxygen nonlinear optical crystal, preparation method and application
  • Barium-zinc-tin-sulfur-oxygen compound, barium-zinc-tin-sulfur-oxygen nonlinear optical crystal, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] According to the reaction formula: 2Ba+1ZnO+2Sn+6S→Ba 2 ZnSn 2 S 6 O preparation compound barium zinc tin sulfur oxide polycrystalline powder:

[0048] a. Mix barium element, zinc oxide powder, tin element and sulfur powder in a molar ratio of 2:1:2:6 in a glove box filled with inert gas argon in an airtight container with a water content and an oxygen content of 0.05ppm After uniformity, put it into a clean graphite crucible, put it into a quartz glass tube, and place the quartz tube containing the raw material in a vacuum of 10 -3 Sealed after vacuuming under the condition of Pa;

[0049] b. The quartz tube sealed in step a is raised from room temperature to 130°C at a temperature increase rate of 10°C / h, kept for 30 hours, and then heated to 750°C at a temperature of 20°C / h, and kept for 70 hours;

[0050] c. Cool down to room temperature at a rate of 2°C / h, take out the sample, put it in a mortar, grind it, and grind it to get the white compound Ba 2 ZnSn 2 S ...

Embodiment 2

[0056] According to the reaction formula: 1BaO+1Ba+2Zn+2Sn+6S→Ba 2 ZnSn 2 S 6 O preparation compound barium zinc tin sulfur oxide polycrystalline powder:

[0057] a. In an airtight container with a water content and an oxygen content of 0.05ppm, the barium element, barium oxide, zinc element, tin element and sulfur powder are in a molar ratio of 1:1:2 in a glove box filled with inert gas argon: 2:6 mixed evenly, put it into a clean graphite crucible, put it into a quartz glass tube, put the quartz tube containing the raw material in a vacuum of 10 -3 Sealed after vacuuming under the condition of Pa;

[0058] b. The quartz tube sealed in step a is raised from room temperature to 200°C at a heating rate of 40°C / h, and kept at a temperature of 60 hours, then raised to 800°C at a temperature of 20°C / h, and kept at a temperature of 90 hours;

[0059] c. Cool down to room temperature at a rate of 5°C / h, take out the sample and put it into a mortar, crush it, and grind it to obta...

Embodiment 3

[0065] According to the reaction formula: 1BaO+1Ba+2Zn+2SnS 2 +2S→Ba 2 ZnSn 2 S 6 O preparation compound barium zinc tin sulfur oxide polycrystalline powder:

[0066] a. In a glove box filled with an inert gas argon in an airtight container with a water content and an oxygen content of 0.05ppm, the barium element, barium oxide, zinc element, tin disulfide and sulfur powder are mixed in a molar ratio of 1:1:2 :2:2 After mixing evenly, put it into a clean graphite crucible, put it into a quartz glass tube, and place the quartz tube with raw materials at a vacuum of 10 -3 Sealed after vacuuming under the condition of Pa;

[0067] b. The quartz tube sealed in step a is raised from room temperature to 300°C at a heating rate of 40°C / h, and kept for 60 hours, then raised to 780°C at a temperature of 10°C / h, and kept for 100 hours;

[0068] c. Cool down to room temperature at a rate of 3°C / h, take out the sample and put it in a mortar, crush it, and grind it to obtain the white ...

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Abstract

The invention relates to a barium-zinc-tin-sulfur-oxygen compound, a barium-zinc-tin-sulfur-oxygen nonlinear optical crystal, a preparation method and application. The chemical formula of the barium-zinc-tin-sulfur-oxygen compound and the chemical formula of the barium-zinc-tin-sulfur-oxygen crystal are Ba2ZnSn2S6O and belong to a tetragonal system,the space groups are all P-421m, the unit cell parameter Z is equal to 2, and the unit cell volume molecular weight is 785.79. The Ba2ZnSn2S6O nonlinear optical crystal is synthesized by adopting high-temperature spontaneous crystallization under a vacuum condition; the frequency-doubled effect of the Ba2ZnSn2S6O powder is 0.6 times that of sulfur gallium silver (AgGaS2) with the same granularity under the irradiation of laser with the wavelength of 2090nm; and the Ba2ZnSn2S6O nonlinear optical crystal has a relatively wide light transmission wave band and a moderate frequency doubling effect, and is used for manufacturing a nonlinear optical device.

Description

technical field [0001] The present invention relates to chemical formula Ba 2 ZnSn 2 S 6 O compound barium zinc tin oxysulfide and barium zinc tin oxysulfide nonlinear optical crystal, preparation method of crystal and nonlinear optical device made by using the crystal. Background technique [0002] Infrared (IR) nonlinear optics (NLO) materials are the key materials for producing new coherent light sources (3-20um). Appropriate infrared nonlinear optical materials are a necessary condition for producing high-quality, simple and efficient all-solid-state infrared laser devices. At present, the commercialized chalcopyrite-type infrared nonlinear optical crystal AgGaQ 2 (Q=S, Se) and ZnGeP 2 There are many inherent drawbacks that limit their applications. Therefore, it is crucial to discover new infrared NLO materials with better comprehensive performance. In general, promising NLO materials should meet the following requirements: wide light transmission range, especial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C30B29/46C30B9/12C30B11/00G02F1/355
CPCC30B29/46C30B9/12C30B11/00G02F1/3551
Inventor 俞洪伟成岩松吴红萍胡章贵
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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