li2in2sis6 compound, li2in2sis6 nonlinear optical crystal, preparation method and use
A technology of nonlinear optics and compounds, applied in nonlinear optics, chemical instruments and methods, optics, etc., can solve problems affecting practical use, difficulty in crystal growth, and low optical damage threshold
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Embodiment 1
[0039] Embodiment 1, prepare powdery Li 2 In 2 SiS 6 Compound:
[0040] Using (1) Li 2 S+In 2 S 3 +SiS 2 = Li 2 In 2 SiS 6 The reaction formula is to prepare Li by solid-state reaction method 2 In 2 SiS 6 Compound; The Li 2 S is 1.379 g, the In 2 S 3 9.775 g, the SiS 2 It is 2.767 grams; that is, Li 2 S:In 2 S 3 :SiS 2 =0.03mol:0.03mol:0.03mol;
[0041] The specific operation steps are: weigh the reagents according to the above dosage in the glove box, put them into the mortar, mix and carefully grind them, then put them into a quartz tube of Φ12mm×16mm, and evacuate them to 10 -3 After pa, melt and seal the quartz tube with a hydrogen-oxygen flame, put it in a muffle furnace, slowly raise it to 800°C, keep the temperature constant for 48-72 hours, take it out after cooling, take out the sample and re-grind and mix it, and then put it in the quartz tube for pumping Vacuum packaging, sintering in a muffle furnace at 800 ° C for 48 hours, take it out, put it...
Embodiment 2
[0042] Embodiment 2, prepare powdery Li 2 In 2 SiS 6 Compound:
[0043] Using Li 2 S+2In+Si+5S=Li 2 In 2 SiS 6 The reaction formula is to prepare Li by solid-state reaction method 2 In 2 SiS 6 Compound; The Li 2 S is 1.379 grams, the In is 6.889 grams, the Si is 0.843 grams, and the S is 4.811 grams, namely Li 2 S: In: Si: S=0.03mol: 0.06mol: 0.03mol: 0.15mol;
[0044] The specific operation steps are: weigh the reagents according to the above dosage in the glove box, put them into the mortar, mix and carefully grind them, then put them into a Φ12mm×16mm quartz tube, and vacuumize to 10 -3 After pa, melt and package the quartz tube with a flame, put it into a muffle furnace, and slowly raise it to 900°C with a heating rate of 10°C / hour, keep the temperature constant for 48 hours, take it out after cooling, take out the sample and grind it again, and place it Vacuumize and seal in a quartz tube, sinter in a muffle furnace at 800°C for 48 hours, take it out, put it i...
Embodiment 3
[0045] Embodiment 3, prepare powdery Li 2 In 2 SiS 6 Compound:
[0046] Using Li 2 S+In 2 S 3 +Si+2S=Li 2 In 2 SiS 6 The reaction formula is to prepare Li by solid-state reaction method 2 In 2 SiS 6 Compound; The Li 2 S is 1.379 g, the In 2 S 3 is 9.775 grams, the Si is 0.843 grams, and the S is 1.924 grams, namely Li 2 S:In 2 S 3 :Si:S=0.03mol:0.03mol:0.03mol:0.06mol;
[0047] The specific operation steps are as follows: weigh the reagents in the glove box according to the above doses, put them into a mortar, mix and carefully grind them, then put them into a Φ12mm×16mm quartz tube, and evacuate them to 10 -3 After pa, melt and package the quartz tube with a flame, put it into a muffle furnace, and slowly raise it to 800°C with a heating rate of 20°C / hour, and keep the temperature constant for 72 hours. Vacuum-encapsulated in a quartz tube, sintered in a muffle furnace at 800°C for 48 hours, taken out, crushed and ground in a mortar to obtain powdered Li 2 ...
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