NaBa4Ga2B8O18Br3 and NaBa4Ga2B8O18Br3 non-linear optical crystal and preparation method and application thereof
A technology of barium sodium bromogallium borate and barium bromogallium borate, which is applied in the field of nonlinear optical crystals, preparation and application of barium sodium bromogallium borate and barium sodium bromogallium borate, and can solve the problems of crystal deliquescence, high price, and long growth cycle And other issues
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Embodiment 1
[0039] According to the reaction formula: 7BaCO 3 +2NaBr+BaBr 2 +2Ga 2 o 3 +16H 3 BO 3 →2NaBa 4 Ga 2 B 8 o 18 Br 3 +7CO 2 ↑+24H 2 O ↑ Synthesis of NaBa 4 Ga 2 B 8 o 18 Br 3 Compound:
[0040] BaCO 3 , NaBr, BaBr 2 , Ga 2 o 3 、H 3 BO 3 Put it into a mortar with a molar ratio of 7:2:1:2:16, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, put it into a muffle furnace, and slowly raise the temperature to 550°C, constant temperature 24 hour, take out the crucible after cooling, at this time the sample is relatively loose, take out the sample and grind it evenly, then put it in the crucible, keep the temperature in the muffle furnace at 800°C for another 48 hours, take it out, put it in the mortar and pound it The compound NaBa is obtained by crushing and grinding 4 Ga 2 B 8 o 18 Br 3 , Carry out X-ray analysis to this product, the obtained X-ray spectrogram is consistent with NaBa 4 Ga 2 B 8 o 18 Br ...
Embodiment 2
[0047] According to the reaction formula: 7Ba(NO 3 ) 2 +2NaBr+BaBr 2 +2Ga 2 o 3 +16H 3 BO 3 →2NaBa 4 Ga 2 B 8 o 18 Br 3 +13NO 2 ↑+NO↑+24H 2 O↑+4O 2 ↑ Synthesis of NaBa 4 Ga 2 B 8 o 18 Br 3 Compound:
[0048] Ba(NO 3 ) 2 , NaBr, BaBr 2 , Ga 2 o 3 、H 3 BO 3 The raw materials are directly weighed in a molar ratio of 7:2:1:2:16, and the weighed raw materials are mixed with the flux KBr-PbO in a molar ratio of 1:4, wherein the molar ratio of KBr to PbO is 2:1, Put it into a Φ80mm×80mm open platinum crucible, raise the temperature to 820°C at a rate of 1°C / h, keep the temperature constant for 5 hours to obtain a mixed melt, and then cool down to 700°C;
[0049] Preparation of barium sodium bromide gallium borate seed crystal: Slowly cool the obtained mixed melt to room temperature at a rate of 1.5°C / h, and spontaneously crystallize to obtain barium sodium bromide gallium borate seed crystal;
[0050] Put the crucible containing the obtained mixed melt into...
Embodiment 3
[0054] According to the reaction formula: 7BaO+2NaBr+BaBr 2 +2Ga 2 o 3 +16H 3 BO 3 →2NaBa 4 Ga 2 B 8 o 18 Br 3 +24H 2 O ↑ Synthesis of NaBa 4 Ga 2 B 8 o 18 Br 3 Compound:
[0055] BaO, NaBr, BaBr 2 , Ga 2 o 3 、H 3 BO 3 Put it into a mortar with a molar ratio of 7:2:1:2:16, mix and grind it carefully, then put it into a corundum crucible with an opening of Φ100mm×100mm, press it tightly, put it into a muffle furnace, and slowly heat up to 550°C, constant temperature for 24 hours, take out the crucible after cooling, at this time the sample is relatively loose, take out the sample and grind it evenly, then put it in the crucible, keep the temperature in the muffle furnace at 800°C for another 48 hours, take it out, put Pound in a mortar and grind to get NaBa 4 Ga 2 B 8 o 18 Br 3 Compound, carry out X-ray analysis to this product, gained X-ray spectrogram and sodium barium bromide gallium borate NaBa 4 Ga 2 B 8 o 18 Br 3 The X-ray spectra obtained by...
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