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首页> 外文期刊>Journal of Crystal Growth >Growth And Characterization Of Kdp Crystals With Potassium Carbonate As Additive
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Growth And Characterization Of Kdp Crystals With Potassium Carbonate As Additive

机译：碳酸钾为添加剂的Kdp晶体的生长与表征

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Potassium carbonate (K_2CO_3) as a new additive was added into the potassium dihydrogen phosphate (KDP) solutions in different molar ratios. The metastable zone width of KDP solution with 5 M% K_2CO_3 was determined and compared with the pure system. A good-quality KDP crystal with 5 M% K_2CO_3 additive was grown by the slow cooling method from aqueous solution by the rotation of the seed crystal with the in-house built rotation assembly. Dielectric measurements were carried out on pure and doped KDP crystals at various temperatures ranging from 313 to 423 K by the conventional parallel plate capacitor method, and it indicates that 5 M% K_2CO_3 addition leads to low dielectric constant value dielectrics. The addition of 5 M% K_2CO_3 and proper rotation of seed crystal (40rpm) improves the quality of the crystal. The high-resolution X-ray diffractometry (HRXRD) analysis shows that the crystalline perfection of the crystal grown in these optimum conditions is extremely good without having any internal structural grain boundaries and mosaic nature. The crystals grown by these optimum conditions show positive effects in the various characterization techniques. The effect of additive on the growth, nucleation kinetics, structural, nonlinear optical, laser-induced damage threshold and optical properties have been investigated by the studies on pure and K_2CO_3-doped (in different concentrations viz., 1, 5 and 10 M%) KDP crystals grown under identical conditions.
机译：将碳酸钾（K_2CO_3）作为新的添加剂以不同的摩尔比添加到磷酸二氢钾（KDP）溶液中。确定了具有5 M％K_2CO_3的KDP溶液的亚稳区域宽度，并将其与纯系统进行了比较。通过使用内部构建的旋转组件旋转籽晶，通过缓慢冷却方法从水溶液中生长出具有5 M％K_2CO_3添加剂的优质KDP晶体。通过常规的平行板电容器方法，在313至423 K的不同温度下，对纯净和掺杂的KDP晶体进行了介电测量，结果表明添加5 M％的K_2CO_3会导致介电常数值低的介电常数。添加5 M％K_2CO_3和适当旋转籽晶（40rpm）可以改善晶体质量。高分辨率X射线衍射（HRXRD）分析表明，在这些最佳条件下生长的晶体的晶体完美性极好，没有任何内部结构晶界和镶嵌性质。通过这些最佳条件生长的晶体在各种表征技术中显示出积极的作用。通过对纯和K_2CO_3掺杂（不同浓度分别为1、5和10 M％）的研究，研究了添加剂对生长，成核动力学，结构，非线性光学，激光诱导的损伤阈值和光学性质的影响。 ）KDP晶体在相同条件下生长。

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