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首页> 外文期刊>Journal of Crystal Growth >Noncentrosymmetric mixed-cation borate: Crystal growth, structure and optical properties of Cs_2Ca[B_4O_5(OH)_4]_2·8H_2O
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Noncentrosymmetric mixed-cation borate: Crystal growth, structure and optical properties of Cs_2Ca[B_4O_5(OH)_4]_2·8H_2O

机译：非中心对称混合阳离子硼酸盐：Cs_2Ca [B_4O_5（OH）_4] _2·8H_2O的晶体生长，结构和光学性质

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摘要

A single crystal of the new noncentrosymmetric material Cs_2Ca[B_4O_5(OH)_4]_2·8H_2O has been grown by a slow evaporation method with sizes up to 10 × 10 × 5 mm~3 using an aqueous acetone solution as a solvent. The crystal structure of this compound was determined by single crystal X-ray diffraction. It crystallizes in the Orthorhombic space group P2_12_12_1 with lattice parameters a = 11.5158(7) A, b = 12.8558(7) A, c=16.7976(10) A and Z=4. The optical transmittance spectrum was measured on the Cs_2Ca[B_4O_5(OH)_4]_2·8H_2O crystal, which exhibits an absorption edge at about 190 nm in the UV region. The powder second-harmonic generation (SHG) measurement indicates that Cs_2Ca[B_4O_5(OH)_4]_2·8H_2O is phase-matchable and the signal is about half that of a KDP (KH_2PO_4) standard. Theoretical calculation shows it has moderate birefringence, and identifies the contribution of cations to the optical properties.
机译：新型非中心对称材料Cs_2Ca [B_4O_5（OH）_4] _2·8H_2O的单晶已通过缓慢蒸发法以丙酮水溶液为溶剂生长，尺寸达到10×10×5 mm〜3。该化合物的晶体结构通过单晶X射线衍射测定。它在正交晶空间群P2_12_12_1中结晶，晶格参数为a = 11.5158（7）A，b = 12.8558（7）A，c = 16.7976（10）A和Z = 4。在Cs_2Ca [B_4O_5（OH）_4] _2·8H_2O晶体上测量光学透射光谱，该晶体在UV区域中在约190nm处显示吸收边缘。粉末二次谐波（SHG）测量表明Cs_2Ca [B_4O_5（OH）_4] _2·8H_2O具有相位匹配性，并且信号约为KDP（KH_2PO_4）标准信号的一半。理论计算表明它具有适度的双折射，并确定了阳离子对光学性能的贡献。

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  • 来源
    《Journal of Crystal Growth》 |2013年第1期|176-181|共6页
  • 作者

    Hongwei Huang; Ran He; Wenjiao Yao; Zheshuai Lin; Chuangtian Chen; Yihe Zhang;

  • 作者单位

    School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China;

    Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;

    Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;

    Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;

    Center for Crystal Research and Development, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China;

    School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    A1.Crystal structure; A2.Growth from solutions; A3.Nonlinear optical crystals; B1.Borates;

    机译：A1。晶体结构;A2。解决方案的增长;A3。非线性光学晶体;B1.Borates;

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