化学学报 ›› 2001, Vol. 59 ›› Issue (5): 724-728. 上一篇    下一篇

研究论文

紫外倍频晶体硫氰酸汞镉的生长习性与形成机理研究

姜雪宁;袁多荣;许东;吕孟凯;郭世义;于文涛;张光辉;方奇   

  1. 山东大学晶体材料研究所.济南(250100)
  • 发布日期:2001-05-15

Growth habits and mechanism of cadmium merury thiocyanate crystal for laser diode frequabcy doubling

Jiang Xuening;Yuan Duorong;Xu Dong;Lu Mengkai;Guo Shiyi;Yu Wentao;Zhang Guanghui;Fang Qi   

  1. Shandong Univ, Inst Crystal Mat.Jinan(250100)
  • Published:2001-05-15

从结晶化学角度出发,研究了硫氰酸汞镉(简写为CMTC〕结构是的基本结构单无即H~gS~4和CdN~4R的结晶方位与晶体各簇晶面间的对应关系。在对CMTC的生长溶液结构测定和推理基础上,提出该晶体生长基元的结构形式和生长基元向各簇晶面上堆积的规律。进而讨论了该晶体生长习性的形成机理。实验表明,CMTC的生长溶液中存在着与晶体结构是相同的基团即阴离子多面体生长基元。随着生长条件和变化,生长基元的维度有所不同,不同维度的生长基元往各簇晶面上堆积速率也发生相应改变,从则解释了CMTC的生长习性和晶体形貌的多变性。

关键词: 硫氰酸汞镉, 晶体生长, 溶液结构, 生长基元

Growth habits of cadmium mercury thiocyanate crystal (CMTC0 in solutions and the relation between its structure and morphology have been studied. On the basis of the structural investigation of CMTC growing solution, the growth units of CMTC crystak H~gS~4 and CdN~4 tetrahedr, which have the same corrdination polyedron structures as the anion groups in the crystal lattice, are proposed. The growth mechanisms of various morphologies of CMTC ncrystal are well explained.

Key words: CRYSTAL GROWTH

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