中华医学超声杂志

应用化学 ›› 1988, Vol. 0 ›› Issue (4): 67-69.

• 研究简报 • 上一篇    下一篇

K3Dy(PO4)2晶体的生长

李红军, 洪广言, 越淑英   

  1. 中国科学院长春应用化学研究所
  • 收稿日期:1987-07-25 修回日期:1987-12-26 出版日期:1988-08-10 发布日期:1988-08-10
  • 基金资助:
    国家自然科学基金

GROWTH OF K3Dy(PO4)2 CRYSTAL

Li Hongjun, Hong Guangyan, Yue Shuying   

  1. Changchun institute of Applied Chemistry, Academia Sinica
  • Received:1987-07-25 Revised:1987-12-26 Published:1988-08-10 Online:1988-08-10

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摘要： 二磷酸钕钾作为新型的化学计量比激光材料已有报导[1].由于二磷酸稀土钾盐具有独特的结构性质,即PO4四面体与LnO7十面体的相互隔离,使Ln3+-Ln3+之间的相互作用减少,荧光猝灭较小[2],以及在磷酸盐晶体中有较高的热稳定性,因而引起人们的关注.

关键词: 晶体生长, 二磷酸镝钾, 晶胞参数, 晶体光谱

Abstract: The crystal of K3Dy(PO4)2 has been grown from KCl-KF melt.A single crystal in size of 1.5?1.2?0.5mm3 was obtained under certain ratio of rare-earths to flux and by proper controlling the quantity of volatilization.The composition K3Dy(PO4)2 was identified by chemical analysis.X-ray diffractometry proved that the crystal belongs to monoclinic system with space group P21/m.The lattice parameters of the crystal were calculated. It is found that the cell volume of crystal reduces as the atomic number of rare earth in K3Ln(Po4)2 increases, ion radius of Ln3+ decreaces and the complex ability increases. The infrared,absorption,excition,and fluorescene spectra of K3Dy(PO4)2 are also reported.

Key words: Crytal growth, Potassium dysprosium diphosphate, Lattice paramters, Spectra of crystal

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