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应用科学学报 ›› 1987, Vol. 5 ›› Issue (1): 61-65.

• 论文 • 上一篇    下一篇

碲镉汞晶体辐射损伤的高分辨电镜研究

宋祥云1, 温树林1, 马可军2   

  1. 1. 中国科学院上海硅酸盐研究所;
    2. 中国科学院上海技术物理所
  • 收稿日期:1984-07-13 修回日期:1984-11-03 出版日期:1987-03-31 发布日期:1987-03-31

A STUDY OF RADIATION DAMAGE IN (Hg·Cd)Te CRYSTAL BY HREM

SONG XIANGYUN1, WEN SHULIN1, MA KEJUN2   

  1. 1. Shanghai Institute of Ceramics, Academia Sinica;
    2. Shanghai Institute of Technical Physics, Academia Sinica
  • Received:1984-07-13 Revised:1984-11-03 Online:1987-03-31 Published:1987-03-31

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摘要： 用高分辨电子显微镜观察了碲镉汞晶体的显微结构.发现在[110]方向观察时结构有较强的电子辐射损伤.用电子衍射、能谱和高分辨电子显微术的进一步研究表明,电子辐射作用可使碲镉汞晶体析出CdTe;辐射还可使某些区域出现结构无序化.此外,碲镉汞晶体在电子辐射作用下还可发生原子位移,导致超晶格现象的出现.

Abstract: The microstructure of (Hg. Od) Te crystal was studied by HREM. An electron radiation damage was found along the[110] direction of the crystal. A further study of EDAX, HREM and electron diffraction showed that the CdTe phase could be segregated from (Hg. Od) Te crystal by electron radiation, and structure disordering could occur in some areas due to the radiation. Moreover, atom displacements were occurred in the (Hg. Od) Te crystal due to the electron radiation, resulting superlattice phenomenon in the crystal.