中国物理B ›› 1993, Vol. 2 ›› Issue (8): 577-582.doi: 10.1088/1004-423X/2/8/003

• • 上一篇    下一篇

POSITRON ANNIHILATION WITH VACANCIES IN THIN SURFACE LAYER OF As HEAVILY DOPED Si

卢志恒1, 王大椿1, G.K?gel2   

  1. (1)Department of Physics, Beijing Normal University, Beijing 100875, China; (2)Institut für Kern-Festk?rperphysik, Bundeswehr Universit?t, Germany
  • 收稿日期:1992-06-30 出版日期:1993-08-20 发布日期:1993-08-20
  • 基金资助:
    Project supported in part by the National Natural Science Foundation of China and in part by the Department of Science and Research of Germany.

POSITRON ANNIHILATION WITH VACANCIES IN THIN SURFACE LAYER OF As HEAVILY DOPED Si

LU ZHI-HENG (卢志恒)a, WANG DA-CHUN (王大椿)a, G.K·gelb   

  1. a Department of Physics, Beijing Normal University, Beijing 100875, China; b Institut für Kern-Festk$\ddot{\rm o}$rperphysik, Bundeswehr Universit$\bar{\rm a}$t, Germany
  • Received:1992-06-30 Online:1993-08-20 Published:1993-08-20
  • Supported by:
    Project supported in part by the National Natural Science Foundation of China and in part by the Department of Science and Research of Germany.

摘要: The lifetime spectroscopy of slow positron accelerated with linear accelerator and pulse punch system was first used to analyze the vacancies in the thin surface layer of silicon heavily doped with arsenic. The results demonstrated that no mono-vacancy was detected to support the arsenic-vacancy complex models for explaining the electrical deactivation mechanism of arsenic-heavily-doped silicon.

Abstract: The lifetime spectroscopy of slow positron accelerated with linear accelerator and pulse punch system was first used to analyze the vacancies in the thin surface layer of silicon heavily doped with arsenic. The results demonstrated that no mono-vacancy was detected to support the arsenic-vacancy complex models for explaining the electrical deactivation mechanism of arsenic-heavily-doped silicon.

中图分类号:  (Positron annihilation)

  • 78.70.Bj
68.55.Ln (Defects and impurities: doping, implantation, distribution, concentration, etc.) 78.66.Db (Elemental semiconductors and insulators) 73.61.Cw (Elemental semiconductors) 68.35.Dv (Composition, segregation; defects and impurities) 68.47.Fg (Semiconductor surfaces)