Deep Penetration of Implanted Po in CdS

  • P. F. Engel
  • F. Chernow


The distribution of 25 KeV Po210 implanted into CdS platelets was determined by energy analyzing the α-particles emitted by Po210. Two samples were implanted along an axial channeling direction, and one along a planar channeling direction.

A new diffusion model was developed. The predicted distribution function as well as the distribution obtained from multistream diffusion theory were fitted to the experimental data. The present theory yielded a substantially better fit in the samples implanted along the axial channeling direction, in which there was measurable activity at a depth of 1μ. Both theories yielded comparable fits in the sample implanted along the planar channeling direction, in which there was measurable activity over a depth of 5000Å.


Residual Activity Deep Penetration Native Defect Native Trap Experimental Energy Spectrum 
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  1. 1.
    J.A. Davies, P. Jespersgard, Can. J. Phys. 44, 1631 (1966).ADSCrossRefGoogle Scholar
  2. 2.
    E.V. Kornelsen, F. Brown, J.A. Davies, D. Domeij, G.R. Piercy, Phys. Rev. 136, A849 (1964).ADSCrossRefGoogle Scholar
  3. 3.
    M. Sparks, Phys. Rev., 184, 416 (1969).ADSCrossRefGoogle Scholar
  4. 4.
    G. Eldridge, F. Chernow, G. Ruse, J. Appl. Phys. 44, 3858 (1973).ADSCrossRefGoogle Scholar
  5. 5.
    W.S. Johnson, J.F. Gibbons, Projected Range Statistics in Semiconductors (Stanford University Bookstore, Stanford, Calif., 1969).Google Scholar
  6. 6.
    H.H. Anderson, P. Sigmund, Mat. Fys. Medd. Dan. Vid. Selsk, 34, No. 15 (1966).Google Scholar
  7. 7.
    Handbood of Mathematical Functions, edited by M. Abramovitz and I.A. Stegun, National Bureau of Standards, Applied Mathematics Series 55 (U.S. GPO, Washington, D.C., 1964).Google Scholar
  8. 8.
    C.M. Lederer, J.M. Hollander and I. Perlman, Table of Isotopes (Wiley, New York, 1967).Google Scholar
  9. 9.
    G. Eldridge, P.K. Govind, D.A. Nieman and F. Chernow, Proceedings of the European Conference on Ion Implantation (Peter Peregrimes, Stevenage, Hertfordshire, England, 1970), p. 143.Google Scholar
  10. 10.
    P.F. Engel, J.A. Borders and F. Chernow, J. Appl. Phys. 45, 38 (1974).ADSCrossRefGoogle Scholar
  11. 11.
    B. Domeij, I. Bergstrom, J.A. Davies, J. Uhler, Arkiv Fysik 24, No. 29, 399 (1963).Google Scholar
  12. 12.
    G. Eldridge, Ph.D. Thesis (unpublished).Google Scholar
  13. 13.
    J. Bourgoin, D. Peak and J.W. Corbett, J. Appl. Phys. 44, 3022 (1973).ADSCrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1975

Authors and Affiliations

  • P. F. Engel
    • 1
  • F. Chernow
    • 1
  1. 1.Department of Electrical EngineeringUniversity of ColoradoBoulderUSA

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