Skip to main content
SpringerLink
Log in

A proposed model for the photoluminescence of ZnS : CdS : Ag : Ni : Co phosphors

  • Atomic and Molecular Physics
  • Published:
Acta Physica Hungarica

Abstract

Phosphors with 41% ZnS: 59% CdS: 0.009% Ag: 0.00065% Ni and containing various concentrations of Co dopant are investigated with regard to the fundamental photoluminescence processes involved. The wavelengths of maximum emission intensities in the spectral distributions of excitation and emission remain unaltered with increase in Co concentration. Thus the energy level structures with the silver impurity centres are not affected by the cobalt content.

The temperature dependence of thermoluminescence has been studied over the temperature range of 77 K to 800 K. The thermoluminescence curves show peaks due to chlorine, cadmium, cobalt and nickel impurities. A new trap is identified at 0.065% concentration of cobalt which has an energy of 1.09 eV. An energy band model is proposed to explain this phenomenon. It is suggested that this peak is due to the association of cobalt and silver centres.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. N. Arpiarian and D. Curie, C.R. Acad. Sci. Paris,234, 75, 1952.

    Google Scholar 

  2. G.F.J. Garlick and M.J. Dumbleton, Proc. Phys. Soc.,B67, 442, 1954.

    Article  ADS  Google Scholar 

  3. W. Hoogenstraaten, Philips Res. Repts.13, 515, 1958.

    Google Scholar 

  4. I. Broser, H.E. Cumblich and R. Moser, Physik Verhandl.,3, 227, 1963; H.E. Gumlich Meeting.

    Google Scholar 

  5. H.E. Gumlich and H.J. Schulz, J. Phys. Chem. Solids.,27, 187, 1966.

    Article  ADS  Google Scholar 

  6. M.S. El Manharawy, Acta Physica Polonica,A40, 421, 1971.

    Google Scholar 

  7. G. F. J. Garlick, Handbuch der Phys.,26, 1, 1958.

    Google Scholar 

  8. M. Schön, Z. Physik,119, 463, 1942.

    Article  ADS  Google Scholar 

  9. H.A. Klasens, Nature,158, 306, 1946.

    Article  ADS  Google Scholar 

  10. H.A. Klasens, W. Ramsden and C.J. Quantie, J. Opt. Soc. Am.,38 60, 1948.

    Article  ADS  Google Scholar 

  11. M.E. Wise and H.A. Klasens, J. Opt. Soc. Am.,38, 226, 1948.

    Article  ADS  Google Scholar 

  12. E.S. Krylova, Dokl. Akad. Nauk. S.S.S.R.,64, 495, 1949.

    Google Scholar 

  13. A.H. Booth, Can. J. Chem.,32, 214, 1954.

    Article  Google Scholar 

  14. F.A. Kröger, J. Opt. Soc. Am.,39, 670, 1949.

    Article  ADS  Google Scholar 

  15. F.A. Kröger and J. Dikhoff, Physica,16, 297, 1950.

    Article  ADS  Google Scholar 

  16. M. Schön, Z. Naturf.,6, 251, 1951.

    ADS  Google Scholar 

  17. H. Klasens, J. Electrochem. Soc.,100, 72, 1953.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Electron Microscope and Thin Films Laboratory, National Research Center, Dokki, Cairo, Egypt

    Z. S. El Mandouh

Authors
  1. Z. S. El Mandouh
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

El Mandouh, Z.S. A proposed model for the photoluminescence of ZnS : CdS : Ag : Ni : Co phosphors. Acta Physica Hungarica 63, 7–11 (1988). https://doi.org/10.1007/BF03155751

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03155751

Keywords

Search

Navigation