Turkish Journal of Physics

Radioluminescent Properties of CdS(Ag) Crystals
Ruhi KAPLAN
Physics Department, University of Erciyes,
38039 Kayseri, Turkey
and
F. Esen ÖZSAN
Department of Physics, Middle East Technical University,
06531 Ankara-TURKEY

Abstract: The radioluminescent proporties of silver-doped cadmium sulphide, CdS(Ag), crystals excited by 5.5 MeV a -particles from an ²⁴¹Am radioactive source have been investigated. The emission spectra, decay profiles and thermal quenching curves were obtained accurately at temperatures between 80 K and 300 K. Two main radioluminescent emission bands centered at about 5760 \AA\ and 5940 \AA\ were observed. Their decay curves were found to be fast and nonexponential. From the thermal quenching of radioluminescence, the activation energies of centers responsible for these emissions were determined. The results are interpreted as the radioluminescence is possibly due to donor-acceptor pair recombinations.

Key Words: Radioluminescence, CdS(Ag), Recombination.

Turk. J. Phys., 24, (2000), 689-699.
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Other articles published in the same issue: Turk. J. Phys.,vol.24,iss.6.