Effect of Fe, Co, Ni and Cd CO?activation on luminescence emission and decay of CaS:Ce phosphors
- 1 January 1982
- journal article
- review article
- Published by Taylor & Francis in Radiation Effects
- Vol. 60 (1-4) , 155-160
- https://doi.org/10.1080/00337578208242788
Abstract
Cathodoluminescence (CL), photoluminescence (PL), thermoluminescence (TL) spectra, and decay after laser beam excitation of cerium-activated CaS phosphors doped with Fe, Co, Ni or Cd have been investigated. These studies shed some light on the nature of luminescence centres and the association of various groups of traps with the dopants. Effect of concentiation variation of these four elements on emission and decay characteristics of CaS:Ce phosphor has been discussed. In contrast with the earlier publication [W. Lehmann and F. M. Ryan, J. Electrochem. Soc. 119, 275 (1972)] we have found that Ni is an effective killer, Cd ineffective and Co has no clearly observable effect. Fe has also been found to be an effective killer for CaS:Ce phosphors. Ni and Fe appear to be more effective quenchers for shorter wavelength emission band characteristic of Ce in CaS.Keywords
This publication has 15 references indexed in Scilit:
- Photoluminescence of CaS: Ce, Na PhosphorJapanese Journal of Applied Physics, 1980
- Relative location of traps and luminescence centres in CaS:Pd phosphors as revealed by photo-, Thermo- and electroluminescence studiesSolid State Communications, 1980
- Spectral variations and retrapping processes in CaS:Bi dosimeterRadiation Effects, 1980
- Luminescence des centres associés Bi3+‐Na+ et Bi3+‐Li+ dans le phosphore CaSPhysica Status Solidi (b), 1980
- CaS: Bi as U.V. dosimeterMaterials Research Bulletin, 1979
- Phonon Sidebands in Emission and Excitation Spectra for Ce3+ in CaSJournal of the Physics Society Japan, 1979
- Cathodoluminescence of CaS:Ce phosphorJournal of Physics D: Applied Physics, 1976
- Activators and co-activators in calcium sulfide phosphorsJournal of Luminescence, 1972
- Cathodoluminescence of CaS:Ce[sup 3+] and CaS:Eu[sup 2+] PhosphorsJournal of the Electrochemical Society, 1971
- Alkaline Earth Sulfide Phosphors Activated by Copper, Silver, and GoldJournal of the Electrochemical Society, 1970