1949
DOI: 10.1149/1.2776775
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Electron Traps and Infrared Stimulation of Phosphors

Abstract: Extensive studies have been made of the relation between electron trap distributions, as shown by thermoluminescence experiments, and the infrared stimulation characteristics of phosphors. A large number of conventional zinc and alkaline earth sulfide phosphors, as well as the special types of infrared sensitive phosphors, have been investigated. Experiments were made over a wide range of temperature from 77 to 600 K. The principal results of these experiments are summarized as follows:1. There appears to be n… Show more

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Cited by 53 publications
(20 citation statements)
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“…Experiments show indeed that recapture takes place during spontaneous decay 8 ; but the phenomenon is found to be much more important under infrared stimulation, 9 and the better the crystallization, the more pronounced is the phenomenon, in agreement with the views expressed above. O F the several processes suggested for the formation of the D layer, the following appear to have the strongest support:…”
supporting
confidence: 87%
“…Experiments show indeed that recapture takes place during spontaneous decay 8 ; but the phenomenon is found to be much more important under infrared stimulation, 9 and the better the crystallization, the more pronounced is the phenomenon, in agreement with the views expressed above. O F the several processes suggested for the formation of the D layer, the following appear to have the strongest support:…”
supporting
confidence: 87%
“…The same absorption bands have also been found in conventionally prepared zinc and cadmium sulfide by many workers (25)(26)(27)(28)(29) as stimulation or quenching bands in measurements of fluorescence or photoconductivity. In these cases, simultaneous or previous excitation with light of energy near that necessary to excite across the band gap was necessary.…”
Section: Difjuse Reflectance Spectrumsupporting
confidence: 68%
“…[19][20][21][22] Infrared irradiation during phosphorescence causes stimulation or quenching of the phosphorescence or both. Further, it was found recently that excited ZnS:Cu phosphors emit infrared fluorescence upon irradiation by long wavelength visible or infrared light.…”
Section: G Influence Of Infrared Radiation On Fluorescence Phosphormentioning
confidence: 99%