Voltage Dependence of Cathode-Ray Efficiency of Phosphors: Phosphor Particles with Nonluminescent Coatings

The cathodoluminescence intensity as a function of the accelerating potential was measured for a number of powdered ZnS:Cu phosphors, each of which had a thin nonluminescent ZnS coating of known thickness deposited upon every grain. The luminescence efficiency is dominated by the power loss of the e...

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Bibliographic Details
Published in:Journal of applied physics 1972-01, Vol.43 (7), p.3073-3079
Main Authors: Kingsley, J.D., Prener, J.S.
Format: Article
Language:English
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Summary:The cathodoluminescence intensity as a function of the accelerating potential was measured for a number of powdered ZnS:Cu phosphors, each of which had a thin nonluminescent ZnS coating of known thickness deposited upon every grain. The luminescence efficiency is dominated by the power loss of the electron beam in the nonluminescent coating. The efficiency-voltage curves were analyzed in terms of the electron power loss function proposed by Makhov. Very good agreement with the experimental results was achieved after correcting for the nonplanar surface of the phosphor particles and the intrinsic surface deexcitation.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.1661662