1957
DOI: 10.1149/1.2428461
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Electroluminescence of Zinc Sulfoselenide Phosphors with Copper Activator and Halide Coactivators

Abstract: The choice of halide coactivators in the synthesis of electroluminescent powder phosphors of the normalZnfalse(S:normalSefalse):normalCu system markedly affects the spectral distribution and efficiency of the phosphors. Iodide coactivated normalZnS:normalCu can be prepared as a blue‐emitting phosphor exhibiting no shift in spectral emission with field excitation from 20 to 50,000 cps. Several‐fold increase in radiant output over the chloride coactivated normalZnS:normalCu phosphor is obtained by using io… Show more

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Cited by 15 publications
(9 citation statements)
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“…Spectra~ em/ss/on.--For SnO+ pulses the spectral emission from films is similar to that from the powder counterparts for ZnS: Cu,C1 and ZnS: Cu,Br (5). In the ZnS:Cu,I films, the broad band of ZnS:Cu peaking in the red (6) was obtained in addition to the blue band.…”
Section: (B)mentioning
confidence: 64%
See 1 more Smart Citation
“…Spectra~ em/ss/on.--For SnO+ pulses the spectral emission from films is similar to that from the powder counterparts for ZnS: Cu,C1 and ZnS: Cu,Br (5). In the ZnS:Cu,I films, the broad band of ZnS:Cu peaking in the red (6) was obtained in addition to the blue band.…”
Section: (B)mentioning
confidence: 64%
“…Where this assumption is applicable, the intensity of emission of an isolated rare earth ion can be expected to show a direct dependence on its interaction distances in the crystal. The related over-all binding energy of a given ion can be considered to be a combination of its electrostatic binding energy (such as can be calculated on the basis of a hard sphere model) (5) and the modifying effects due to the nonspherical distribution of charge about the given ion and its neighbors (6). Where rare earth ions can interact more complex effects may be expected.…”
Section: Introductionmentioning
confidence: 99%
“…By preparing solid solutions of at least two semiconductors with appropriate bandgap widths, one can visualize a host lattice of any bandwidth within the desired range, and thus electroluminescent phosphors capable of emitting any visible colour could be conveniently synthesized. Hegyi et al (1957) andKazankin et al (1959) prepared efficient electroluminophors starting from the mixed matrices composed of ZnS and ZnSe. The emission colour varied from blue to red, depending on the resultant forbidden bandwidth of the final product.…”
Section: Introductionmentioning
confidence: 99%
“…From a practical point of view, the phosphor ZnSe: Cu: Br has been proposed as a possible red color TV phosphor (1) and is an electroluminescent material (2,3) ; yellow-emitting Zn(S,Se) :Cu:Br has been shown to be a brighter electroluminescent phosphor than ZnS: Mn: Cu and has been used in an EL TV display panel (4).…”
mentioning
confidence: 99%