Method of manufacturing a phosphor for use in an electroluminesc

Compositions – Inorganic luminescent compositions – Zinc or cadmium containing

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2523016R, C09K 1154, C09K 1156

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active

056351119

ABSTRACT:
A phosphor for use in an electroluminescent panel is produced by firing a material primarily composed of powder of zinc sulfide, preferably with high-frequency induction heating, under a predetermined pressure in an atmosphere of a halogen gas as a coactivator. The phosphor thus produced is of good emission characteristics having minimum particle size and impurity concentration irregularities.

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patent: 5217695 (1993-06-01), Augustine et al.

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