Abstract

This paper discusses the structure parameters and the optical and luminescence properties of Cd1−xZnxS phosphor—a solid solution based on zinc and cadmium sulfides—that contains one of the following pairs of dopant ions: copper and silver, manganese and silver, or manganese and copper. The synthesis and simultaneous doping of the phosphor are carried out by colloid chemistry. It is shown that doping with two ions in combination decreases the crystallographic symmetry of the cubic lattice of the matrix solid solution. Broadening of the photoluminescence spectrum of the doped solid solutions is observed in the long-wavelength region. Doping the phosphor with copper paired with silver makes it possible to obtain white luminescence and to increase its emission intensity by a factor of 2 at wavelength 500 nm by comparison with the undoped solid solution.

© 2017 Optical Society of America

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