Abstract

A colloid method is used to synthesize zinc sulfide and a number of phosphors based on it. The structural and spectrooptical properties of zinc sulfide have been studied, along with manganese-containing zinc sulfide phosphors obtained in the presence of sodium chloride and without it. It is shown that the solid substitution solution Zn_xMn_(1−x)S is formed when the sulfides are deposited jointly. Moreover, deposition in the presence of sodium chloride makes it possible to obtain orange luminescence (wavelength 600 nm) of the zinc-sulfide phosphors and to increase its intensity by a factor of 3.5. This effect is caused by the capability of sodium chloride to partially alter the crystallographic symmetry and to increase the lattice parameter of zinc sulfide, and this promotes the transport of manganese into an octahedral interstice.

© 2015 Optical Society of America

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