Abstract

Luminescence properties of rare earth doped ZnS were extensively studied recently. The main purpose of these works was to optimize the synthesis methods for phosphors, to study the properties of luminous centers and energy transfer from ZnS→Ln³⁺, and by using the rare earth ion as a local structural probe, to study the crystal field properties of the environment. The studies of trivalent thulium Tm³⁺ doped in crystalline ZnS was reported by several authors^[1,2,3]. The experimental results of emission properties and crystal field parameters of ZnS:Tm³⁺ were mentioned.

© 1984 Optical Society of America