Electro- and photoluminescence of compounds based on doped zinc sulfide in the 500–750-nm range

Abstract

UDC 535.376The influence of atmospheric passivation on the electro-and photoluminescent properties of ZnS powders doped with In and/or CuCl is investigated. The processes proceeding in the material during thermal doping with In and/or CuCl as well as participation of oxygen in forming the electro-and photoluminescent radiation centers are discussed. The possibility of creating electro-and photoluminophors based on ZnS that have a continuous spectrum in the visible range with the same spectral density is shown. An electroluminophor based on ZnS:In,Cu,Cl that emits radiation with practically the same spectral density in the 550-750-nm range has been created as well as a photoluminophor based on ZnS:In that emits similarly within the range 500 < λ < 700 nm.