Effect of shock-wave treatment of zinc sulfide on properties of ZnS:Cu,Mn phosphor

Abstract

Method was developed for raising the brightness of photo-and electroluminescence from ZnS:Cu,Mn phosphor in dc and ac fi elds by preliminary shock-wave treatment of a starting zinc sulfi de placed in a closed copper ampoule.

Effect of shock wave treatment on luminescence of ZnS:Cu,Cl phosphors

“…5 and by similar results obtained in [11] using different treatment experiment conditions. Also in our previous publications [5,6] same effect of increased brightness by SWT treatment was shown for the ZnS:Cu,Mn phosphors.…”

“…Therefore there is a search for new approaches of improvements of their brightness. For example, we have suggested to use electron beam, plasma or shock wave treatment of ZnS and SrGa 2 S 4 precursors in order to create structural defects and thus improve diffusion and solubility of activator (copper) or sulfur in luminescent matrix and improve brightness [2][3][4][5][6]. In the works [7][8][9] it is suggested to fabricate phosphor in a highpressure vessel in the conditions of combustion and/or explosion of explosive substances, which is placed into a vessel together with a charge mixture.…”