Electro‐optical Properties of ZnSe Doped with Gd and (Ag,Gd) Phosphors

Abstract

To understand the position of donor-acceptor level and nature of electronic state of activators and co-activators, the photo luminescence (PL) and electroluminescence (EL) emission spectra of Znse: Gd and Zn Se: (Ag, Gd) phosphors, have been recorded at room temperature. The method of preparation of phosphors is described. Voltage and frequency dependence of electroluminescent has also b been described. The light output varies as) been studied for a wide range of frequencies. It is observed that the EL emission spectra of these phosphors are shifted towards lower wavelength sides on increasing the field frequency.

Luminescence in Zinc Selenide Doped with Sn and (Sn, Dy) Phosphors

“…Doubly activated ZnSe phosphors have been found to have good electroluminescence (EL) emission. [1][2][3][4][5][6][7]8,9,10,11,12] Rare earth ions are sought after as laser dopants in many phosphor lattices as well as their use in color television phosphors. Thermoluminescence (TL) is one of the thermally stimulated phenomena that offers a sensitive technique for determining the degree of the crystal's trap energy.…”