Thermally Responsive Electroluminescence in ZnS: Mn Phosphors: Experimental Insights

Usha Shukla; Annapurna Mishra

Abstract

ZnS: Mn phosphors and thin film technologies have been used to create alternative current thin film light emitters. Establishing a precise model for these devices becomes challenging because they rely on frameworks that have a definitive effect on the final product, such as the size of the molecules used, the phosphor fabrication process, and the doping concentration, the purity of ZnS, the device structure, and so forth. The ZnS: Mn phosphor, which emits yellowish-orange light, has remained dominant from its initial commercial use in monochromic displays. The phosphorescence has an extremely long lifetime and high chance of radiative recombination. The solid inorganic materials made up of a host lattice that has been lightly doped with impurities to act as sensitizers and activators. As activators or sensitizers, rare-earth ions or transition metals are typically employed electroluminescence (EL) emission is influenced by a number of parameters, including applied voltage, applied frequency, material ageing, and material kinds. This study demonstrates how the temperature of the EL cell affects the brightness of the EL. As the EL cell's temperature rises, it is possible to see a decrease in the saturation level of EL brightness as well as a decrease in the threshold voltage. This paper reports the preparation of ACTFEL cell and showing the influence of temperature on the brightness of it with varying voltage.

Abstract

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