Abstract

The color shifting from yellow to green of electroluminescent emission from Zn 1– x Mg x S:Mn alternating current thin film electroluminescent (ACTFEL) devices has been achieved by changing the Mg composition in the phosphor layers. Zn 1– x Mg x S:Mn solid solution thin films in the composition range x=0–0.25 have been prepared by multi source deposition technique. The commission internationale de l'Eclairge (CIE) color co-ordinates of the ACTFEL devices prepared by these phosphor layers show a shifting from yellow ( x=0.55, y=0.45) towards green ( x=0.49, y=0.5).

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