Preparation and Characterization of Doped CdS and ZnS Nanostructures

Abstract

Owing to unique size dependent optical, electronic and magnetic properties, CdS and ZnS have gained considerable attention in various optoelectronic and spintronic applications. Also, their wide band gap in visible range makes them suitable for solar cell application. At nanoscale, these materials exhibit entirely different properties as compared to their bulk counterpart due to large surface to volume ratio and quantum-confinement effect. Further, the properties of these materials can be altered by tailoring the particle size and suitable cationic doping. Therefore, the main focus of this work is to understand the size effect and to systematically investigate transition metal (TM) (Fe3+, Co2+) and rare earth (RE) (Dy3+, Tb3+) doped CdS and ZnS nanostructures with an emphasis to their optical and magnetic properties.