Some Properties of CdS and ZnS Nanostructured Semiconductor

The book contains three major parts. The 1st chapter contains a brief introduction of 'Nano' structured materials and different ways of synthesizing it. A small description of group II-IV semiconductor is also incorporated. In the 2nd chapter, the details of the preparation methods, and brief discussions on the various characterization techniques used in the work have been presented. In the 3rd chapter microstructural & optical properties of nanostructured ZnS and CdS semiconductors are discussed. The sizes of ZnS could be changed by changing the concentration of 2-mercaptoethanol (ME). In case of CdS, the cubic zinc blende (ZB) and hexagonal wurtzite (WZ) crystal structures could be synthesized simply by changing the concentration of the (ME). Thus, the present investigation reveals that crystal phase as well as size can be controlled by a simple chemical method. Physical properties such as optical, thermal, mechanical and magnetic of crystalline materials strongly depend on their crystal structure, which have potential applications in areas such as electronics, medical science and environmental science.