Structural and Optical properties of Cadmium Sulfide (CdS) Nanoparticles

Abstract

In this study is the Cadmium Sulfide ( ) was prepared and its structure and optical properties has been studied. The ( ) compound was prepared by using a chemical method, its optical properties was studied by UV/VIS absorption spectrum ,and the use of models (Tauc), the energy gap was 3.1783 eV, absorption coefficient of (CdS) has been calculated which was in the range of (2.4 to 3.3) electron volts. The structural properties are studied using x-rays diffraction. The results show that the type of crystal structure of (CdS) was hexagonal [wutzeile]. The distance between the crystalline levels(d-spacing), lattice constant and the crystallite size was calculated using Debye –Scherrer’s formula. Finally dislocation density was calculated