Characterization of CdS thin films and nanoparticles by a simple Chemical Bath Technique

Cadmium Sulfide (CdS) thin films and nanoparticles were prepared by using simple Chemical Bath Deposition technique. The thickness of the prepared thin films are in the range of 106-117 nm. Better transmittance behavior in the visible region along with an energy gap around 2.3 eV of as-prepared CdS thin films confirms the candidature for solar cell applications. The structural analysis of the prepared thin films and nanoparticles was carried out by Powder X-ray diffraction technique using CuKα radiation. The scanning electron micrographs reveal that all the compounds have uniform crystallite structure. The energy dispersive X-ray analysis confirms the formation of pure cadmium sulfide nanoparticles. The reverse magnetization behavior was identified in all the compounds which confirm the diamagnetic property of CdS nanoparticles. The resultant compounds confirm the competent candidature for solar cells, photodiodes, light emitting diodes, nonlinear optics and heterogeneous photo catalysis.