Synthesis, optoelectronic properties and photoelectrochemical performance of CdS thin films

Cadmium sulphide thin films were deposited by the chemical method using oxalic acid as chelating agent. Solution temperature and deposition time were optimised for depositing good quality of films. The structural, optical, electrical and photoelectrochemical properties of samples were studied. From the optical absorption data, an energy gap equal to 2.60 eV was found. The efficiency of photo-electrode was found to be 1.0% using sulphide–polysulphide electrolyte.