Electrical and optical properties of CdS films grown by photochemical deposition from aqueous solutions

Recently, we have established a novel deposition technique for semiconducto r thin films, namely photochemical deposition (PCD), in which the compound formation is activated by ultraviolet illumination. In the present work, th e electrical properties of the PCD-CdS films grown under different conditio ns are analyzed and presented. Their resistivity is high at room temperatur e and decreases with increasing temperature with an activation energy of ab out 0.9 eV.