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Abstract
Effect of the doping concentration (Pb2+) on structural, electrical, and optical properties of the Cd1−xPbxS thin films synthesized using pulsed laser deposition was investigated. The main focus of the present study was to inspect the conduction mechanism and tailoring of optical bandgap to enhance their utilization for photo conducing and photovoltaic devices. Study revealed that increased faction of PbS phase leads to formation of ohmic contact. However, electrical conduction is governed by thermo-ionic emission at low fraction of PbS. Optical properties suggest that optical constants and band gap of Cd1−xPbxS films can be tailored by varying “Pb” content.
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