Variation of band gap in chemically deposited PbxCd1-xS thin films

In this paper, PbxCd1-xS (0.0 ≤ x ≤ 1.0) thin films were successfully deposited on suitably cleaned glass substrate at constant temperature 75 0C, using the chemical bath deposition technique. The effect of Pb incorporation on the CdS films was investigated by using optical properties. The optical properties such as absorption and band gap energies of the films were carried out by UV-Vis transmission in the range 350-800 nm using UV spectrophotometer. The band gap of the films (0.0 ≤ x ≤ 1.0) was found in the range 2.34-1.2 eV. The film thickness was found to vary from 407 nm to 687 nm as composition parameter ‘x’ increased from 0 to 1 in PbxCd1-xS thin films deposited on glass slides by using chemical bath deposition technique

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