Document Abstract
The thin films of CdS1-xSex were successfully
deposited over glass substrates by chemical bath deposition
technique. Cadmium acetate, thiourea and sodium
selenosulfate were used as source materials for Cd2+,
S2− and Se2− ions, while 2-mercaptoethanol was used
as capping agent. The various deposition conditions
such as precursor concentration, deposition temperature,
pH and deposition time were optimized for the deposition
of CdS1-xSex thin films of good quality and the
films were annealed at 200° and 300 °C. The structural,
morphological, chemical and optical properties were examined
by various characterization techniques and
discussed in detail. The optical band gap of CdS1-xSex
thin film samples were estimated and found in the range
from 2.11 to 1.79 eV for as-deposited and annealed thin
films.