Composition dependent optical, structural and photoluminescence behaviour of CdS:Al thin films by chemical bath deposition method

Quantitative measurement of transport properties: Ag-doped nanocrystalline CdS thin films

“…At higher Ag ($5%) doping, Ag might be starting to enter the lattice both interstitially and substitutionally which causes the intensity to increase again. Muthusamy et al 24 also observed the increase in the intensity of XRD peaks of Al doped CdS lms prepared by chemical bath deposition method at 80 C. From the inset of Fig. 3(A), it is seen that the peak position is shied to the lower angle at low Ag ($1%) doping and while it is shied to the higher angle at high Ag ($5%) doping than the undoped CdS.…”

Study the structural and optical properties of pure and Aluminum doped CdS thin films prepared by chemical bath deposition method

“…The higher value of the E g compared with that of the bulk energy gap of 2.42 eV, indicates the formation of nanostructure and presence of quantum confinement effects in the prepared films [25,26]. The decreases in Eg may be due to the replacement of larger number of substitutional or interstitial Cadmium ions by Aluminum ions, this is because new localized levels have been formed that permeate the fundamental levels [19,27] .…”

Structure and properties of CdS thin films prepared by pulsed laser assisted chemical bath deposition

“…In general, CdS thin films have been prepared by both physical and chemical techniques. As mentioned above, chemical bath deposition (CBD) is known to be the best method to produce CdS thin films with appropriate buffer layer properties for thin film solar cells [10], being a relatively simple, low temperature and inexpensive scalable deposition technique [11,12] with respect to high-cost vacuum techniques [13]. Deposition of CdS by CBD is based on the slow release of Cd 2+ and S 2-ions in an aqueous alkaline bath and subsequent condensation of these ions on the surfaces of the substrates immersed in the bath [14,15].…”