In situ analysis of cadmium sulphide chemical bath deposition by an optical fibre monitor

Metal Chalcogenide Nanocrystalline Solid Thin Films

“…The films were polycrystalline in nature and showed good photoluminescence property. Wakeling et al 95 prepared CdS thin films on glass substrates coated with TCO on one side, and described the 96 reported the preparation of undoped and Cu-doped CdS thin films deposited over glass substrates and discussed the effect of annealing on the structural and optical properties of as-deposited thin films. Mohanty et al 97 deposited CdS thin films on glass substrates and studied the effect on structural, morphological and optical properties of the inclusion of O 2 in CdS thin films.…”

In Situ Localized Surface Plasmon Resonance (LSPR) Spectroscopy to Investigate Kinetics of Chemical Bath Deposition of CdS Thin Films

“…[2][3][4][5]13 Recently, a small number of studies have appeared in which real time investigations have been used, all with the goal of better understanding the nucleation and growth process of CBD film deposition. These include techniques based on quartz crystal microbalance measurement, 4 turbidity measurements, 14 and optical reflectance measurement, 15 The existing in-situ studies 4,14,15 revealed three regimes of film growth -first, nucleation on the substrate surface, second, a linear growth rate resulting in a compact layer, and third, a cluster mechanism that created a porous layer. However, these studies were performed under dip coating conditions where there is a higher possibility that the CdS particles precipitate in the solution and then stick to the substrate, hence contributing to the final microstructure.…”

“…However, understanding the CBD process has primarily been through a postdeposition analysis of film microstructure resulting from varying reaction parameters, such as temperature, solution concentration, pH, and fluid flow. − , Recently, a small number of studies have appeared in which real time investigations have been used, all with the goal of better understanding the nucleation and growth process of CBD film deposition. These include techniques based on quartz crystal microbalance measurement, turbidity measurements, and optical reflectance measurement . The existing in situ studies ,, revealed three regimes of film growth: first, nucleation on the substrate surface; second, a linear growth rate resulting in a compact layer; and third, a cluster mechanism that created a porous layer.…”