Cadmium Sulfide Thin Films by Chemical Bath Deposition Technique

Aida, M.S.; Hariech, S.

doi:10.1007/978-3-030-50108-2_3

Cited by 1 publication

(1 citation statement)

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“…However, the tetrahedral and the square planar geometries of the Cd 2+ complex with NH 3 was more stable compared to the octahedral geometry because the thermodynamic stability of the complex having an octahedral structure was lower compared to the tetrahedral and square-planar complexes 71 . The stability of the tetrahedral and square-planar complex can to some extent prevent the crystallites from showing an epitaxial growth, which further increases the homogeneity of the CdS films 72 . Another advantage that was noted for the square-planar and tetrahedral complex geometries was that it decreased the steric and electrostatic hindrance factors based on the order of substitution of the S 2− and NH 3 ions which took place at the below and top faces of the complexes.…”

Section: Growth Mechanismmentioning

confidence: 99%

An in-depth analysis of nucleation and growth mechanism of CdS thin film synthesized by chemical bath deposition (CBD) technique

Najm

Naeem

Majdi³

et al. 2022

Sci Rep

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The aim of this study is to acquire a deeper understanding of the response mechanism that is associated with the formation of CdS thin films. We presented an effective and new hybrid sensitisation technique, which involved the 1-step linker between the related chemical bath deposition (CBD) process and the traditional doping method during CBD for synthesising high-quality, CdS thin films. The mechanism for the combined synthesis of the films is also describes. CdS films were electrostatically bonded to soda-lime glass, causing the formation of the intermediate complexes [Cd(NH3)4]2+, which aided in the collision of these complexes with a soda-lime glass slide. In the one-step fabrication technique, 3-Mercaptopropionic Acid (MPA) was employed as a second source of sulphur ions and a linker molecule. Optical studies showed that the bandgap ranged between (2.26–2.52) eV. CdS + MPA films exhibited a uniform distribution of spherical molecules based on their morphological properties. After annealing, this approach significantly altered the electrical characteristics of CdS films. The CdS + MPA films displayed the highest carrier concentration whereas the CdS + Ag + MPA films exhibited the lowest resistivity, with a jump of 3 orders of magnitude.

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Section: Growth Mechanismmentioning

confidence: 99%