Modeling Thin Film CdS Development in a Chemical Bath Deposition Process

摘要: The chemical bath deposition (CBD) process is currently favored for the preparation of CdS thin films commercial interest. A engineering type analysis CBD carried out in this paper to aid its design and optimization. Model equations are developed (based on a population balance formulation) temporal variation reactant concentrations as well solid phase, both bulk substrate. possible sequence elementary mechanisms (i.e., nucleation, surface reaction, etc.) suggested, resulting comprehensive model solved numerically. Computational results show that consistent with available experimental data film thickness evolution. Furthermore, influence parameters studied theoretically discussed extensively several cases. may prove very useful optimization respect variables (reactant concentrations, time, efficient determination presently uncertain or missing parameter values.