Abstract
A simulation method was developed to display images of deposited particles and their dynamic 2D growth and coalescence on surfaces, due to mechanisms such as diffusion and coalescence. The method relies on 2D spatial Fourier frequency transforms (FT) of 2D image density functions representing the microstructure. These images are convoluted with the FT of spatio-temporal integro-differential equations used for modeling the physical driving forces in the frequency domain. Thin film surface growth and restructuring effects during the photodeposition process of amorphous selenium (a-Se) were investigated. In particular, the dynamic changes of the photodeposited particles morphology during sub-monolayer growth were analyzed. The comparison between simulation and scanning electron microscopy (SEM) micrographs of photodeposited thin films during monolayer formation are in good accordance and complementary to one another.
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