1 Department of Physics, Chemistry and Pharmacy, Faculty of Science, SDU2 unknown3 SDU eScience Centre, Department of Mathematics and Computer Science (IMADA), Faculty of Science, SDU4 SDU eScience Centre, Department of Mathematics and Computer Science (IMADA), Faculty of Science, SDU
We present a theoretical analysis of the post-growth processes occurring in nanofractals grown on a surface. For this study we have developed a method that accounts for the internal dynamics of particles in a fractal. We demonstrate that the detachment of particles from the fractal and their diffusion within the fractal and over the surface determines the shape of the islands remaining on a surface after the fractal fragmentation. We consider different scenarios of fractal post-growth relaxation and analyze the time evolution of the island's morphology. The results of our calculations are compared with available experimental observations, and experiments in which the post-growth relaxation of deposited nanostructures can be tested are suggested.