On this paper, we optimize Ag catalysts for CNT progress by analyzing the connection between the expansion parameters of the Ag catalyst and the construction of the island. The construction of the islands included the diameter of the Ag island, the composition of the Ag, and the crystallinity. The experimental progress parameters included the annealing time, the temperature, the deposition time, and the mass of the supply. Ag skinny movies have been deposited on SiO2 microscope slides as a substrate utilizing a thermal evaporation technique, adopted by annealing remedy to kind island at floor of substrate and optimization of the 4 parameters. Ag catalyst islands have been characterised utilizing scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDS) to investigate the diameter and to substantiate that Ag had been deposited on the floor of the substrate. This analysis discovered that will increase within the mass of the Ag supply used, the evaporation time, and the annealing temperature elevated the typical diameter of the Ag catalyst island. The catalyst was optimized for high-quality CNT rising, the place the CNT will probably be utilized in digital and photo voltaic cell functions, particularly to enhance the effectivity of the photo voltaic cell.