The growing demand for highly efficient and more cost-effective solar cells serves as the key motivator for recent advancements in the development of ultra-thin solar technologies. This research leverages the electric field induced by surface plasmon phenomena to engineer an ultra-thin silicon-based solar cell. The core concept of this research revolves around employing clustered nanoparticles with cubic and disk-shaped geometries in a range of sizes. Initially, a solar cell without nanoparticles was designed, generating a photocurrent of 4.779 mA/cm². Subsequently, by examining different nanoparticle sizes and various thicknesses, the photocurrent in structures with cubic and disk-shaped clustered nanoparticles was measured at 21.885 and 20.777 mA/cm², respectively. The simulation outcomes demonstrate that incorporating nanoparticles into the structure substantially boosts the photocurrent in ultra-thin silicon solar cells. This methodology, along with the results obtained, can be extended to various types of cells, thicknesses, and nanoparticle geometries.