Effect of Size Non-uniformity on Performance of a Plasmonic Perovskite Solar Cell: an Array of Embedded Plasmonic Nanoparticles with the Gaussian Distribution Radiuses

Abstract

The effect of non-uniformity in size of nanoparticles on the performance of a plasmonic halide perovskite solar cell is investigated. An array of plasmonic nanoparticles inside CH3NH3PbI3 absorber is used to design an ultra-thin perovskite solar cell. The effect of nanoparticle size is done in a realistic structure in which random particle radiuses are considered according to a Gaussian distribution profile. Localized surface plasmon effects are also taken into account and photocurrent enhancement is obtained. To compare more, a perovskite solar cell without plasmonic nanoparticles is simulated. Using an array of nanoparticles inside CH3NH3PbI3 (uniform radius of 80 nm) increases its photocurrent density from 18 to 22.3 mA/cm2. The effects of non-uniformity on the photocurrent is done in which radiuses are selected according to a Gaussian distribution. Photocurrent densities of 20.81, 21.32, 21.7, 21.95, 22.07, and 22.08 mA/cm2 are obtained for the Gaussian standard deviations of 0.5, 0.6, 0.7, 0.8, 0.9, and 1, respectively.