Enhanced Photocurrent Of Perovskite Solar Cells By A Layer Of Randomly-Distributed-Ag-Nanospheres

Embedded plasmonic nanoparticles are able to boost the optical efficiencies of solar cells significantly. In this work, a layer of randomly-distributed Ag nanospheres (NSPs) is introduced to improve the photocurrent of perovskite solar cell. The effects of the embedded NSP coverage fraction F, radius r, and embedding depth Z within the perovskite layer on the optical properties are numerically investigated by finite element method. The maximum photocurrent is predicted to reach 23.07 mA/cm(2), which gets 18.74% enhancement relative to that of flat reference cell. This is elucidated well in terms of the corresponding plasmon resonance effect of the embedded Ag NSPs. The obtained results hold great promise for further boosting the optical efficiencies of perovskite solar cells with random distributed nanoparticles. (C) 2021 Elsevier B.V. All rights reserved.