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We propose a novel approach to enhance the performance of perovskite solarcells (PSCs) by incorporating grated Cadmium Sulfide (CdS) and plasmonic goldnanoparticles (Au NPs) into the absorber layer. The CdS grating acts as theelectron transport layer and penetrates into the perovskite absorber layer,increasing the absorption of the active layer and reducing the electron-holerecombination rate. The plasmonic Au NPs enhance the absorption in the infraredregion by scattering and trapping the incident light. We perform a coupledoptical and electrical study that shows a significant improvement in the shortcircuit current density (JSC) and power conversion efficiency (PCE) of the PSCafter introducing the CdS grating and plasmonic Au NPs. Specifically, weobserve a 48% increase in average optical absorption from 800 nm to 1400 nm anda 7.42 mA/cm^2 increase in JSC. We also find that the PCE of the PSC isincreased by 7.91% when comparing the planar reference structure (without theCdS grating and the plasmonic Au NP). However, metal nanoparticles introduceohmic losses and temperature rise in the solar cell. We analyze thenon-radiative heat profile, electric field distribution, and temperaturedistribution across the PSC. We observe a temperature increase of approximately14 K above the ambient temperature for the grated CdS layer with incorporatedAu NPs, which is comparable to the temperature increase observed in the planarreference structure. Our results have the potential to pave the way for thedevelopment of highly efficient and stable PSCs in the future.

Optical, Thermal, and Electrical Analysis of Perovskite Solar Cell with Grated CdS and Embedded Plasmonic Au Nanoparticles