Numerical Study on Overcoming the Light-Harvesting Limitation of Lead-Free Cs₂AgBiBr₆ Double Perovskite Solar Cell Using Moth-Eye Broadband Antireflection Layer.

ABSTRACT: Lead-free Cs₂AgBiBr₆ double perovskite has emerged as a promising new-generation photovoltaic, due to its non-toxicity, long carrier lifetime, and low exciton binding energies. However, the low power conversion efficiency, due to the high indirect bandgap (≈2 eV), is a challenge that must be overcome and acts as an obstacle to commercialization. Herein, to overcome the limitations through the light trapping strategy, we analyzed the performance evaluation via FDTD simulation when applying the moth-eye broadband antireflection (AR) layer on top of a Cs₂AgBiBr₆ double perovskite cell. A parabola cone structure was used as a moth-eye AR layer, and an Al₂O₃ (n: 1.77), MgF₂ (n: 1.38), SiO₂ (n: 1.46), and ZnO

SUBMITTER: Seo KH 

PROVIDER: S-EPMC10707885 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature