Enhancing absorption efficiency by incorporating hollow titanium particles in perovskite solar cells

Since the advent of hybrid metal halide perovskite as an exceptional light-absorbing material, it has achieved remarkable advancements in enhancing the efficiency of solar cells.Building upon this foundation, the reconstruction of the internal optical properties of perovskite is anticipated to improve its efficiency further.To this end, we have investigated the impact of hollow metallic titanium particle structures on absorption rates and discovered that incorporating hollow metallic titanium structures into perovskite thin films can further enhance absorption rates compared to gold and silver nanoparticles.Ultimately, through comparative testing, we found that the solar spectral absorption rate of perovskite thin-film photovoltaic cells with a single-layer thickness of 200 nm was increased by 32%.