Comparative study on capped SiO2 and TiO2 to improve efficiency in plasmonic solar cell through modified synthesis approach

This study investigates the effectiveness of plasmonic improvement on photonic absorber properties of capped SiO2 and TiO2 nanoparticle in thin film a-Si photovoltaic cell. It also examines their J-V properties when exposed to sunlight. The modified Stober approach was used for irradiation tests, revealing lower reflectivity in different doses with SiO2 1st dose:0.485mg/ml, SiO2 2nd dose:0.693mg/ml, and TiO2 1st dose:0.525 mg/ml, TiO2 2nd dose:0.748 mg/ml solutions. Silica-based solar cells showed a 2.45% efficiency improvement, while titania-based solar cells improved efficiency by 0.657% compared with the uncoated sample.