Reimagining solar cells with La _{<b> (1− <i>x</i> ) </b>} Sr <sub> <b>

Renewable energy requires photovoltaic (PV) technologies, which can overcome the drawbacks of previously researched silicon cells in efficiency, heaviness, and price. Perovskite nanomaterials are promising options, but questions about their stability and practical use remain unresolved. This research investigated La(1−x)Sr(x)MnO3 (LSMO) nanoperovskites as performance-enhancing coatings on PV cells. The samples of LSMO with different concentrations of Sr (x = 0.5, 0.7) have been synthesised by co-precipitation and identified using XRD, FTIR, UV–Vis, photoluminescence, BET surface analysis and antimicrobial tests. The composition-dependent reduction in the grain size, surface area and modulation of the band gaps (5.69–5.94 eV) were found to enhance photon absorption and charge transport. LSMO coatings incorporated greatly increased the output power and efficiency, with x = 0.7 composition improving the efficiency by almost 40% over that of the uncoated cells. Critical knowledge gap between the design of perovskite materials and actual PV operation, demonstrating that LSMO is a potentially successful source of solar technology.