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Improved perovskite solar cell efficiency by tuning the colloidal size and free ion concentration in precursor solution using formic acid additive

Materials ScienceEngineeringPerovskite Solar CellOrganic Solar CellColloidal SizeEnergy StorageHalide PerovskitesChemistryFree Ion ConcentrationSolar CellsLead-free PerovskitesPhotovoltaicsFormic Acid Additive