Fig. 5From: Influence of Ag Nanoparticles with Different Sizes and Concentrations Embedded in a TiO2 Compact Layer on the Conversion Efficiency of Perovskite Solar CellsUV-vis absorption spectra of the compact films and the whole PSC devices with a, b 10-nm Ag NPs; c, d 30-nm Ag NPs; e, f 40-nm Ag NPs; and g, h 55-nm Ag NPsBack to article page