Fig. 3From: Influence of Ag Nanoparticles with Different Sizes and Concentrations Embedded in a TiO2 Compact Layer on the Conversion Efficiency of Perovskite Solar CellsHRTEM images and size distribution results of a 10-nm Ag NPs, b 30-nm Ag NPs, c 40-nm Ag NPs, and d 55-nm Ag NPs; HRTEM images of e Ag/TiO2 composite compact film and f enlarged image from the dotted area of eBack to article page