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Fig. 2 | Nanoscale Research Letters

Fig. 2

From: Influence of Ag Nanoparticles with Different Sizes and Concentrations Embedded in a TiO2 Compact Layer on the Conversion Efficiency of Perovskite Solar Cells

Fig. 2

a Ag 3d XPS spectra of Ag/TiO2 composites. b Device structure of a Ag/TiO2 perovskite solar cell. c A cross-sectional FE-SEM image of Ag/TiO2 perovskite solar cell. d Schematic diagram of the photo generated carriers separation and transfer (the gray, blue, and yellow circles represent anatase TiO2, Ag, and perovskite nanoparticles)

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