High-Performance and Hysteresis-Free Perovskite Solar Cells Based on Rare-Earth-Doped SnO2 Mesoporous Scaffold
Top view FE-SEM images of (a) p-SNO, (b) 3%-SNOY, and (c) 4%-SNOY thin films deposited on FTO substrates. Top view FE-SEM images of perovskite films on (d) p-SNO, (e) 3%-SNOY, and (f) 4%-SNOY. Cross view FE-SEM image of the PSC based on (g) p-SNO and (h) 3%-SNOY mesoporous scaffold (annealed at 300°C).
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