Fig. 2. SEM images of (a) top-view spin-coated TiO₂, (b) cross-sectional CFM based perovskite/spin-coated TiO₂, (c) top-view RFRS TiO₂, (d) cross-sectional CFM based perovskite/RFRS TiO₂, (e) top-view RFRS TiO₂ after annealing for 1 h at 450 °C, and (f) cross-sectional CFM based perovskite/RFRS TiO₂ after annealing for 1 h at 450 °C (Scale bar: 200 nm).

Applied Science and Convergence Technology 2022;31:116~119 https://doi.org/10.5757/ASCT.2022.31.5.116

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