Research / 2019 / Article / Fig 2

Research Article

High-Performance and Hysteresis-Free Perovskite Solar Cells Based on Rare-Earth-Doped SnO2 Mesoporous Scaffold

Figure 2

(a) TEM image of 3% Y-doped m-SnO2. (b) HRTEM image of 3% Y-doped m-SnO2. (c) Histogram of particle diameters from (b). (d) Nitrogen adsorption-desorption isotherms of the as-synthesized samples.