Surface Treatment on Nickel Oxide to Enhance the Efficiency of Inverted Perovskite Solar Cells

Figure 2

The top view morphologies of (a) NiOx annealed at 100°C, (b) NiOx annealed at 300°C, and (c) NiOx at 500°C. The top view morphologies of perovskite films deposited on (d) NiOx annealed at 100°C, (e) NiOx annealed at 300°C, and (f) NiOx at 500°C.

(a)

(b)

(c)

(d)

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(f)