NaI Doping Effect on Photophysical Properties of Organic-Lead-Halide Perovskite Thin Films by Using Solution Process

Figure 6

(a) Device structure diagram. (b) Photocurrent voltage density reverse scan (RS) curve of Sample+0 M, Sample+0.75 M, Sample+0.9 M, and Sample+1.2 M.

(a)

(b)