Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer

Figure 4

Normalized SECM feedback approach curves of Pt disk UME towards the (a) NiO/CH₃NH₃PbI₃ film under blue LED illumination as listed in Table 1 and (b) PEDOT: PSS/ CH₃NH₃PbI₃ film under red LED illumination as listed in Table 2.

(a)

(b)