Investigation of Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate) Hole Transport Layer for Solution-Processed Polymer Solar Cells

Figure 4

AFM images of PEDOT:PSS films sprayed with different deposition temperatures: (a) 70°C, (b) 100°C, (c) 130°C, and (d) 160°C. The PEDOT:PSS films were deposited with IPA-diluted solution ((PEDOT:PSS) : IPA = 1 : 14) and 1% Zonyl FS-300 fluorosurfactant.

(a)

(b)

(c)

(d)