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

Figure 5

The schematic models of vertical phase separation with different deposition temperatures: (a) 70°C, (b) 100°C, (c) 130°C, and (d) 160°C.

(a)

(b)

(c)

(d)