Effects of Organic Solvents for Composite Active Layer of PCDTBT/PC₇₁BM on Characteristics of Organic Solar Cell Devices

Figure 4

Surface roughness values obtained from the AFM images for PCDTBT : PC₇₁BM films prepared with organic solvents of chloroform (1 wt%), chlorobenzene (2 wt%), and o-dichlorobenzene (3 wt%).