There are many papers which use SCAPS-1D in numerically solving for organic solar cells. I agree with Jasurbek Gulomov that this simulator is not the most suitable for organic solar cells. But under some assumptions, it cab be used.
The main assumption is that the excitons are readily dissociated as in the metallic semiconductors.
All what you need is the energy gap, the optical absorption coeffect and the mobility. You can assume that the material is intrinsic or you can give the doping, and the effective density of sates of the materials.
You can follow the paper in the link:Article Possible efficiency boosting of non-fullerene acceptor solar...
Article Numerical study of organic graded bulk heterojunction solar ...