Figure 2 | Scientific Reports

Figure 2

From: Reduced bimolecular charge recombination in efficient organic solar cells comprising non-fullerene acceptors

Figure 2

Current density–voltage characteristics of solar cells comprising a PBDB-T:O-IDTBR or PBDB-T:IE4F-S active layer. The symbols represent experimental characteristics, the solid lines are fits of the data by drift diffusion simulations, with the experimental charge-carrier mobilities as input. With the mobilities known, the recombination rate determines the fill factor, where the results for Langevin recombination (γ = 1) are represented by the dash-dotted lines.

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