Simulation study of the losses and influences of geminate and bimolecular recombination on the performances of bulk heterojunction organic solar cells |
Electron currents (a) and hole currents (b) at different positions of the device when α = 1/ β = 1 for various biases. The dashed line denotes the current density of 0 and the dotted line refers to the photocurrent when the bias is 0.55 V. |