This paper reports a study on the effect of different parameters such as charge carriers mobility, electrodes work function, energy gap, series as well as shunt resistances on the performances of an organic photovoltaic cell based on polymer/fullerene P3HT: PCBM. Thus, numerical simulations have been investigated on ITO/PEDOT:PSS/P3HT: PCBM/LiF/Al structure with Analysis of Microelectronic and Photonic Structures the simulation one dimension (AMPS-1D) and General-Purpose Photovoltaic Device Model (GPVDM) softwares. The results show that the optimum efficiency is obtained for electron and hole motility values of 10−4 cm2 V−1 s−1 and 2 × 10−4 cm2 V−1 s−1, respectively. Moreover, we reported that the ohmic contact for both anode and cathode electrodes of the investigated device remains very important to get the maximum efficiency. Furthermore, when the gap energy increases, the efficiency is considerably improved, and reach's a value of about 5.421%. In addition, in this present work, the complimentary between the both softwares AMPS and GPVDM is also well illustrated as an original modeling approach to investigate the performances of organic photovoltaic cells.

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In this paper we report a numerical simulation study for P3HT: IC60BA based organic solar cell with Analysis of Microelectronic and Photonic Structures the simulation one dimension software (AMPS-1D). Indeed, the N-type doping concentration (ND) effect on the organic solar cell performance is done. Moreover, a combination between the P-type doping concentration (NA) and N-type one (ND) is investigated. However, due to the relationship between doping and carriers charge mobility, the effect of ND for different electron mobilities (μn) is also studied. We showed a high efficiency of 5.88% that is achieved for particular values of NA = 1017 cm−3, ND = 2 × 1016 cm−3, μp = 3 × 10−4 cm2 V−1 s−1 and μn = 7 × 10−4 cm2 V−1 s−1. Thus, we noticed that the P-type doping remains more promising than N-type one for the device performance improvement. Furthermore, the validation of the obtained results by those experimentally reported in literature is realized. In addition, the doping of other BHJ OSC devices consisting of P3HT: IC70BA is studied; an optimum efficiency of about 6.32% is reached.

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