Regular Article

Improving photovoltaic performance of P3HT: IC₆₀BA based organic solar cell: N-type doping effect

¹ ERTTI Laboratory, MCSCO research group, FSTE, Moulay Ismail University of Meknes, 52000, BP. 509 Boutalamine, Errachidia, Morocco
² MIN research group, Electrical Engineering Department, ESTM, Moulay Ismail University of Meknes, Meknes, Morocco
³ LASMAR Laboratory, Faculty of Sciences, Moulay Ismail University of Meknes, 50000, B.P. 11201 Zitoune Meknès, Morocco

^* e-mail: m.erray@edu.umi.ac.ma

Received: 18 December 2021
Received in final form: 27 February 2022
Accepted: 3 March 2022
Published online: 6 May 2022

Abstract

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 (N_D) effect on the organic solar cell performance is done. Moreover, a combination between the P-type doping concentration (N_A) and N-type one (N_D) is investigated. However, due to the relationship between doping and carriers charge mobility, the effect of N_D for different electron mobilities (μ_n) is also studied. We showed a high efficiency of 5.88% that is achieved for particular values of N_A = 10¹⁷ cm⁻³, N_D = 2 × 10¹⁶ cm⁻³, μ_p = 3 × 10⁻⁴ cm² V⁻¹ s⁻¹ and μ_n = 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.