Analysis of the power conversion efficiency of perovskite solar cells with different materials as Hole-Transport Layer by numerical simulations. (July 2017)

• Record Type: Journal Article
• Authors: Casas, G.A.; Cappelletti, M.A.; Cédola, A.P.; Soucase, Bernabé Marí; Peltzer y Blancá, E.L.
• Is Part Of: Superlattices and microstructures. Volume 107(2017)
• Page Start: 136
• Page End: 143
• Publication Date: 2017-07
• Subjects: Solar energy -- Perovskite -- Hole Transporting Layer (HTL) -- Numerical simulation; Superlattices as materials -- Periodicals; Microstructure -- Periodicals; Semiconductors -- Periodicals; Superréseaux -- Périodiques; Microstructure (Physique) -- Périodiques; Semiconducteurs -- Périodiques; 621.38152
• DOI: 10.1016/j.spmi.2017.04.007
• Languages: English
• ISSNs: 0749-6036

Abstract

Abstract: In this paper, a theoretical study of different p-p-n perovskite solar cells has been performed by means of computer simulation. Effects of the offset level upon the power conversion efficiency ( PCE ) of these devices have been researched using five different materials such as spiro-OMeTAD, Cu2 O, CuSCN, NiO and CuI, as Hole Transporting Layer (HTL). The Solar Cells Capacitance Simulator (SCAPS)-1D has been the tool used for numerical simulation of these devices. A strong dependence of PCE has been found with the difference between the Maximum of the Valence Band of the HTL and perovskite materials, and with the doping level in p-type perovskite layer. A minimum value of hole mobility in the HTL has been also found, below which the PCE is reduced. Efficiencies in the order of 28% have been obtained for the Cu2 O/Perovskite/TiO2 solar cell. Results obtained in this work show the potentiality of this promising technology. Highlights: The effects of using five different materials as HTL in perovskite solar cells have been theoretically investigated. The offset and the doping level in p-type perovskite layer have significant influence on the power conversion efficiency. Efficiencies in the order of 28% have been obtained for the Cu2 O/Perovskite/TiO2 solar cell.