In the present paper, a Pb-free and eco-friendly perovskite solar cell (PSC) with a new structure of glass|TCO|TiO₂|CZTSe_1-xS_x|CH₃NH₃SnI₃|back contact has been modeled and simulated by SCAPS-1D package. To verify the simulation process, an experimental report on Pb-free PSC was simulated initially. Then, the costly Spiro-OMeTAD layer as the common hole-transport material (HTM) was eliminated. To overcome the possible deficiencies related to lacking of HTM plus management of the incident light, the economic and eco-friendly Cu₂ZnSn(Se_1-xS_x)₄ (CZTSe_1-xS_x) layer was added in the front of perovskite layer followed by optimizing the parameters. By optimization, the power-conversion efficiency of 17.57%, open-circuit voltage Voc of 0.85 V, short-circuit current density Jsc of 29.22 mA/cm², and fill factor of 70.47% were obtained. Meanwhile, very high quantum efficiency was achieved in the visible region of spectrum. Keywords: solar cell, Pb-free perovskite, CZTSe_1-xS_x, non-toxicity, simulation.

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Дата начала обработки статистических данных - 27 января 2016 г.