Efficiency enhancement of hybrid-solar cell by optimizing CuSCN and V₂O₅ based dual hole transport layer

Global interest has been sparked by the enormous potential of solar energy harvesting to balance the world's energy consumption in light of the steadily rising global demand. The third generation solar cell technologies shows superior performance in terms of efficiency as compared to the conventional technology. This simulation study provides detailed findings from a particular modelling methodology for hybrid solar cells (HSCs). The proposed work seeks to boost device efficiency by introducing a novel dual hole transport layer (HTL). The HSC achieves highest efficiency, utilizing a dual combination of the HTLs in the Copper materials, specifically, Copper zinc tin sulphide (CZTS). In the current simulation, TiO₂ and both V₂O₅, and CuSCN are employed as carrier transport layers (CTL). These layers encapsulate CuSCN and V₂O₅, which possess as the dual HTL having the specific bandgaps of 3.4 and 2.2 eV, respectively. The dual hole transport layer enhances the open-circuit voltage (V_OC) up to 1.102 V which enhances total output of the solar cell. The utilization of dual-HTL composed results in an impressive efficiency of 23.45 %. The study simultaneously examines thickness, defect density, and temperature dependence in simulated device structures.