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- W2996004873 abstract "The influence of Molybdenum diselenide transition metal dichalcogenide material (p-type MoSe 2 TMDC) as an interfacial layer between the ultra-thin Cu (In, Ga)Se 2 (CIGS) absorber layer, with thickness less than 500[Formula: see text]nm, and molybdenum back contact was studied using SCAPS-1D simulation package. The possible effects of the p-MoSe 2 layer on the electrical properties and the photovoltaic parameters of the CIGS thin-film solar cells have been investigated. Band gap energy, carrier concentration, and the layer thickness of the p-MoSe 2 were varied in this study. The optimum band gap is found to be of 1.3 eV. Interfacial layers of thicknesses less than 200 nm have been found to cause deterioration for the overall cell performance. This might be attributed to the increase in the back-contact recombination current and the reduction of the built-in potential at p-MoSe 2 /CIGS junction. Furthermore, the MoSe 2 layer would form the so-called back surface field (BSF), due to the associated wider band gap with respect to that of CIGS absorber layer. Additionally, the simulation of the I–V characteristic showed a higher slope which implies that MoSe 2 layer at the CIGS/Mo interface acts in a beneficial way on the CIGS/Mo hetero-contact adapting it from Schottky type contact to quasi-ohmic contact. The conversion efficiency has increased significantly from 14.61% to 22.08%, without and with the MoSe 2 layer, respectively. These findings are very promising for future high performance and cost-effective solar cell devices." @default.
- W2996004873 created "2019-12-26" @default.
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- W2996004873 date "2019-12-20" @default.
- W2996004873 modified "2023-09-26" @default.
- W2996004873 title "Simulation analysis of functional MoSe<sub>2</sub>layer for ultra-thin Cu(In,Ga)Se<sub>2</sub>solar cells architecture" @default.
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- W2996004873 doi "https://doi.org/10.1142/s0217984920500657" @default.
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