Improving the Performance of CZTS/CZTSSe Tandem Thin Film Solar Cell
| Authors | Loumafak Hafaifa1, 2 , Mostefa Maache1, 3 , Mohamed Wahid Bouabdelli4 |
| Affiliations |
1Department of Physics, FECS, Ziane Achour University, 17000 Djelfa, Algeria 2Physico Chemistry of Materials and Environment Laboratory, Ziane Achour University of Djelfa, BP 3117, Djelfa, Algeria 3PLTFA, Physical Laboratory of Thin Films and Applications, Mohamed Khider University, 07000 Biskra, Algeria 4Laboratory for analysis and Control of Energy Systems and Electrical Networks, Faculty of Technology, Amar Telidji University, BP 37G, 03000 Laghouat, Algeria |
| Е-mail | m.maache@univ-djelfa.dz |
| Issue | Volume 16, Year 2024, Number 2 |
| Dates | Received 10 December 2023; revised manuscript received 14 April 2024; published online 29 April 2024 |
| Citation | Loumafak Hafaifa, Mostefa Maache, Mohamed Wahid Bouabdelli, J. Nano- Electron. Phys. 16 No 2, 02018 (2024) |
| DOI | https://doi.org/10.21272/jnep.16(2).02018 |
| PACS Number(s) | 78.20.Bh, 73.40.Lq, 84.60.Jt |
| Keywords | CZTS (14) , CZTSSe (2) , Solar cell (51) , Tandem (3) , Efficiency (24) , Silvaco-Atlas (2) . |
| Annotation |
Numerical simulation of CZTS/CZTSSe tandem solar cells utilizing Silvaco-Atlas was investigated. Firstly, the performances of conventional CZTS/CdS/ZnO and CZTSSe/CdS/ZnO single solar cells with thicknesses for both absorber layers at 360 nm and 3 nm, respectively, were studied independently. A wide band gap CZTS thin-film cell and a narrow band gap CZTSSe-based cell present conversion efficiencies of 11.10% and 13.76% respectively. This agrees with experimental and simulation results previously published. Furthermore, a CZTS/CZTSe tandem cell configuration is identified keeping the identical material properties. A good conversion efficiency of 25.27% was obtained. Finally, the thickness of the CZTS adsorption layer of the top cell was optimized as a crucial factor to enhance the tandem performance. Optimal thickness coinciding to a highest efficiency of 26.05% is 420 nm. The output parameters obtained are, Jsc = 28.46 mA/cm2, Voc = 1.27 V and FF = 71.83%. This suggested results may help in the future research and may lead to the fabrication of CZTSSe-based solar cells. |
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List of References |
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