Abstract
Lead halide hybrid solar cells have demonstrated exceptional performance in recent years, but concerns over their toxicity and instability have spurred the development of perovskite-based cells without lead. This work explores a lead-free perovskite material consisting of cesium tin-germanium triiodide solid solution perovskite (CsSn0.5Ge0.5I3) is utilized to fabricate solar cells with varying thicknesses and donor densities of the absorber layer. The results imply that enhancing the thickness of the layer boosts the power conversion efficiency (PCE) by facilitating better photon absorption. However, this increase in thickness also causes a reduction in both the open-circuit voltage (VOC) and fill factor (FF). In other words, while thickening the layer improves PCE through increased photon absorption, it also negatively impacts other key performance metrics, such as VOC and FF. Conversely, the effect of donor density (Nd) on the cell’s performance is less significant than the CsSn0.5Ge0.5I3 layer’s thickness. This study sheds light on the critical role of thickness and donor density in optimizing the performance of CsSn0.5Ge0.5I3-based solar cells. The performance of c-Si and CIGS-based single junction bottom cells under standalone conditions is also analyzed using JV and EQE curves. The C-Si-based single junction solar cell exhibited greater efficiency (21.28%) in converting photons of different wavelengths into electrons compared to the CIGS-based solar cell (16.26%). Lastly, for increasing the PCE of the single-junction solar cells the study moves towards multi-junction solar cells. In this context, two highly efficient TSCs (LFPVK/c-Si and LFPVK/CIGS) are designed and analyzed using the current matching technique, which involves the series connection of the top and bottom cells with increased PV parameters (LFPVK/c-Si-JSC: 21.44 mA/cm2, VOC: 1.45 V, FF: 82.17%, PCE: 25.54% and LFPVK/CIGS-JSC: 21.83 mA/cm2, VOC: 1.33 V, FF: 73.34%, PCE: 21.45%).
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References
S Karthick, S Velumani and J Bouclé Solar Energy 205 349 (2020)
S T Thornton, G Abdelmageed, R F Kahwagi and G I Koleilat J. Chem. Technol. Biotechnol. 97 810 (2022)
C Duan, Z Zhao and L Yuan IEEE J. Photovolt. 11 1126 (2021)
S S Hussain et al J. Renew. Energy 2021 1 (2021)
T Dureja, A Garg, S Bhalla, D Bhutani and A Khanna Mater. Today Proc. 71 239 (2022)
S Rawat, R Gupta, and S Gohri, Mater. Today Proc. (2023)
L Qiu, S He, L K Ono and Y Qi Adv. Energy Mater. 10 1902726 (2020)
T Zhou, M Wang, Z Zang and L Fang Adv. Energy Mater. 9 1900664 (2019)
Y Chu, Y Hu and Z Xiao J. Phys. Chem. C 125 9688 (2021)
M Jošt, L Kegelmann, L Korte and S Albrecht Adv. Energy Mater. 10 1904102 (2020)
J Madan, R Pandey and R Sharma Solar Energy 197 212 (2020)
A Kumar and P Sharma IEEE Trans. Electron Dev. 69 3462 (2022)
M Aleksandrova et al Crystals 11 137 (2021)
M Aleksandrova, G Kolev, R Tomov, A Singh, K Mohite and G Dobrikov Bulgar. Chem. Commun. 2020 65 (2020)
K Chakraborty, M G Choudhury and S Paul Solar Energy 194 886 (2019)
M Kumar, A Raj, A Kumar and A Anshul Opt. Mater. 108 110213 (2020)
A Thakur, D Singh and S K Gill Mater. Today Proc. 71 195 (2022)
J Tong et al Science 364 475 (2019)
N Singh, A Agarwal and M Agarwal Solar Energy 208 399 (2020)
N Shrivastav, J Madan, R Pandey and A E Shalan RSC Adv. 11 37366 (2021)
N Shrivastav et al Energy Fuels 11 37366 (2023)
M Chen et al Nature Commun. 37 3083 (2019)
I Alam and M A Ashraf Energy Sour. Part A Recov. Utilizat. Environ. Effects 15 1 (2020)
J A AbuShama, S Johnston, T Moriarty, G Teeter, K Ramanathan and R Noufi Progress in Photovoltaics: Research and Applications 12 39 (2004)
S Lee et al J. Phys. Chem. C 113 7443 (2009)
L Nkhaili, A Narjis, A Outzourhit, A El Kissani and R El Moznine Adv. Mater. Sci. Eng. 2020 1 (2020)
Z Ren et al Solar Energy Materials and Solar Cells 179 36 (2018)
Y Yao, X Xu, X Zhang, H Zhou, X Gu and S Xiao Materials Science in Semiconductor Processing 77 16 (2018)
S Kirner, L Mazzarella, L Korte, B Stannowski, B Rech and R Schlatmann IEEE J. Photovolt. 5 1601 (2015)
J Dréon et al Nano Energy 70 104495 (2020)
H Shen et al Energy Environ. Sci. 11 394 (2018)
N Shrivastav, S Kashyap, R Pandey, and J Madan, in 2022 IEEE International Conference of Electron Devices Society Kolkata Chapter (EDKCON) pp. 39 (2022)
K A Bush et al ACS Energy Lett. 3 2173 (2018)
L Lin et al Solar Energy 215 328 (2021)
F Jafarzadeh, H Aghili, H Nikbakht and S Javadpour Solar Energy 236 195 (2022)
C U Kim et al Nano Energy 60 213 (2019)
E Aydin et al Nature Energy 5 851 (2020)
A S Subbiah et al ACS Energy Lett. 5 3034 (2020)
N Singh, A Agarwal and M Agarwal Opt. Mater. 114 110964 (2021)
J Madan, K Singh and R Pandey Sci. Rep. 11 19829 (2021)
K Amri, R Belghouthi, M Aillerie and R Gharbi Energies 14 3383 (2021)
A Kumar, S Singh, M K Mohammed and A E Shalan Europ. J. Inorg. Chem. 2021 4959 (2021)
S Abdelaziz, A Zekry, A Shaker and M Abouelatta Opt. Mater. 123 111893 (2022)
M S Salem, A Shaker, M Abouelatta and A Saeed Polymers 15 784 (2023)
M Okil, A Shaker, I S Ahmed, T M Abdolkader and M S Salem Solar Energy Mater. Solar Cells 253 112210 (2023)
S Gohri, J Madan, R Pandey and R Sharma Opt. Quant. Electron. 55 171 (2023)
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Shrivastav, N., Madan, J. & Pandey, R. Optimizing tandem solar cells efficiency through current matching technique in lead-free perovskite/c-Si and lead-free perovskite/CIGS absorbers. Indian J Phys (2024). https://doi.org/10.1007/s12648-024-03206-3
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DOI: https://doi.org/10.1007/s12648-024-03206-3