Academic Journal
Influence of Wafer Thickness and Screen-Printing Mesh Counts on the Al-BSF in Crystalline Silicon Solar Cells.
| العنوان: | Influence of Wafer Thickness and Screen-Printing Mesh Counts on the Al-BSF in Crystalline Silicon Solar Cells. |
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| Alternate Title: | Вплив товщини пластини та кількості сіток трафаретного друку на Al-BSF у кристалічних кремнієвих сонячних елементах. (Ukrainian) |
| المؤلفون: | Labdelli, B., Djelloul, A., Benharrat, L., Boucheham, A., Mazari, H., Chalal, R., Manseri, A. |
| المصدر: | Journal of Nano- & Electronic Physics; 2023, Vol. 15 Issue 6, p1-5, 5p |
| مصطلحات موضوعية: | SILICON solar cells, PHOTOVOLTAIC power systems, RAPID thermal processing, CHARGE carrier lifetime, SOLAR cells, ROUGH surfaces |
| مستخلص: | In this study, experiments on the alloying process from screen-printed aluminum (Al) pastes on silicon surfaces for solar cell applications were conducted. We investigated the effect of wafer thickness and screen-printing mesh counts on the Al back surface field (Al-BSF) properties of Czochralski silicon (Cz-Si) solar cells Screens with different mesh counts (150, 200 and 400 mesh) were used to print variable amounts of Al paste (7, 9.4 and 12mg/cm²). Rapid thermal annealing (RTP) annealing processes of 750°C and 800°C for 60s were applied to form AL-BSF. SEM micrographs showed the formation of a rough surface with 4.31m alloying layer over bulk Si wafer. ECV and SIMS analysis showed that an annealing peak temperature of 750°C and an amount of Al paste of 12mg/cm2 are suitable for the creation of an optimal Al-BSF. This work revealed that Al-BSF properties are strongly affected by the mesh counts used in screen-printing of Al paste. However, no monotonic relationship was noticed with the wafer thickness. The mask with 150 meshes allowed to obtain high Al concentrations at the surface, maximum diffusion depth and longer average lifetimes of charge carriers. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: | Complementary Index |
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