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RUOYING PENG1, XI XI1,2,* , JIANBO SHAO1, GUILIN LIU1, SHAOMIN LI1, ZHONGLIN LU3, JIANHUA XU3, ZHI HUANG3, XIANGYANG ZHANG1
The thinner silicon wafers result in the more serious cells bowing, which increases the fragmentation rate and decrease the conversion efficiency. Based on the laser-ablation process on Metal Wrap Through + Passivated Emitter and Rear Contact (MWT+PERC) solar cells, we studied the effect of the aluminum-silicon (Al-Si) contact area on the bowing by theoretical calculation and Abaqus finite element analysis (FEA). Meanwhile, we proposed a novel rear Al-Si contact pattern of silicon cells to improve the bowing after treatments. The results indicated that the bowing can be improved by adopting the rear surface dotted pattern based on fixed laser-ablation area.
Aluminum-silicon contact, Laser-ablation, Bowing, MWT+PERC, Solar cell.
RUOYING PENG, XI XI, JIANBO SHAO, GUILIN LIU, SHAOMIN LI, ZHONGLIN LU, JIANHUA XU, ZHI HUANG, XIANGYANG ZHANG, Study on the bowing of monocrystalline silicon MWT+PERC solar cells with different laser-ablation condition, Optoelectronics and Advanced Materials - Rapid Communications, 15, 7-8, July-August 2021, pp.373-380 (2021).
Submitted at: Dec. 7, 2020
Accepted at: Aug. 16, 2021
Optoelectronics and Advanced Materials - Rapid Communications
(2023): 0.5 - 2023 Journal Citation Reports (Clarivate Analytics, 2024)
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