Mass production and modeling of high efficiency n-PERT solar cells with ion implanted BSF/selective-BSF

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• 作者：Jinchao Shi^a ; ^b ; ^c ; ^{shijinchao@yingli.com} ; Xiaowei Li^a ; Dengyuan Song^a ; ^b ; ^c ; Weiguang Yang^b ; ^c ; Feng Li^b ; ^c ; Fang Lang^b ; ^c ; Sergiu C. Pop^b ; Wei Zhang^b ; ^c ; Jianming Wang^b ; ^c ; Bo Yu^b ; ^c
• 关键词：Ion implantation ; Passivation ; SBSF ; Modeling and simulation
• 刊名：Solar Energy
• 出版年：2017
• 出版时间：15 January 2017
• 年：2017
• 卷：142
• 期：Complete
• 页码：87-90
• 全文大小：665 K
• 卷排序：142

文摘

An average 20.3% with the best of 20.5% solar cell efficiency was achieved in mass production with ion implantation. Different implantation dose and annealing conditions were studied. Modeling indicates that a SBSF cell efficiency gains around 0.2% compared to the homogeneous BSF n-PERT. Cell efficiency increases to more than 20.5% was proved when field area sheet resistance higher than 100 Ω/sq. Cells with efficiency higher than 21% can be realized by optimizing sheet resistance of rear surface and improving passivation.