Low-metal contact composite tunneling passivation contact solar cell preparation method and cell
The invention provides a low-metal contact composite tunneling passivation contact solar cell preparation method and a tunneling passivation contact solar cell, and belongs to the technical field of solar cells, and the method comprises the steps: alternately preparing a plurality of tunneling silic...
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Main Authors | , , , , , , , , , , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
25.06.2024
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Abstract | The invention provides a low-metal contact composite tunneling passivation contact solar cell preparation method and a tunneling passivation contact solar cell, and belongs to the technical field of solar cells, and the method comprises the steps: alternately preparing a plurality of tunneling silicon oxide layers and a plurality of phosphorus-doped polycrystalline silicon layers on the back surface of an N-type silicon wafer to form a multi-lamination structure layer; and carrying out heat treatment on a specified region on the phosphorus-doped polycrystalline silicon layer by using laser, removing the tunneling silicon oxide layer on the outermost layer in the specified region, and meanwhile, keeping a complete multi-lamination structure layer in a pre-prepared metal grid line contact region. The tunneling passivation contact solar cell prepared by the invention can adapt to a thinner phosphorus-doped polycrystalline silicon layer without causing rise of back metal contact recombination, can greatly reduce |
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AbstractList | The invention provides a low-metal contact composite tunneling passivation contact solar cell preparation method and a tunneling passivation contact solar cell, and belongs to the technical field of solar cells, and the method comprises the steps: alternately preparing a plurality of tunneling silicon oxide layers and a plurality of phosphorus-doped polycrystalline silicon layers on the back surface of an N-type silicon wafer to form a multi-lamination structure layer; and carrying out heat treatment on a specified region on the phosphorus-doped polycrystalline silicon layer by using laser, removing the tunneling silicon oxide layer on the outermost layer in the specified region, and meanwhile, keeping a complete multi-lamination structure layer in a pre-prepared metal grid line contact region. The tunneling passivation contact solar cell prepared by the invention can adapt to a thinner phosphorus-doped polycrystalline silicon layer without causing rise of back metal contact recombination, can greatly reduce |
Author | WANG ZIQIAN XING BO PAN MINGCUI ZHAI JINYE LANG FANG LIU YING ZHAO XUELING SHAO HAITAO WANG PING ZHANG WEI ZHAO LIANG WANG HONGFANG MA CHAO SHI JINCHAO LI CHENXI YAN MEINAN MA HONGNA YU BO MENG QINGCHAO LI YONGKANG |
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DocumentTitleAlternate | 低金属接触复合隧穿钝化接触太阳能电池制备方法及电池 |
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Snippet | The invention provides a low-metal contact composite tunneling passivation contact solar cell preparation method and a tunneling passivation contact solar... |
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Title | Low-metal contact composite tunneling passivation contact solar cell preparation method and cell |
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