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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >INVESTIGATION OF BIFACIAL PERC CELLS BASED ON REAR SIDE SIO_XN_Y PASSIVATION
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INVESTIGATION OF BIFACIAL PERC CELLS BASED ON REAR SIDE SIO_XN_Y PASSIVATION

机译：基于后侧SiO_XN_Y钝化的双对皮细胞的研究

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摘要

In this paper, we demonstrated that the p-type bifacial PERC solar cells can also be completed using rear side SiO_xN_y passivation layer. Because the passivation effect of SiO_xN_y passivation layer is difference with Al_2O_3 passivation layer. It mean we need to do more experiments to determine the rear side conditions, including polishing conditions, rear side laser conditions, and etc. In the polishing process, we use the recipe of mass producing mono PERC and try to deepen the polishing thickness. It could be found that the front side efficiency for bifacial cells which deepen the polishing thickness has improved, but the rear side efficiency has decreased significantly. It also was adjusted the rear side aluminum finger width of 120μm and 150pm for the bifacial PERC cells, respectively. From the experimental results, there is no difference in front side efficiency, a significant average efficiency gain of 0.2% for rear side was achieved. Finally, by optimizing the rear structure, the bifacial PERC solar cells achieved the best performance with average front and rear side efficiency of 21.90% and 16.16% respectively.
机译：在本文中，我们证明了P型双因素PERC太阳能电池也可以使用后侧SiO_XN_Y钝化层完成。因为SiO_XN_Y钝化层的钝化效果与AL_2O_3钝化层差异。这意味着我们需要做更多的实验来确定后侧条件，包括抛光条件，后侧激光条件等。在抛光过程中，我们使用批量生产单体Perc的配方，并尝试加深抛光厚度。可以发现，加深抛光厚度的双相细胞的前侧效率已经改善，但后侧效率显着降低。它还分别将后侧铝手指宽度调节为120μm和下午15点的细胞。从实验结果，前侧效率没有差异，实现了后侧的显着平均效率增益为0.2％。最后，通过优化后部结构，双面条PERC太阳能电池分别实现了平均前后效率的最佳性能，分别为21.90％和16.16％。

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