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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >ADVANCED LASER PATTERNING AND METALLIZATION TECHNOLOGY FOR MWT PERC SI SOLAR CELLS
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ADVANCED LASER PATTERNING AND METALLIZATION TECHNOLOGY FOR MWT PERC SI SOLAR CELLS

机译：MWT PERC太阳能电池的先进激光打标和金属化技术

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Within the framework of the US DoE funded FPACE project several advancements to a p-type PERC cell concept have been studied. In a first step the potential to combine a PERC process with a metal wrap through (MWT) approach - taking advantage of the back side passivation to shield the wrapped-through front contact - has been evaluated. The possibility of using an extrusion process to connect the MWT vias on the front side of the cell has been studied. A process of local line width modulation from 60 to 160 μm has been developed by PARC to allow for a reliable alignment between the contact fingers and the through connections. Finally the potential of combining the improved internal reflection and rear surface passivation of a PERC cell with a reduced front side recombination by employing local laser diffusion has been investigated. A detailed laser parameter study has been conducted and the laser parameters have been evaluated in regards to their impact on cell performance and phosphorous doping profile.
机译：在美国能源部资助的FPACE项目的框架内，已经研究了p型PERC电池概念的一些进步。第一步，已经评估了将PERC工艺与金属缠绕（MWT）方法相结合的潜力-利用背面钝化来屏蔽缠绕的正面触点。已经研究了使用挤压工艺在电池正面连接MWT通孔的可能性。 PARC已开发出一种60至160μm的局部线宽调制方法，以实现接触指与直通连接之间的可靠对准。最后，研究了通过使用局部激光扩散将PERC电池的改进的内部反射和背面钝化与减少的正面复合相结合的潜力。进行了详细的激光参数研究，并评估了激光参数对电池性能和磷掺杂分布的影响。

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