We report on the evaluation of cell performances of the bifacial passivated emitter and rear cell (PERC) structures for both p- and n-type Cz-Si. We compared four conditions: Front-side illumination, with and without the rear metal contact, rear-side illumination, and double-side illumination. Furthermore, the effects of the rear contact area and the rear passivation surface recombination velocity (SRV) were evaluated. The numerical simulations were based on the experimental results of the p-type bifacial PERC performance, and we attempted to determine optimized cell designs for each condition. The results showed that the rear passivation SRV determined the bulk condition: An n-type bulk resistivity of 1 $\Omega$-cm and p-type bulk resistivity with BO-cluster deactivation of 0.5 $\Omega$-cm were suitable for a smaller and larger SRV, respectively.

中文翻译：

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双面 PERC 太阳能电池设计：体积和背面特性以及照明条件

我们报告了对 p 型和 n 型 Cz-Si 的双面钝化发射极和背面电池 (PERC) 结构的电池性能的评估。我们比较了四种情况：正面照明、有和没有背面金属触点、背面照明和双面照明。此外，还评估了背面接触面积和背面钝化表面复合速度 (SRV) 的影响。数值模拟基于 p 型双面 PERC 性能的实验结果，我们试图确定每种条件的优化电池设计。结果表明，背面钝化 SRV 决定了体条件：n 型体电阻率为 1$\欧米茄$-cm 和 p 型体电阻率，BO 簇失活为 0.5 $\欧米茄$-cm 分别适用于较小和较大的 SRV。