Excellent ONO passivation on phosphorus and boron diffusion demonstrating a 25% efficient IBC solar cell,Progress in Photovoltaics

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Excellent ONO passivation on phosphorus and boron diffusion demonstrating a 25% efficient IBC solar cell
Progress in Photovoltaics ( IF 8.0 ) Pub Date : 2020-07-10 , DOI: 10.1002/pip.3310
Teng Choon Kho ₁ , Kean Chern Fong ₁ , Matthew Stocks ₁ , Keith McIntosh ₂ , Evan Franklin ₃ , Sieu Pheng Phang ₁ , Wensheng Liang ₁ , Andrew Blakers ₁

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This work presents results of a laboratory‐scale interdigitated back contact (IBC) solar cell with an independently measured efficiency of 25.0%, featuring open‐circuit voltage of 716 mV, short‐circuit current of 43.0 mA.cm⁻² and fill factor of 81.0%. Notably, the high efficiency was achieved based on significant improvements resulting from the optimised cell structure, excellent SiO₂‐SiN_x‐SiO_x (ONO) surface passivation, detailed bulk lifetime management strategy and improved random pyramid texturing. Experimental details and analysis of the individual improvements over prior work are presented in‐depth.

中文翻译：

对磷和硼的扩散具有出色的ONO钝化性能，证明IBC太阳能电池的效率为25％

这项工作展示了实验室规模的叉指背接触式（IBC）太阳能电池的结果，其独立测量的效率为25.0％，其开路电压为716 mV，短路电流为43.0 mA.cm ^-2，填充系数为81.0％。值得注意的是，由于优化的电池结构，出色的SiO ₂ -SiN _x -SiO _x（ONO）表面钝化，详细的本体寿命管理策略以及改进的随机金字塔织构化而带来的显着改进，实现了高效率。深入介绍了实验细节和对先前工作的个别改进的分析。

更新日期：2020-09-15

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