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首页> 外文会议>European Photovoltaic Solar Energy Conference and Exhibition >STATUS AND POTENTIAL IN IMPROVING a-Si:Hc-Si:H TANDEM SOLAR CELL EFFICIENCY
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STATUS AND POTENTIAL IN IMPROVING a-Si:Hc-Si:H TANDEM SOLAR CELL EFFICIENCY

机译：改善a-Si：H / nc-Si：H串联太阳能电池效率的现状和潜力

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摘要

To improve the conversion efficiency of thin-film silicon a-Si:H/μc-Si:H tandem solar cells different conceptual steps are introduced. They are studied by the means of rigorous 3-D optical simulations based on Finite Element Method. A complete solar cell structure is simulated on the verified model, utilizing the non-conformal growth model to obtain realistic interfaces inside solar cell and incoherent propagation of light in thick glass layer to obtain additional information from the front air/glass interface. Different steps to improve the light incoupling and reduce the parasitic absorption in the supportive layers are presented. The most promising steps are highlighted and analyzed in details. The total improvement in terms of short circuit current density was higher than ＞2.5 mA/cm~2 of total current and the highest impact on the improvement comes from a better incoupling of light into absorber layers.
机译：为了提高薄膜硅a-Si：H /μc-Si：H串联太阳能电池的转换效率，引入了不同的概念性步骤。通过基于有限元方法的严格3D光学模拟对它们进行了研究。在验证的模型上模拟完整的太阳能电池结构，利用非保形生长模型获得太阳能电池内部的真实界面以及厚玻璃层中光的非相干传播，从而从前空气/玻璃界面获得更多信息。提出了改善光耦合并减少支撑层中寄生吸收的不同步骤。最有希望的步骤将突出显示并进行详细分析。就短路电流密度而言，总的改进高于总电流的> 2.5 mA / cm〜2，并且对改进的最大影响来自光到吸收体层的更好耦合。

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