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Energy Yield Advantages of Three-Terminal Perovskite-Silicon Tandem Photovoltaics
Joule ( IF 39.8 ) Pub Date : 2020-10-02 , DOI: 10.1016/j.joule.2020.08.021
Fabrizio Gota , Malte Langenhorst , Raphael Schmager , Jonathan Lehr , Ulrich W. Paetzold

The fast progress of perovskite-based tandem photovoltaic technology raises the need to identify optimal double-junction tandem architectures with regard to energy yield (EY) under realistic irradiation conditions. Recently, the three-terminal (3T) perovskite-silicon tandem architecture was prototyped for the first time. This technology bears great promise as it combines the advantages of two-terminal (2T) and four-terminal (4T) architectures. This numerical study provides a systematic EY-modeling analysis for perovskite-silicon tandem architectures. According to our study, the 3T architecture delivers the highest EY (from 3% to 9% relative) in every climatic condition, due to ∼6% larger photogenerated current density in the absorber layers compared with 4T architecture and a higher robustness to spectral variations compared with 2T architecture. Finally, we show that the standard deviation of the average utilizable photon energy can be used to predict the gain in EY of 3T architecture compared with 2T architecture.



中文翻译:

三端钙钛矿-硅串联光伏太阳能的发电量优势

基于钙钛矿的串联光伏技术的飞速发展,提出了在现实的辐照条件下确定最佳双结串联结构的能量产率(EY)的需求。最近,三端子(3T)钙钛矿-硅串联结构首次被原型化。该技术结合了两端子(2T)和四端子(4T)架构的优点,因此具有广阔的前景。该数值研究为钙钛矿-硅串联结构提供了系统的EY模型分析。根据我们的研究,由于与4T架构相比,吸收层中的光生电流密度高6%左右,并且光谱变化的鲁棒性更高,因此3T架构在每种气候条件下都能提供最高的EY(相对值从3%到9%)与2T架构相比。

更新日期:2020-11-18
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