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Modeling Grain Boundaries in Polycrystalline Halide Perovskite Solar Cells
Annual Review of Condensed Matter Physics ( IF 14.3 ) Pub Date : 2021-03-10 , DOI: 10.1146/annurev-conmatphys-042020-025347
Ji-Sang Park 1 , Aron Walsh 2, 3
Affiliation  

Solar cells are semiconductor devices that generate electricity through charge generation upon illumination. For optimal device efficiency, the photogenerated carriers must reach the electrical contact layers before they recombine. A deep understanding of the recombination process and transport behavior is essential to design better devices. Halide perovskite solar cells are commonly made of a polycrystalline absorber layer, but there is no consensus on the nature and role of grain boundaries. This review concerns theoretical approaches for the investigation of extended defects. We introduce recent computational studies on grain boundaries, and their influence on point-defect distributions, in halide perovskite solar cells. We conclude with a discussion of future research directions.

中文翻译:


多晶卤化物钙钛矿太阳能电池中的晶界建模

太阳能电池是通过照明产生电荷来发电的半导体器件。为了获得最佳的器件效率,光生载流子必须在重新结合之前到达电接触层。对重组过程和运输行为的深刻理解对于设计更好的设备至关重要。卤化物钙钛矿太阳能电池通常由多晶吸收层制成,但对于晶界的性质和作用尚无共识。这项审查涉及调查扩展缺陷的理论方法。我们介绍了卤化物钙钛矿太阳能电池中晶界及其对点缺陷分布的影响的最新计算研究。最后,我们讨论了未来的研究方向。

更新日期:2021-03-10
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