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Effect of defects on high efficient perovskite solar cells
Optical Materials ( IF 3.9 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.optmat.2020.110601
Sara Taheri , Amirhossein Ahmadkhan kordbacheh , Mehran Minbashi , Ali Hajjiah

Abstract The organic-inorganic hybrid halide perovskite solar cell has been studied theoretically in this paper. For the validation cases, an experimental case is used for comparison with our simulation results, and good agreement was achieved between them. Here, the effect of defect properties such as defect density, defect position, and capture cross-section for electron and hole in the perovskite layer were studied. The results show that the deep defects (near to the center of perovskite band gap) are identified as harmful defects due to the high Shockley-Read-Hall recombination rate. In high defect density, the power conversion efficiency (PCE) dramatically reduced. The same behavior is observed for the electrons-holes capture cross-section. Finally, we classified harmful and benign defects in perovskite solar cells.

中文翻译:

缺陷对高效钙钛矿太阳能电池的影响

摘要 本文对有机-无机杂化卤化物钙钛矿太阳能电池进行了理论研究。对于验证案例,使用一个实验案例与我们的模拟结果进行比较,两者之间取得了良好的一致性。在这里,研究了钙钛矿层中缺陷密度、缺陷位置和电子和空穴捕获截面等缺陷特性的影响。结果表明,由于 Shockley-Read-Hall 复合率高,深缺陷(靠近钙钛矿带隙的中心)被识别为有害缺陷。在高缺陷密度下,功率转换效率(PCE)显着降低。对于电子-空穴捕获横截面观察到相同的行为。最后,我们对钙钛矿太阳能电池中的有害和良性缺陷进行了分类。
更新日期:2021-01-01
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