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Defects in CsPbX3 Perovskite: From Understanding to Effective Manipulation for High-Performance Solar Cells
Small Methods ( IF 10.7 ) Pub Date : 2021-09-19 , DOI: 10.1002/smtd.202100725 Jingru Zhang 1 , Wangen Zhao 1 , Selina Olthof 1, 2 , Shengzhong Frank Liu 1, 3, 4
Small Methods ( IF 10.7 ) Pub Date : 2021-09-19 , DOI: 10.1002/smtd.202100725 Jingru Zhang 1 , Wangen Zhao 1 , Selina Olthof 1, 2 , Shengzhong Frank Liu 1, 3, 4
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The rapid development of all inorganic metal perovskite (CsPbX3, X represents halogen) materials holds great promise for top-cells in tandem junctions due to their glorious thermal stability and continuous adjustable band gap in a wide range. Due to the presence of defects, the power conversion efficiency (PCE) of CsPbX3 perovskite solar cells (PSCs) is still substantially below the Shockley-Queisser (SQ) limit. Therefore, it is imperative to have an in-depth understanding of the defects in PSCs, thus to evaluate their impact on device performances and to develop corresponding strategies to manipulate defects in PSCs for further promoting their photoelectric properties. In this review, the latest progress in defect passivation in the CsPbX3 PSCs field is summarized. Starting from the effect of non-radiative recombination on open circuit voltage (Voc) losses, the defect physics, tolerance, self-healing, and the effect of defects on the photovoltaic properties are discussed. Some techniques to identify defects are compared based on quantitative and qualitative analysis. Then, passivation manipulation is discussed in detail, the defect passivation mechanisms are proposed, and the passivation agents in CsPbX3 thin films are classified. Finally, directions for future research about defect manipulation that will push the field to progress forward are outlined.
中文翻译：
CsPbX3 钙钛矿的缺陷：从理解到有效操纵高性能太阳能电池
全无机金属钙钛矿（CsPbX 3，X 代表卤素）材料的快速发展，由于其出色的热稳定性和大范围内连续可调的带隙，为串联结中的顶电池提供了广阔的前景。由于缺陷的存在，CsPbX 3钙钛矿太阳能电池（PSC）的功率转换效率（PCE）仍远低于肖克利-奎塞尔（SQ）极限。因此，有必要深入了解 PSC 中的缺陷，从而评估它们对器件性能的影响，并制定相应的策略来操纵 PSC 中的缺陷以进一步提升其光电性能。在这篇综述中，CsPbX 3缺陷钝化的最新进展总结了 PSC 字段。从非辐射复合对开路电压 ( V oc ) 损失的影响开始，讨论了缺陷物理、容差、自愈以及缺陷对光伏特性的影响。基于定量和定性分析比较了一些识别缺陷的技术。然后，详细讨论了钝化操作，提出了缺陷钝化机制，并对 CsPbX 3薄膜中的钝化剂进行了分类。最后，概述了将推动该领域向前发展的缺陷操纵的未来研究方向。
更新日期：2021-11-12
中文翻译：
CsPbX3 钙钛矿的缺陷：从理解到有效操纵高性能太阳能电池
全无机金属钙钛矿（CsPbX 3，X 代表卤素）材料的快速发展，由于其出色的热稳定性和大范围内连续可调的带隙，为串联结中的顶电池提供了广阔的前景。由于缺陷的存在，CsPbX 3钙钛矿太阳能电池（PSC）的功率转换效率（PCE）仍远低于肖克利-奎塞尔（SQ）极限。因此，有必要深入了解 PSC 中的缺陷，从而评估它们对器件性能的影响，并制定相应的策略来操纵 PSC 中的缺陷以进一步提升其光电性能。在这篇综述中，CsPbX 3缺陷钝化的最新进展总结了 PSC 字段。从非辐射复合对开路电压 ( V oc ) 损失的影响开始，讨论了缺陷物理、容差、自愈以及缺陷对光伏特性的影响。基于定量和定性分析比较了一些识别缺陷的技术。然后，详细讨论了钝化操作，提出了缺陷钝化机制，并对 CsPbX 3薄膜中的钝化剂进行了分类。最后，概述了将推动该领域向前发展的缺陷操纵的未来研究方向。
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