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Rationalizing Performance Losses of Wide Bandgap Perovskite Solar Cells Evident in Data from the Perovskite Database
Advanced Energy Materials ( IF 24.4 ) Pub Date : 2023-12-15 , DOI: 10.1002/aenm.202303420
Klara Suchan 1 , T. Jesper Jacobsson 2, 3 , Carolin Rehermann 2 , Eva L. Unger 1, 2 , Thomas Kirchartz 4, 5 , Christian M. Wolff 6
Affiliation  

Metal halide perovskites (MHPs) have become a widely studied class of semiconductors for various optoelectronic devices. The possibility to tune their bandgap (Eg) over a broad spectral range from 1.2 eV to 3 eV by compositional engineering makes them particularly attractive for light emitting devices and multi-junction solar cells. In this metadata study, data from Peer-reviewed publications available in the Perovskite Database (www.perovskitedatabase.com) is used to evaluate the current state of Eg tuning in wide Eg MHP semiconductors. Recent literature on wide Eg MHP semiconductors is examined and the data is extracted and uploaded onto the Perovskite Database. Beyond describing recent highlights and scientific breakthroughs, general trends are drawn from 45,000 individual experimental datasets of MHP solar cell devices. The historical evolution of MHP solar cells is recapitulated, and general conclusions are drawn about the current limits of device performance. Three dominant causes are identified and discussed for the degradation of performance relative to the Shockley-Queisser (SQ) model's theoretical limit for single-junction solar cells: 1) energetically mismatched selective transport materials for wide Eg MHPs, 2) lower optoelectronic quality of wide Eg MHP absorbers, and 3) dynamically evolving compositional heterogeneity due to light-induced phase segregation phenomena.

中文翻译:

钙钛矿数据库数据中明显的宽带隙钙钛矿太阳能电池性能损失的合理化

金属卤化物钙钛矿(MHP)已成为广泛研究的用于各种光电器件的半导体类别。通过成分工程在 1.2 eV 至 3 eV 的宽光谱范围内调整其带隙 ( E g ) 的可能性使它们对于发光器件和多结太阳能电池特别有吸引力。在这项元数据研究中,钙钛矿数据库(www.perovskitedatabase.com)中提供的同行评审出版物中的数据用于评估E g MHP 半导体中E g调谐的当前状态。检查了有关宽E g MHP 半导体的最新文献,提取数据并将其上传到钙钛矿数据库。除了描述最近的亮点和科学突破之外,总体趋势还来自 MHP 太阳能电池设备的 45,000 个单独的实验数据集。概述了 MHP 太阳能电池的历史演变,并对当前器件性能的极限得出了一般性结论。相对于单结太阳能电池的 Shockley-Queisser (SQ) 模型的理论极限,确定并讨论了性能下降的三个主要原因:1) 宽 Eg MHP 的能量不匹配选择性传输材料,2) 宽 Eg MHP 的光电质量较低例如MHP吸收体,以及3)由于光诱导的相分离现象而动态演变的成分异质性
更新日期:2023-12-15
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