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Perovskite/perovskite planar tandem solar cells: A comprehensive guideline for reaching energy conversion efficiency beyond 30%
Nano Energy ( IF 17.6 ) Pub Date : 2020-09-19 , DOI: 10.1016/j.nanoen.2020.105400
Mohammad Ismail Hossain , Ahmed M. Saleque , Safayet Ahmed , Ilhom Saidjafarzoda , Md. Shahiduzzaman , Wayesh Qarony , Dietmar Knipp , Necmi Biyikli , Yuen Hong Tsang

Perovskite/perovskite tandem solar cells (Pk/Pk TSCs) have a substantial potential to outperform the Shockley-Queisser limit of single-junction solar cells. However, optimum material bandgap selection and device processability impede the progress in acquiring efficient Pk/Pk TSCs. The choice of charge transport/contact materials additionally has a significant influence on the photovoltaic performance of Pk/Pk TSCs. Hence, the actual fabrication of a two-terminal Pk/Pk TSC becomes tricky, which requires a detailed understanding of the underlying optical and electrical properties of the device. In this study, a wide bandgap (~1.72 eV) lead iodine-bromide (Pb–I–Br) and a narrow bandgap (~1.16 eV) tin lead-iodide (Sn–Pb–I) perovskite absorbers are considered as potential sub-cells for realizing highly efficient planar Pk/Pk TSCs. Furthermore, energetically associated hole and electron selective contacts are prepared by atomic layer deposition (ALD) of metal oxides. The optics of solar cells is investigated by three-dimensional finite-difference time-domain (FDTD) optical simulations, and finite element method (FEM) electrical simulations are exploited to determine realistic photovoltaic performance parameters. A comprehensive study is carried out to provide a complete guideline for the realization of energy conversion efficiency exceeding 30% in Pk/Pk TSCs.



中文翻译:

钙钛矿/钙钛矿平面串联太阳能电池:能量转换效率超过30%的综合指南

钙钛矿/钙钛矿串联太阳能电池(Pk / Pk TSC)具有超越单结太阳能电池的Shockley-Queisser极限的巨大潜力。但是,最佳的材料带隙选择和器件可加工性阻碍了获得有效的Pk / Pk TSC的进展。电荷传输/接触材料的选择还对Pk / Pk TSC的光伏性能产生重大影响。因此,实际制造两个端子的Pk / Pk TSC变得很棘手,这需要详细了解器件的基本光学和电学特性。在这项研究中,宽带隙(〜1.72 eV)溴化碘化铅(Pb–I–Br)和窄带隙(〜1.16 eV)碘化锡铅(Sn–Pb–I)钙钛矿吸收剂被认为是潜在的亚类。 -用于实现高效平面Pk / Pk TSC的单元。此外,通过金属氧化物的原子层沉积(ALD)制备与能量相关的空穴和电子选择性接触。通过三维有限差分时域(FDTD)光学仿真研究了太阳能电池的光学特性,并利用有限元方法(FEM)电仿真来确定实际的光伏性能参数。进行了全面的研究,为在Pk / Pk TSC中实现超过30%的能量转换效率提供了完整的指南。利用有限元方法(FEM)电仿真来确定实际的光伏性能参数。进行了全面的研究,为在Pk / Pk TSC中实现超过30%的能量转换效率提供了完整的指南。利用有限元方法(FEM)电仿真来确定实际的光伏性能参数。进行了全面的研究,为在Pk / Pk TSC中实现超过30%的能量转换效率提供了完整的指南。

更新日期:2020-10-02
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