Double side passivation of phenylethyl ammonium iodide for all perovskite tandem solar cell with efficiency of 26.8%

EcoEnergy Pub Date : 2024-07-02 DOI:10.1002/ece2.51

Huan Bi, Jiaqi Liu, Liang Wang, Zheng Zhang, Gaurav Kapil, Shahrir Razey Sahamir, Ajay Kumar Baranwal, Yuyao Wei, Yongge Yang, Dandan Wang, Takeshi Kitamura, Hiroshi Segawa, Qing Shen, Shuzi Hayase

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Abstract

All-perovskite tandem solar cells are regarded as the next generation of devices capable of enhancing the solar energy utilization rate. Unlike single-junction perovskite solar cells (PSCs), the efficacy of tandem cells is contingent upon the performance of both the top and bottom cells. In this study, we employed a simultaneous co-modification strategy to incorporate phenylethylammonium iodide (PEAI) at both the top and bottom interfaces of the perovskite film, aiming to boost the top cell's performance. Both experimental and theoretical findings indicate that PEAI not only elevates the perovskite film quality through chemical interactions but also mitigates nonradiative recombination within the device. Consequently, the efficiency of the wide-bandgap (1.77 eV) PSCs based on nickel oxide (NiO_x) attained a level of 16.5%. Simultaneously, the all-perovskite tandem solar cells achieved an efficiency of 26.81% and demonstrated superior stability.

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苯基乙基碘化铵双面钝化用于全包晶串联太阳能电池，效率达 26.8%

全过氧化物串联太阳能电池被认为是能够提高太阳能利用率的新一代设备。与单结过氧化物太阳能电池（PSC）不同，串联电池的功效取决于上下两个电池的性能。在本研究中，我们采用了同时共修饰的策略，在过氧化物薄膜的顶部和底部界面加入苯乙基碘化铵（PEAI），旨在提高顶部电池的性能。实验和理论研究结果表明，PEAI 不仅能通过化学作用提高过氧化物薄膜的质量，还能减轻器件内的非辐射重组。因此，基于氧化镍（NiOx）的宽带隙（1.77 eV）PSC 的效率达到了 16.5%。与此同时，全过氧化物串联太阳能电池的效率达到了 26.81%，并表现出卓越的稳定性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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EcoEnergy

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