Solution-Processed Monolithic All-Perovskite Triple-Junction Solar Cells with Efficiency Exceeding 20%,ACS Energy Letters

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Solution-Processed Monolithic All-Perovskite Triple-Junction Solar Cells with Efficiency Exceeding 20%
ACS Energy Letters ( IF 19.3 ) Pub Date : 2020-08-11 , DOI: 10.1021/acsenergylett.0c01184
Ke Xiao _{1,

2} , Jin Wen ₁ , Qiaolei Han ₁ , Renxing Lin ₁ , Yuan Gao ₁ , Shuai Gu ₁ , Yipeng Zang ₁ , Yuefeng Nie ₁ , Jia Zhu ₁ , Jun Xu ₂ , Hairen Tan ₁

Affiliation

Very high power conversion efficiencies (PCEs) have been demonstrated by multijunction cells made of epitaxial III–V semiconductors; but they are too expensive to manufacture for terrestrial applications. Multijunction solar cells that can be fabricated with cheap and simple solution-processing techniques offer a lower-cost alternative to reach high PCEs. Here we demonstrate the solution processing of efficient all-perovskite triple-junction solar cells using optimal-bandgap perovskites. Monolithic all-perovskite triple-junction cells with an open-circuit voltage of 2.8 V and a fill factor of 81.1% are obtained by developing interconnecting layers that are compatible with the solution processing of perovskite absorbers. The concept and design here represent an important step toward efficient all-perovskite triple-junction solar cells.

中文翻译：

效率超过20％的溶液处理单片全钙钛矿三结太阳能电池

由外延III–V半导体制成的多结电池已经证明了很高的功率转换效率（PCE）。但是它们对于地面应用而言制造起来太昂贵了。可以使用便宜和简单的溶液处理技术制造的多结太阳能电池为达到高PCE提供了一种低成本的替代方案。在这里，我们演示了使用最佳带隙钙钛矿的高效全钙钛矿三结太阳能电池的固溶处理。通过开发与钙钛矿吸收剂的固溶处理兼容的互连层，可以获得具有2.8V开路电压和81.1％填充系数的单片全钙钛矿三结电池。这里的概念和设计代表了向高效全钙钛矿三结太阳能电池迈出的重要一步。

更新日期：2020-09-11

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