Highly Efficient Sn–Pb Perovskite Solar Cell and High‐Performance All‐Perovskite Four‐Terminal Tandem Solar Cell,Solar RRL

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Highly Efficient Sn–Pb Perovskite Solar Cell and High‐Performance All‐Perovskite Four‐Terminal Tandem Solar Cell
Solar RRL ( IF 6.0 ) Pub Date : 2019-12-04 , DOI: 10.1002/solr.201900396
Yanqing Yao ₁ , Feng Lv ₁ , Lie Luo ₁ , Liping Liao ₁ , Gang Wang ₁ , Debei Liu ₁ , Cunyun Xu ₁ , Guangdong Zhou ₂ , Xusheng Zhao ₃ , Qunliang Song ₁

Affiliation

Recently, Sn–Pb low‐bandgap (E_g) perovskite solar cells (PSCs) have attracted enormous interest as an ideal bottom cell for all‐perovskite tandem solar cells. However, due to the lack of high‐performance Sn–Pb low‐E_g PSCs, the development of all‐perovskite tandem solar cells is severely constrained. Herein, the performance of Sn–Pb low‐E_g (1.2 eV) PSC is improved significantly using diluted poly(3,4‐ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) as a hole transport layer with a maximum power conversion efficiency (PCE) up to 19.58% and short‐circuit current density of 29.81 mA cm⁻². The four‐terminal (4‐T) all‐perovskite tandem solar cell is constructed using an optical splitting system with this high‐efficient low‐E_g PSC as the bottom cell and a wide‐E_g (1.6 eV) PSC as the top cell. The best all‐perovskite 4‐T tandem solar cell shows a PCE of 23.26%.

中文翻译：

高效Sn-Pb钙钛矿太阳能电池和高性能全钙钛矿四端子串联太阳能电池

最近，作为全钙钛矿串联太阳能电池的理想底部电池，Sn-Pb低带隙（E _g）钙钛矿太阳能电池（PSC）引起了极大的兴趣。但是，由于缺乏高性能的Sn-Pb低E _g PSC，全钙钛矿型串联太阳能电池的开发受到严重限制。在此，使用稀释的聚（3,4-亚乙基二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）作为具有最大功率的空穴传输层，可显着改善Sn-Pb低E _g（1.2 eV）PSC的性能。转换效率（PCE）高达19.58％，短路电流密度为29.81 mA cm ^-2。四端子（4T）全钙钛矿串联太阳能电池是使用分光系统构建的，该高效低E _g PSC作为底部电池，而宽E _g（1.6 eV）PSC作为顶部电池细胞。最好的全钙钛矿4‐T串联太阳能电池的PCE为23.26％。

更新日期：2019-12-04

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