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首页> 外文期刊>Advanced energy materials >Lanthanide Ions Doped CsPbBr_3 Halides for HTM-Free 10.14%-Efficiency Inorganic Perovskite Solar Cell with an Ultrahigh Open-Circuit Voltage of 1.594 V
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Lanthanide Ions Doped CsPbBr_3 Halides for HTM-Free 10.14%-Efficiency Inorganic Perovskite Solar Cell with an Ultrahigh Open-Circuit Voltage of 1.594 V

机译：镧系元素离子掺杂的CsPbBr_3卤化物用于无HTM的10.14％效率的无机钙钛矿太阳能电池，具有1.594 V的超高开路电压

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摘要

All-inorganic cesium lead bromide (CsPbBr3) perovskite solar cells have attracted enormous attention owing to their outstanding stability in comparison with organic-inorganic hybrid devices. The greatest weakness for inorganic CsPbBr3 solar cells is their lower power conversion efficiencies, mainly arising from inferior light-absorbance range and serious charge recombination at interfaces or within perovskite films. To address this issue, the lattice doping of lanthanide ions (Ln(3+) = La3+, Ce3+, Nd3+, Sm3+, Eu3+, Gd3+, Tb3+, Ho3+, Er3+, Yb3+, and Lu3+) into CsPbBr3 films for all-inorganic solar cells free of hole-transporting materials and precious metal electrodes is presented. Arising from the enlarged grain size and prolonged carrier lifetimes upon incorporating Ln(3+) ions into perovskite lattice, the performances of these inorganic CsPbBr3 solar cell devices are significantly enhanced, achieving a champion efficiency as high as 10.14% and an ultrahigh open-circuit voltage of 1.594 V under one sun illumination. Meanwhile, the nearly unchanged efficiency upon persistent attack by 80% RH in air atmosphere over 110 d and enhanced thermal stability at 80 degrees C over 60 d provide new opportunities of promoting commercialization of all-inorganic CsPbBr3 perovskite solar cells.
机译：全无机溴化铯铅（CsPbBr3）钙钛矿太阳能电池由于其与有机-无机混合器件相比的出色稳定性而备受关注。无机CsPbBr3太阳能电池的最大弱点是其较低的功率转换效率，这主要是由于吸光率范围较差以及界面处或钙钛矿薄膜内部的电荷严重复合所致。为解决此问题，将镧系元素离子（Ln（3+）= La3 +，Ce3 +，Nd3 +，Sm3 +，Eu3 +，Gd3 +，Tb3 +，Ho3 +，Er3 +，Yb3 +和Lu3 +的晶格掺杂到全无机太阳能电池的CsPbBr3薄膜中）提出了一种不含空穴传输材料和贵金属电极的材料。将Ln（3+）离子掺入钙钛矿晶格中后，由于晶粒尺寸增大和载流子寿命延长，这些无机CsPbBr3太阳能电池器件的性能得到了显着提高，实现了高达10.14％的冠军效率和超高开路一个阳光照射下的电压为1.594V。同时，在110 d的空气中持续80％RH持续侵蚀后的效率几乎不变，并且在60 d的80℃下热稳定性增强，这为促进全无机CsPbBr3钙钛矿太阳能电池的商业化提供了新的机会。

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