材料科学
钙钛矿(结构)
钝化
异质结
能量转换效率
钙钛矿太阳能电池
萃取(化学)
光电子学
纳米技术
化学工程
化学
色谱法
工程类
图层(电子)
作者
Jiage Lin,Rong Huang,Xin Peng,Jianxin Zhang,Guizhi Zhang,Chen Wang,Zhenxiao Pan,Huashang Rao,Xinhua Zhong
标识
DOI:10.1002/adma.202404561
摘要
Carbon-based perovskite solar cells (C-PSCs) have the advantages of low-cost and high-stability, but their photovoltaic performance is limited by severe defect-induced recombination and low hole extraction efficiency. 1D perovskite is proven to effectively passivate the defects on the perovskite surface, therefore reducing non-radiative recombination loss. However, the unsuitable energy level of most 1D perovskite renders an undesired downward band bending for 3D perovskite, resulting in a high hole extraction barrier and reduced hole extraction efficiency. Therefore, rational design and selection of 1D perovskites as the modifiers are essential in balancing defect passivation and hole extraction. In this work, based on simulation calculations, thiocholine iodide (TchI) is selected to prepare 1D perovskite with high work function and then constructs TchPbI
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