材料科学
钙钛矿(结构)
能量转换效率
钙钛矿太阳能电池
蒸发
涂层
化学工程
制作
图层(电子)
短路
光电子学
纳米技术
电压
热力学
病理
工程类
替代医学
物理
医学
量子力学
作者
Van Son Nguyen,Iwan Zimmermann,Elisa Grépin,Karim Medjoubi,Sébastien Jutteau,Frédérique Donsanti,Elise Bruhat,A. Duchatelet,Solenn Berson,Jean Rousset
标识
DOI:10.1016/j.mssp.2023.107358
摘要
The present paper reports for the first time on the fabrication of highly efficient solar cells based on a perovskite layer produced by a sequential deposition method coupling thermal evaporation and slot-die coating. Thermally evaporated PbI2 films were converted into perovskite by slot-die coating a solution containing the organic MA and FA cations. Careful optimization of the coating parameters resulted in uniform double-cation perovskite films with an optical band gap of 1.64 eV. This work highlights the need for a DMSO (Dimethyl Sulfoxide) vapor treatment performed on the evaporated PbI2 film to obtain high-quality perovskite layers after the conversion step. Thus, a simple and short pre-treatment has been designed to induce the formation of porous PbI2(DMSO)x complex phases enabling a fast and complete perovskite conversion process. Thereby, the champion device delivers a power conversion efficiency of 19.8% with enhanced short-circuit current, open-circuit voltage, and fill factor compared to control devices without treatment.
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