材料科学
钙钛矿(结构)
晶界
能量转换效率
粒度
纳米技术
化学工程
光电子学
复合材料
微观结构
工程类
作者
Jiujiang Chen,Jian Liu,Yifei Li,Peng Xu,Lisha Xie,Yuanyuan Meng,Haodong Wu,Xiaobang Shang,Su Zhao,Jun Pan,Chuanxiao Xiao,Mengjin Yang,Ziyi Ge
标识
DOI:10.1002/adfm.202314652
摘要
Abstract In recent years, perovskite solar cells have attained unprecedented advancements in power conversion efficiency, yet their commercialization remains a formidable challenge. Addressing this challenge relies on developing an affordable and scalable method for manufacturing top‐notch perovskite films. This study presents an innovative strategy, employing both gas quenching technology and ultrasonic‐assisted processing (UAP), to fabricate high‐caliber perovskite thin films. The UAP process enhances the grain size of the perovskite film, reduces grain boundary defects, improves carrier extraction and transport, and suppresses carrier nonradiative recombination. Furthermore, it effectively reduces residual stress and mitigates lattice distortion in the perovskite crystals. Ultimately, efficient and stable inverted perovskite solar cells using FA 0.87 Cs 0.13 PbI 2.7 Br 0.3 and FA 0.85 MA 0.1 Cs 0.05 PbI 3 perovskite are successfully prepared. The target device achieved a power conversion efficiency of 22.32% and 24.51%, respectively. Moreover, the target devices exhibited enhanced photostability. This work provides a cost‐effective and scalable method for producing high‐quality perovskite films, paving the way for the commercialization of perovskite solar cells.
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