环丁砜
钙钛矿(结构)
材料科学
制作
结晶
成核
傅里叶变换红外光谱
光电子学
化学工程
结晶学
化学
有机化学
病理
工程类
医学
替代医学
溶剂
作者
Hsin‐Hsiang Huang,Qi-Han Liu,Hsinhan Tsai,Shreetu Shrestha,Li‐Yun Su,Po‐Tuan Chen,Yu-Ting Chen,Tso-An Yang,Hsin Chang Lu,Ching-Hsiang Chuang,King‐Fu Lin,Syang‐Peng Rwei,Wanyi Nie,Leeyih Wang
出处
期刊:Joule
[Elsevier]
日期:2021-04-01
卷期号:5 (4): 958-974
被引量:62
标识
DOI:10.1016/j.joule.2021.02.012
摘要
Summary
The one-step antisolvent approach is a widely employed method for fabricating perovskite devices at a low cost. However, the current antisolvent approach requires a strict set of processing conditions to obtain high-quality perovskite layers. Here, we introduce sulfolane as an additive in the perovskite precursor to convert the perovskite phase via a new reaction route, providing a large degree of flexibility to process crystalline perovskite layers with high uniformity on a large scale. As it is revealed by X-ray diffraction and Fourier-transform infrared spectroscopy findings, we find that the key concept lies in intermolecular hydrogen-bonding forces' interaction between sulfolane and methylammonium iodide, which slows down the nucleation and subsequently the crystallization process. As a result, we demonstrate a mini module, 36.6 cm2 active area, and achieve a record PCE of 16.06%. More importantly, the encapsulated mini module retained about 90% of the initial performance after operating at the maximum power point under simulated AM1.5G irradiation for 250 h at 50°C.
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