环丁砜
钙钛矿(结构)
材料科学
制作
结晶
成核
简单(哲学)
纳米技术
质量(理念)
薄膜
光电子学
计算机科学
化学工程
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 Lu,Ching-Hsiang Chuang,King-Fu Lin,Syang-Peng Rwei,Wanyi Nie,Leeyih Wang
出处
期刊:Joule
[Elsevier]
日期:2021-04-21
卷期号:5 (4): 958-974
被引量:16
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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