Organic Ionic Plastic Crystals: A Promising Additive for Achieving Efficient and Stable Cspbi2br Perovskite Solar Cells
SSRN Electronic Journal
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
We firstly report an organic ionic plastic crystals additive, 1,1'-Spirobipyrrolidinium hexafluoride (SBP + PF 6 - ), to increase the power conversion efficiency and improve the stability by adjusting the crystallization of the perovskite light-absorbing layer and passivating the pinhole defects at the grain boundary. The detailed results reveal that PF 6 - molecular anions can fill the vacancy in the X-site and passivate the interface defects. Moreover, SBP + with high conductivity can be used to regulate A-site defects. The results show that the SBP + PF 6 - modified device exhibits a champion efficiency of 13.20%, enhanced by 19% than that of the control device. This work proposes not only a straightforward strategy to control the crystallization process in CsPbI 2 Br perovskite-based solar cells but also the functionality of organic ionic plastic crystals additive for chemical bonding and defects passivation to improve efficiency and stability.
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