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您的检索式：作者名="SHI Kewang"
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| 1 | Polymer passivation of defects in inorganic perovskite solar cells显示文摘Inorganic perovskite solar cells(IPSCs)have attained attention due to their excellent thermal and phase stability.In this work,we demonstrate a novel approach for fabricating IPSCs,using the strategies of interface passivation and anti-solvent before spin-coating perovskite.Poly(methyl methacrylate)(PMMA)and chlorobenzene(CB)are used as passivator and anti-solvent,respectively.The CB improves the perovskite crystal morphology.Meanwhile,PMMA passivates the defects between poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate)(PEDOT:PSS)and perovskite layer,thus increasing the short-circuit current.Excitingly,we find that PMMA benefits the grain boundaries(GBs)of perovskite,which makes it more humidity-resistant,increasing the stability of perovskite film.Especially,PMMA mitigates interfacial charge losses,and the devices based on CsPbI_(3-x)Br_(x)passivated by PMMA exhibit the power conversion efficiency(PCE)much higher than those based on pure CsPbI_(3-x)Br_(x). | ZHANG Meng ZHANG Fanghui SHI Kewang ZHANG Wenxi HUANG Jin QIU Huimin | 2022 | Optoelectronics Letters2022，18，6： | 1 |
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