Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes

© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 31(2019), 40 vom: 11. Okt., Seite e1903239
1. Verfasser: Zheng, Ding (VerfasserIn)
Weitere Verfasser: Peng, Ruixiang, Wang, Gang, Logsdon, Jenna Leigh, Wang, Binghao, Hu, Xiaobing, Chen, Yao, Dravid, Vinayak P, Wasielewski, Michael R, Yu, Junsheng, Huang, Wei, Ge, Ziyi, Marks, Tobin J, Facchetti, Antonio
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2019
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article bottom-up passivation electron-transport layer perovskite solar cells zwitterions
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245 1 0 |a Simultaneous Bottom-Up Interfacial and Bulk Defect Passivation in Highly Efficient Planar Perovskite Solar Cells using Nonconjugated Small-Molecule Electrolytes 
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520 |a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. 
520 |a Recent perovskite solar cell (PSC) advances have pursued strategies for reducing interfacial energetic mismatches to mitigate energy losses, as well as to minimize interfacial and bulk defects and ion vacancies to maximize charge transfer. Here nonconjugated multi-zwitterionic small-molecule electrolytes (NSEs) are introduced, which act not only as charge-extracting layers for barrier-free charge collection at planar triple cation PSC cathodes but also passivate charged defects at the perovskite bulk/interface via a spontaneous bottom-up passivation effect. Implementing these synergistic properties affords NSE-based planar PSCs that deliver a remarkable power conversion efficiency of 21.18% with a maximum VOC = 1.19 V, in combination with suppressed hysteresis and enhanced environmental, thermal, and light-soaking stability. Thus, this work demonstrates that the bottom-up, simultaneous interfacial and bulk trap passivation using NSE modifiers is a promising strategy to overcome outstanding issues impeding further PSC advances 
650 4 |a Journal Article 
650 4 |a bottom-up passivation 
650 4 |a electron-transport layer 
650 4 |a perovskite solar cells 
650 4 |a zwitterions 
700 1 |a Peng, Ruixiang  |e verfasserin  |4 aut 
700 1 |a Wang, Gang  |e verfasserin  |4 aut 
700 1 |a Logsdon, Jenna Leigh  |e verfasserin  |4 aut 
700 1 |a Wang, Binghao  |e verfasserin  |4 aut 
700 1 |a Hu, Xiaobing  |e verfasserin  |4 aut 
700 1 |a Chen, Yao  |e verfasserin  |4 aut 
700 1 |a Dravid, Vinayak P  |e verfasserin  |4 aut 
700 1 |a Wasielewski, Michael R  |e verfasserin  |4 aut 
700 1 |a Yu, Junsheng  |e verfasserin  |4 aut 
700 1 |a Huang, Wei  |e verfasserin  |4 aut 
700 1 |a Ge, Ziyi  |e verfasserin  |4 aut 
700 1 |a Marks, Tobin J  |e verfasserin  |4 aut 
700 1 |a Facchetti, Antonio  |e verfasserin  |4 aut 
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773 1 8 |g volume:31  |g year:2019  |g number:40  |g day:11  |g month:10  |g pages:e1903239 
856 4 0 |u http://dx.doi.org/10.1002/adma.201903239  |3 Volltext 
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