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|a 10.1002/adma.202211545
|2 doi
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|a pubmed24n1174.xml
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|a (DE-627)NLM352416483
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|a (NLM)36731421
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|a eng
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|a Yang, Lu
|e verfasserin
|4 aut
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|a 25.24%-Efficiency FACsPbI3 Perovskite Solar Cells Enabled by Intermolecular Esterification Reaction of DL-Carnitine Hydrochloride
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|c 2023
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 20.04.2023
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|a Date Revised 20.04.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2023 Wiley-VCH GmbH.
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|a Judicious tailoring of the interface between the SnO2 electron-transport layer and the perovskite buried surface plays a pivotal role in obtaining highly efficient and stable perovskite solar cells (PSCs). Herein, a DL-carnitine hydrochloride (DL) is incorporated into the perovskite/SnO2 interface to suppress the defect-states density. A DL-dimer is obtained at the interface by an intermolecular esterification reaction. For the SnO2 film, the Cl- in the DL-dimer can passivate oxygen vacancies (VO ) through electrostatic coupling, while the N in the DL-dimer can coordinate with the Sn4+ to passivate Sn-related defects. For the perovskite film, the DL-dimer can passivate FA+ defects via hydrogen bonding and Pb-related defects more efficiently than the DL monomer. Upon DL-dimer modification, the interfacial defects are effectively passivated and the quality of the resultant perovskite film is improved. As a result, the DL-treated device achieves a gratifying open-circuit voltage (VOC ) of 1.20 V and a champion power conversion efficiency (PCE) of 25.24%, which is a record value among all the reported FACsPbI3 PSCs to date. In addition, the unencapsulated devices exhibit a charming stability, sustaining 99.20% and 90.00% of their initial PCEs after aging in air for 1200 h and continuously operating at the maximum power point tracking for 500 h, respectively
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|a Journal Article
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|a DL-carnitine hydrochloride
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|a DL-dimers
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|a intermolecular esterification reaction
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|a passivation
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|a perovskite solar cells
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|a Zhou, Hui
|e verfasserin
|4 aut
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|a Duan, Yuwei
|e verfasserin
|4 aut
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|a Wu, Meizi
|e verfasserin
|4 aut
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|a He, Kun
|e verfasserin
|4 aut
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|a Li, Yong
|e verfasserin
|4 aut
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|a Xu, Dongfang
|e verfasserin
|4 aut
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|a Zou, Hong
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|a Yang, Shaoming
|e verfasserin
|4 aut
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|a Fang, Zhimin
|e verfasserin
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|a Liu, Shengzhong
|e verfasserin
|4 aut
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|a Liu, Zhike
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 16 vom: 15. Apr., Seite e2211545
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|7 nnns
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|g volume:35
|g year:2023
|g number:16
|g day:15
|g month:04
|g pages:e2211545
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|u http://dx.doi.org/10.1002/adma.202211545
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