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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202302298
|2 doi
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|a pubmed24n1290.xml
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|a (DE-627)NLM360780296
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|a (NLM)37578639
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|a DE-627
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|a eng
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|a Wang, Yaxin
|e verfasserin
|4 aut
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|a Intermediate Phase Free α-FAPbI3 Perovskite via Green Solvent Assisted Perovskite Single Crystal Redissolution Strategy
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 12.02.2024
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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 Perovskite single-crystal redissolution (PSCR) strategy is highly desired for efficient formamidinium lead triiodide (FAPbI3 ) perovskite photovoltaics with enhanced phase purity, improved film quality, low trap-state density, and good stability. However, the phase transition and crystallization dynamics of FAPbI3 remain unclear in the PSCR process compared to the conventional fabrication from the mixing of precursor materials. In this work, a green-solvent-assisted (GSA) method is employed to synthesize centimeter-sized α-FAPbI3 single crystals, which serve as the high-purity precursor to fabricate perovskite films. The α-FAPbI3 PSCR strategy facilitates direct α-phase formation and inhibits the complex intermediate phases monitored by in situ grazing-incidence wide-angle X-ray scattering. Moreover, the α-phase stability is prolonged due to the relaxation of the residual lattice strain through the isotropic orientation phase growth. Consequently, the GSA-assisted PSCR strategy effectively promotes crystallization and suppresses non-radiative recombination in perovskite solar cells, which boosts the device efficiency from 22.08% to 23.92% with significantly enhanced open circuit voltage. These findings provide deeper insight into the PSCR process in terms of its efficacy in phase formation and lattice strain release. The green low-cost solvent may also offer a new and ideal solvent candidate for large-scale production of perovskite photovoltaics
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|a Journal Article
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|a FAPbI3 perovskite solar cell
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|a crystallization
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|a green solvent
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|a phase transition
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|a single crystal redissolution
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|a Shi, Zejiao
|e verfasserin
|4 aut
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|a Wang, Yanyan
|e verfasserin
|4 aut
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1 |
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|a Khan, Qudrat Ullah
|e verfasserin
|4 aut
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|a Li, Xiaoguo
|e verfasserin
|4 aut
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|a Deng, Liangliang
|e verfasserin
|4 aut
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|a Pan, Yiyi
|e verfasserin
|4 aut
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|a Zhang, Xin
|e verfasserin
|4 aut
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|a Yang, Yingguo
|e verfasserin
|4 aut
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|a Yue, Xiaofei
|e verfasserin
|4 aut
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|a Hu, Tianxiang
|e verfasserin
|4 aut
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|a Liu, Fengcai
|e verfasserin
|4 aut
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1 |
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|a Wang, Haoliang
|e verfasserin
|4 aut
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| 700 |
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|a Li, Chongyuan
|e verfasserin
|4 aut
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|a Liu, Kai
|e verfasserin
|4 aut
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|a Yuan, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Cong, Chunxiao
|e verfasserin
|4 aut
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|a Yu, Anran
|e verfasserin
|4 aut
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| 700 |
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|a Zhan, Yiqiang
|e verfasserin
|4 aut
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| 773 |
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8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 35(2023), 46 vom: 14. Nov., Seite e2302298
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:35
|g year:2023
|g number:46
|g day:14
|g month:11
|g pages:e2302298
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|u http://dx.doi.org/10.1002/adma.202302298
|3 Volltext
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|d 35
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