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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202208325
|2 doi
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|a pubmed24n1158.xml
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|a (DE-627)NLM347602916
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|a (NLM)36245323
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Cheng, Wenjie
|e verfasserin
|4 aut
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|a N -(2-aminoethyl) Acetamide Additive Enables Phase-Pure and Stable α-FAPbI3 for Efficient Self-Powered Photodetectors
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|c 2022
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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 Completed 23.12.2022
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|a Date Revised 23.12.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Wiley-VCH GmbH.
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|a Formamidinium-lead triiodide (FAPbI3 ) perovskite is considered as one of the most promising perovskite materials for high-performance photodetectors because of its narrow bandgap and superior thermal stability. Nevertheless, to realize efficient carrier transport and highly performing photodetectors, it imposes the requirement of fabricating α-FAPbI3 with pure phase, preferred crystal orientation, large grain size, and passivated interface, which still remains challenging. Here, a facile strategy based on additive engineering to obtain pure-phase FAPbI3 perovskite films by introducing N-(2-aminoethyl) acetamide into perovskite precursors is reported. The formation of chemical bond and hydrogen bond between N-(2-aminoethyl) acetamide and perovskite reduces the potential barrier in the phase-transition process from an intermediate yellow phase to a final black phase, passivates the defects of the film, and leads to a high-quality and phase-pure α-FAPbI3 perovskite. A self-powered photodetector based on the as-fabricated FAPbI3 film exhibits a maximum responsivity of 0.48 A W-1 at 700 nm with a peak external quantum efficiency of 95% at 440 nm. Moreover, the optimized device remains 83% of the initial performance after 576 h storage at ambient condition. This work provides a simple and feasible scheme for the preparation of high-quality phase-pure α-FAPbI3 perovskite and associated devices
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|a Journal Article
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|a FAPbI3
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|a additive
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4 |
|a perovskites
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4 |
|a phase transitions
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| 650 |
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4 |
|a photodetectors
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| 700 |
1 |
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|a He, Xiang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Jian-Gan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Tian, Wei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Liang
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 34(2022), 51 vom: 17. Dez., Seite e2208325
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:34
|g year:2022
|g number:51
|g day:17
|g month:12
|g pages:e2208325
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| 856 |
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|u http://dx.doi.org/10.1002/adma.202208325
|3 Volltext
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