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241216s2024 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202414803
|2 doi
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|a pubmed24n1633.xml
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|a eng
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|a Gu, Miaoli
|e verfasserin
|4 aut
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|a Unveiling Charge Carrier Dynamics at Organic-Inorganic S-Scheme Heterojunction Interfaces
|b Insights From Advanced EPR
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|c 2024
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|a Text
|b txt
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 16.12.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2024 Wiley‐VCH GmbH.
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|a Understanding charge carrier transfer at heterojunction interfaces is critical for advancing solar energy conversion technologies. This study utilizes continuous wave (CW), pulse, and time-resolved (TR) electron paramagnetic resonance (EPR) spectroscopy to explore the radical species formed at the TAPA (tris(4-aminophenyl)amine)-PDA (Terephthaldicarboxaldehyde)/ZnIn2S4 (TP/ZIS) heterojunction interface. CW and pulse EPR identify stable radical defects localized near the interface, accessible to water molecules. Time-resolved EPR reveals a photoinduced electron transfer from TP to ZIS, leading to the generation of spin-correlated radical pairs under light irradiation, signifying efficient charge carrier separation and spatial transfer within the S-scheme heterojunction. This electron transfer mechanism, confirmed through in situ X-ray photoelectron spectroscopy and femtosecond transient absorption spectroscopy, suppresses undesirable carrier recombination, extending charge carrier lifetimes. These findings provide novel insights into the transport direction of charge carriers at the S-scheme heterojunction interface, offering valuable guidance for designing highly efficient and stable organic-inorganic heterojunction photocatalysts for solar energy applications
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|a Journal Article
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|a EPR
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|a S‐scheme heterojunction
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|a extended carrier lifetime
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|a interfacial charge transfer
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| 650 |
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|a organic–inorganic
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|a Zhang, Jianjun
|e verfasserin
|4 aut
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|a Kurganskii, Ivan V
|e verfasserin
|4 aut
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|a Poryvaev, Artem S
|e verfasserin
|4 aut
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|a Fedin, Matvey V
|e verfasserin
|4 aut
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|a Cheng, Bei
|e verfasserin
|4 aut
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|a Yu, Jiaguo
|e verfasserin
|4 aut
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|a Zhang, Liuyang
|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 (2024) vom: 15. Dez., Seite e2414803
|w (DE-627)NLM098206397
|x 1521-4095
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|g year:2024
|g day:15
|g month:12
|g pages:e2414803
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|u http://dx.doi.org/10.1002/adma.202414803
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