Carrier depletion mediated exciton-surface plasmon coupling at the mesoporous TiO2/Ag interface
DC Field | Value | Language |
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dc.contributor.author | Kim, Y. | - |
dc.contributor.author | Kim, J. | - |
dc.contributor.author | Chang, M. | - |
dc.contributor.author | Park, B. | - |
dc.date.accessioned | 2021-12-17T02:41:27Z | - |
dc.date.available | 2021-12-17T02:41:27Z | - |
dc.date.created | 2021-12-17 | - |
dc.date.issued | 2022-02-01 | - |
dc.identifier.issn | 0169-4332 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/20974 | - |
dc.description.abstract | We systematically investigated the effect of the change in the carrier depletion width in the TiO2 on the exciton-plasmon coupling at the TiO2/Ag nanoparticle (NP) interface, excluding complications associated with the optical and electrochemical screening of Ag NPs. We found that Ag NP-induced interfacial traps are coupled with the energy band bending in the TiO2 under illumination, suppressing plasmon-induced interfacial charge separation at the TiO2/Ag NP interface. Under illumination with solar simulator including UV, reduction in the depletion width of the TiO2 facilitated back-transfer of the excited electrons in the TiO2 to Ag NP-induced interfacial localized states, while green light irradiation enhanced the photocurrent by plasmonic-induced charge separation. Surface potential change depending on light irradiation is discussed relating to exciton-plasmon coupling at the TiO2/Ag NP interface combined with Mott-Schottky analysis. For the first time, we distinguished the optical and electrochemical screening by the plasmonic nanostructure from carrier depletion-induced band bending at the TiO2/Ag NP interface. We demonstrated the significant effect of the localized interfacial states and the energy band bending on the exciton-plasmon coupling. © 2021 Elsevier B.V. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Carrier depletion mediated exciton-surface plasmon coupling at the mesoporous TiO2/Ag interface | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, B. | - |
dc.identifier.doi | 10.1016/j.apsusc.2021.151690 | - |
dc.identifier.scopusid | 2-s2.0-85118557327 | - |
dc.identifier.wosid | 000729593100003 | - |
dc.identifier.bibliographicCitation | Applied Surface Science, v.575 | - |
dc.relation.isPartOf | Applied Surface Science | - |
dc.citation.title | Applied Surface Science | - |
dc.citation.volume | 575 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Coatings & Films | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | PHOTOCATALYTIC ACTIVITY | - |
dc.subject.keywordPlus | AG | - |
dc.subject.keywordPlus | HYBRID | - |
dc.subject.keywordAuthor | Carrier depletion | - |
dc.subject.keywordAuthor | Exciton-plasmonic coupling TiO2 | - |
dc.subject.keywordAuthor | Interfacial charge separation | - |
dc.subject.keywordAuthor | Surface plasmon | - |
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