Interface Carriers and Enhanced Electron-Phonon Coupling Effect in Al2O3/TiO2 Heterostructure Revealed by Resonant Inelastic Soft X-Ray Scattering
DC Field | Value | Language |
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dc.contributor.author | Shao, Yu-Cheng | - |
dc.contributor.author | Kuo, Cheng-Tai | - |
dc.contributor.author | Feng, Xuefei | - |
dc.contributor.author | Chuang, Yi-De | - |
dc.contributor.author | Seok, Tae Jun | - |
dc.contributor.author | Choi, Ji Hyeon | - |
dc.contributor.author | Park, Tae Joo | - |
dc.contributor.author | Cho, Deok-Yong | - |
dc.date.accessioned | 2021-07-28T08:09:18Z | - |
dc.date.available | 2021-07-28T08:09:18Z | - |
dc.date.issued | 2021-08 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.issn | 1616-3028 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/105750 | - |
dc.description.abstract | The electronic structure and the electron-phonon couplings in a novel mass-production-compatible Al2O3/TiO2 2D electron system (2DES) are investigated using resonant inelastic soft X-ray scattering. The experimental data from the samples of various TiO2 thicknesses unequivocally show that the Ti3+ state indeed exists at the deep interface to serve as an n-type dopant for the 2DES. The electronic structure of Ti3+ species is scrutinized as entirely separated from that of the Ti4+ host lattice. Furthermore, features of sub-eV energy loss phonon modes are clearly observed, indicating substantial electron-phonon coupling effects. Such low energy loss features are enhanced in thinner TiO2 samples, implying that polaronic local lattice deformation is enhanced due to the presence of Ti3+. These findings suggest that the 2DES properties can be controlled via well-established TiO2 engineering, thereby enthroning the binary oxide heterostructure as a promising candidate for 2DES device applications. | - |
dc.format.extent | 9 | - |
dc.language | 영어 | - |
dc.language.iso | ENG | - |
dc.publisher | John Wiley & Sons Ltd. | - |
dc.title | Interface Carriers and Enhanced Electron-Phonon Coupling Effect in Al2O3/TiO2 Heterostructure Revealed by Resonant Inelastic Soft X-Ray Scattering | - |
dc.type | Article | - |
dc.publisher.location | 독일 | - |
dc.identifier.doi | 10.1002/adfm.202104430 | - |
dc.identifier.scopusid | 2-s2.0-85108529347 | - |
dc.identifier.wosid | 000663865400001 | - |
dc.identifier.bibliographicCitation | Advanced Functional Materials, v.31, no.35, pp 1 - 9 | - |
dc.citation.title | Advanced Functional Materials | - |
dc.citation.volume | 31 | - |
dc.citation.number | 35 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 9 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | ATOMIC LAYER DEPOSITION | - |
dc.subject.keywordPlus | PHOTOCATALYTIC ACTIVITY | - |
dc.subject.keywordPlus | TIO2 | - |
dc.subject.keywordPlus | ANATASE | - |
dc.subject.keywordPlus | FUNDAMENTALS | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordAuthor | 2D electron gas | - |
dc.subject.keywordAuthor | aluminum oxide | - |
dc.subject.keywordAuthor | dd excitation | - |
dc.subject.keywordAuthor | electron-phonon coupling | - |
dc.subject.keywordAuthor | oxide heterostructures | - |
dc.subject.keywordAuthor | resonant inelastic X-ray scattering | - |
dc.subject.keywordAuthor | titanium oxide | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/adfm.202104430 | - |
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