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DC Field | Value | Language |
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dc.citation.number | 33 | - |
dc.citation.startPage | 2102893 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 31 | - |
dc.contributor.author | Lee, Hyeongwoo | - |
dc.contributor.author | Kim, Inki | - |
dc.contributor.author | Park, Chulho | - |
dc.contributor.author | Kang, Mingu | - |
dc.contributor.author | Choi, Jinseong | - |
dc.contributor.author | Jeong, Kwang-Yong | - |
dc.contributor.author | Mun, Jungho | - |
dc.contributor.author | Kim, Yeseul | - |
dc.contributor.author | Park, Jeonghoon | - |
dc.contributor.author | Raschke, Markus B. | - |
dc.contributor.author | Park, Hong-Gyu | - |
dc.contributor.author | Jeong, Mun Seok | - |
dc.contributor.author | Rho, Junsuk | - |
dc.contributor.author | Park, Kyoung-Duck | - |
dc.date.accessioned | 2023-12-21T15:37:17Z | - |
dc.date.available | 2023-12-21T15:37:17Z | - |
dc.date.created | 2021-07-13 | - |
dc.date.issued | 2021-08 | - |
dc.description.abstract | In atomically thin semiconductors, localized exciton (X-L) coupled to light provides a new class of optical sources for potential applications in quantum communication. However, in most studies, X-L photoluminescence (PL) from crystal defects has mainly been observed in cryogenic conditions because of their sub-wavelength emission region and low quantum yield at room temperature. Hybrid-modality of cavity-spectroscopy to induce and probe the X-L emissions at the nanoscale in atomically thin semiconductors is presented. By placing a WSe2 monolayer on the two extremely sharp Au tips in a bowtie antenna with a radius of curvature of <1 nm, tensile strain of approximate to 0.3% is effectively induced in a L states. The Au tip then approaches the strained crystal region to enhance the X-L emissions and probe them with tip-enhanced photoluminescence (TEPL) spectroscopy at room temperature. Through this triple-sharp-tips cavity-spectroscopy with <15 nm spatial resolution, TEPL enhancement as high as approximate to 4.0 x 10(4) by the Purcell effect is achieved, and peak energy shifts of X-L up to approximate to 40 meV are observed. This approach combining nano-cavity and -spectroscopy provides a systematic way to induce and probe the radiative emission of localized excitons in 2D semiconductors offering new strategies for dynamic quantum nano-optical devices. | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.31, no.33, pp.2102893 | - |
dc.identifier.doi | 10.1002/adfm.202102893 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.scopusid | 2-s2.0-85108188395 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/54082 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/adfm.202102893 | - |
dc.identifier.wosid | 000663172300001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Inducing and Probing Localized Excitons in Atomically Thin Semiconductors via Tip-Enhanced Cavity-Spectroscopy | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | cavity-spectroscopy | - |
dc.subject.keywordAuthor | localized exciton | - |
dc.subject.keywordAuthor | nano-cavity | - |
dc.subject.keywordAuthor | plasmonic structures | - |
dc.subject.keywordAuthor | purcell effect | - |
dc.subject.keywordAuthor | tip-enhanced photoluminescence | - |
dc.subject.keywordPlus | SINGLE-PHOTON EMITTERS | - |
dc.subject.keywordPlus | QUANTUM EMITTERS | - |
dc.subject.keywordPlus | MONOLAYER | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | STATES | - |
dc.subject.keywordPlus | ABSORPTION | - |
dc.subject.keywordPlus | MECHANISMS | - |
dc.subject.keywordPlus | DEVICES | - |
dc.subject.keywordPlus | DIODES | - |
dc.subject.keywordPlus | STRAIN | - |
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