DC Field | Value | Language |
---|---|---|
dc.contributor.author | May, Molly A. | - |
dc.contributor.author | Jiang, Tao | - |
dc.contributor.author | Du, Chenfeng | - |
dc.contributor.author | Park, Kyoung-Duck | - |
dc.contributor.author | Xu, Xiaodong | - |
dc.contributor.author | Belyanin, Alexey | - |
dc.contributor.author | Raschke, Markus B. | - |
dc.date.accessioned | 2022-12-26T01:20:21Z | - |
dc.date.available | 2022-12-26T01:20:21Z | - |
dc.date.created | 2022-12-23 | - |
dc.date.issued | 2021-01 | - |
dc.identifier.issn | 1530-6984 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/114694 | - |
dc.description.abstract | Transition-metal dichalcogenide heterostructures are an emergent platform for novel many-body states from exciton condensates to nanolasers. However, their exciton dynamics are difficult to disentangle due to multiple competing processes with time scales varying over many orders of magnitude. Using a configurable nano-optical cavity based on a plasmonic scanning probe tip, the radiative (rad) and nonradiative (nrad) relaxation of intra- and interlayer excitons is controlled. Tuning their relative rates in a WSe2/MoSe2 heterobilayer over 6 orders of magnitude in tip-enhanced photoluminescence spectroscopy reveals a cavityinduced crossover from nonradiative quenching to Purcell-enhanced radiation. Rate equation modeling with the interlayer charge transfer time as a reference clock allows for a comprehensive determination from the long interlayer exciton (IX) radiative lifetime tau(rad)(IX) = (94 +/- 27) ns to the 5 orders of Irad magnitude faster competing nonradiative lifetime tau(rad)(IX) = (0.6 +/- 0.2) ps. This approach of nanocavity clock spectroscopy is generally applicable to a wide range of excitonic systems with competing decay pathways. | - |
dc.language | English | - |
dc.publisher | American Chemical Society | - |
dc.relation.isPartOf | Nano Letters | - |
dc.title | Nanocavity Clock Spectroscopy: Resolving Competing Exciton Dynamics in WSe<sub>2</sub>/MoSe<sub>2</sub> Heterobilayers | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.nanolett.0c03979 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | Nano Letters, v.21, no.1, pp.522 - 528 | - |
dc.identifier.wosid | 000611082000070 | - |
dc.citation.endPage | 528 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 522 | - |
dc.citation.title | Nano Letters | - |
dc.citation.volume | 21 | - |
dc.contributor.affiliatedAuthor | Park, Kyoung-Duck | - |
dc.identifier.scopusid | 2-s2.0-85098788607 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | ULTRAFAST CHARGE-TRANSFER | - |
dc.subject.keywordPlus | INDIRECT INTERLAYER EXCITONS | - |
dc.subject.keywordPlus | MODE VOLUMES | - |
dc.subject.keywordPlus | WAALS | - |
dc.subject.keywordPlus | TRANSITION | - |
dc.subject.keywordPlus | MOS2/WS2 | - |
dc.subject.keywordPlus | HETEROSTRUCTURES | - |
dc.subject.keywordPlus | MONOLAYER | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | EMITTERS | - |
dc.subject.keywordAuthor | Interlayer exciton | - |
dc.subject.keywordAuthor | exciton lifetime | - |
dc.subject.keywordAuthor | plasmonic nanocavity | - |
dc.subject.keywordAuthor | near-field spectroscopy | - |
dc.subject.keywordAuthor | tip-enhanced photoluminescence | - |
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.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
library@postech.ac.kr Tel: 054-279-2548
Copyrights © by 2017 Pohang University of Science ad Technology All right reserved.