Microstructural and optical properties of CdSe/CdS/ZnS core-shell-shell quantum dots
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Dea Uk | - |
dc.contributor.author | Kim, Dae Hun | - |
dc.contributor.author | Choi, Dong Hyuk | - |
dc.contributor.author | Kim, Sang Wook | - |
dc.contributor.author | Lee, Hong Seok | - |
dc.contributor.author | Yoo, Keon-Ho | - |
dc.contributor.author | Kim, Tae Whan | - |
dc.date.accessioned | 2021-08-02T17:51:13Z | - |
dc.date.available | 2021-08-02T17:51:13Z | - |
dc.date.created | 2021-05-12 | - |
dc.date.issued | 2016-01 | - |
dc.identifier.issn | 1094-4087 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/24715 | - |
dc.description.abstract | CdSe/CdS/ZnS core-shell-shell quantum dots (QDs) were synthesized by using a solution process. High-resolution transmission electron microscopy images and energy dispersive spectroscopy profiles confirmed that stoichiometric CdSe/CdS/ZnS core-shell-shell QDs were formed. Ultraviolet-visible absorption and photoluminescence (PL) spectra of CdSe/CdS/ZnS core-shell-shell QDs showed the dominant excitonic transitions from the ground electronic subband to the ground hole subband (1S(e)-1S(3/2)(h)). The PL mechanism is suggested; the carriers generated by the exciting high-energy photons in the shell region are relaxed to the band-edge states of the core region and recombined to emit lower-energy photons. The activation energy of the carriers confined in the CdSe/CdS/ZnS core-shell-shell QDs, as obtained from temperature-dependent PL spectra, was 200 meV. The quantum efficiency of the CdSe/CdS/ZnS core-shell-shell QDs at 300 K was estimated to be approximately 57%. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | OPTICAL SOC AMER | - |
dc.title | Microstructural and optical properties of CdSe/CdS/ZnS core-shell-shell quantum dots | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Tae Whan | - |
dc.identifier.doi | 10.1364/OE.24.00A350 | - |
dc.identifier.scopusid | 2-s2.0-84962068680 | - |
dc.identifier.wosid | 000369066300032 | - |
dc.identifier.bibliographicCitation | OPTICS EXPRESS, v.24, no.2, pp.A350 - A357 | - |
dc.relation.isPartOf | OPTICS EXPRESS | - |
dc.citation.title | OPTICS EXPRESS | - |
dc.citation.volume | 24 | - |
dc.citation.number | 2 | - |
dc.citation.startPage | A350 | - |
dc.citation.endPage | A357 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Optics | - |
dc.relation.journalWebOfScienceCategory | Optics | - |
dc.subject.keywordPlus | LUMINESCENT SOLAR CONCENTRATORS | - |
dc.subject.keywordPlus | LIGHT-EMITTING DEVICES | - |
dc.subject.keywordPlus | ENERGY-TRANSFER | - |
dc.subject.keywordPlus | NANOCRYSTALS | - |
dc.subject.keywordPlus | CDSE | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | CONVERSION | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | DIODES | - |
dc.subject.keywordPlus | LAYER | - |
dc.identifier.url | https://opg.optica.org/oe/fulltext.cfm?uri=oe-24-2-A350&id=333915&ibsearch=false | - |
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