Enhanced UV-light emission in ZnO/ZnS quantum dot nanocrystals
DC Field | Value | Language |
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dc.contributor.author | Kim, K.-E. | - |
dc.contributor.author | Kim, W. | - |
dc.contributor.author | Sung, Y.-M. | - |
dc.date.accessioned | 2021-09-09T15:47:10Z | - |
dc.date.available | 2021-09-09T15:47:10Z | - |
dc.date.issued | 2008 | - |
dc.identifier.issn | 1225-0562 | - |
dc.identifier.issn | 2287-7258 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/125303 | - |
dc.description.abstract | ZnO/ZnS core/shell nanocrystals (∼5-7 nm in diameter) with a size close to the quantum confinement regime were successfully synthesized using polyol and thermolysis. X-ray diffraction (XRD) and high-resolution transmission electron microscopy (HRTEM) analyses reveal that they exist in a highly crystalline wurtzite structure. The ZnO/ZnS nanocrystals show significantly enhanced UV-light emission (∼384 nm) due to effective surface passivation of the ZnO core, whereas the emission of green light (∼550 nm) was almost negligible. They also showed slight photoluminescence (PL) red-shift, which is possibly due to further growth of the ZnO core and/or the extension of the electron wave function to the shell. The ZnO/ZnS core/shell nanocrystals demonstrate strong potential for use as low-cost UV-light emitting devices. | - |
dc.format.extent | 5 | - |
dc.language | 한국어 | - |
dc.language.iso | KOR | - |
dc.title | Enhanced UV-light emission in ZnO/ZnS quantum dot nanocrystals | - |
dc.type | Article | - |
dc.publisher.location | 대한민국 | - |
dc.identifier.doi | 10.3740/MRSK.2008.18.12.640 | - |
dc.identifier.scopusid | 2-s2.0-69949151472 | - |
dc.identifier.bibliographicCitation | Korean Journal of Materials Research, v.18, no.12, pp 640 - 644 | - |
dc.citation.title | Korean Journal of Materials Research | - |
dc.citation.volume | 18 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 640 | - |
dc.citation.endPage | 644 | - |
dc.type.docType | Article | - |
dc.identifier.kciid | ART001299140 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scopus | - |
dc.description.journalRegisteredClass | kci | - |
dc.subject.keywordPlus | Core/shell nanocrystals | - |
dc.subject.keywordPlus | Electron wave functions | - |
dc.subject.keywordPlus | Green light | - |
dc.subject.keywordPlus | Quantum Dot | - |
dc.subject.keywordPlus | Red shift | - |
dc.subject.keywordPlus | Surface passivation | - |
dc.subject.keywordPlus | UV-emission | - |
dc.subject.keywordPlus | UV-light | - |
dc.subject.keywordPlus | Wurtzite structure | - |
dc.subject.keywordPlus | ZnO | - |
dc.subject.keywordPlus | ZnO/ZnS | - |
dc.subject.keywordPlus | High resolution transmission electron microscopy | - |
dc.subject.keywordPlus | Light | - |
dc.subject.keywordPlus | Light emission | - |
dc.subject.keywordPlus | Passivation | - |
dc.subject.keywordPlus | Photoluminescence | - |
dc.subject.keywordPlus | Semiconducting zinc compounds | - |
dc.subject.keywordPlus | Semiconductor quantum dots | - |
dc.subject.keywordPlus | Wave functions | - |
dc.subject.keywordPlus | X ray diffraction | - |
dc.subject.keywordPlus | X ray diffraction analysis | - |
dc.subject.keywordPlus | Zinc oxide | - |
dc.subject.keywordPlus | Zinc sulfide | - |
dc.subject.keywordPlus | Nanocrystals | - |
dc.subject.keywordAuthor | Nanocrystals | - |
dc.subject.keywordAuthor | Photoluminescence | - |
dc.subject.keywordAuthor | UV-emission | - |
dc.subject.keywordAuthor | ZnO | - |
dc.subject.keywordAuthor | ZnO/ZnS | - |
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