Efficient radiative cooling emitter adopting the wavelength conversion of giant CdSe/ZnS core-shell nanocrystals
DC Field | Value | Language |
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dc.contributor.author | Son, S. | - |
dc.contributor.author | Jeon, S. | - |
dc.contributor.author | Bae, J. H. | - |
dc.contributor.author | Lee, S. Y. | - |
dc.contributor.author | Chae, D. | - |
dc.contributor.author | Chae, J-Y | - |
dc.contributor.author | Paik, T. | - |
dc.contributor.author | Lee, H. | - |
dc.contributor.author | Oh, S. J. | - |
dc.date.accessioned | 2022-02-15T19:41:52Z | - |
dc.date.available | 2022-02-15T19:41:52Z | - |
dc.date.created | 2022-02-08 | - |
dc.date.issued | 2021-11 | - |
dc.identifier.issn | 2542-5293 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/135896 | - |
dc.description.abstract | Daytime radiative cooling is an eco-friendly, temperature-cooling mechanism that uses the inherent properties of a material without energy consumption. To realize a high daytime radiative cooling ability, it is necessary to minimize light absorption in the solar spectrum (0.3-2.5 mu m) and maximize the emissivity in the atmospheric transmittance window (8-13 mu m). Currently, the solar reflective layer of a radiative cooling material has the limitation of absorbing UV light, which can reduce the cooling performance. We attempted to solve this problem via UV-to-visible wavelength conversion using CdSe/ZnS giant core-shell structures. By applying this strategy, a wavelength conversion-type radiative cooling emitter (WC-RCE) was fabricated using "giant" CdSe/ZnS core-shell nanocrystals embedded into a polymeric membrane to establish minimized absorption within the UV and short-visible regions, which constitute up to 17.28% of the total solar spectrum. The applied g-NCs have a high photoluminescence quantum yield and a large Stokes shift, and can resolve the absorption in reflective layers, such as silver, by re-emitting the wavelength of the absorbed UV rays into the visible region. Compared with a conventional RCE, the WC-RCE achieves further cooling by 0.38 degrees C on average from outdoor measurements. Thus, a wavelength conversion strategy was confirmed for efficient daytime radiative cooling. (C) 2021 Published by Elsevier Ltd. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER | - |
dc.subject | SYSTEM | - |
dc.title | Efficient radiative cooling emitter adopting the wavelength conversion of giant CdSe/ZnS core-shell nanocrystals | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Oh, S. J. | - |
dc.identifier.doi | 10.1016/j.mtphys.2021.100496 | - |
dc.identifier.scopusid | 2-s2.0-85111981630 | - |
dc.identifier.wosid | 000701980400013 | - |
dc.identifier.bibliographicCitation | MATERIALS TODAY PHYSICS, v.21 | - |
dc.relation.isPartOf | MATERIALS TODAY PHYSICS | - |
dc.citation.title | MATERIALS TODAY PHYSICS | - |
dc.citation.volume | 21 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | SYSTEM | - |
dc.subject.keywordAuthor | CdSe/ZnS | - |
dc.subject.keywordAuthor | Daytime radiative cooling | - |
dc.subject.keywordAuthor | Giant core-shell | - |
dc.subject.keywordAuthor | Photoluminescence quantum yield | - |
dc.subject.keywordAuthor | Wavelength conversion | - |
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