Metal-Enhanced Upconversion Luminescence Tunable through Metal Nanoparticle-Nanophosphor Separation
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Soong Ju Oh | - |
dc.date.accessioned | 2021-09-03T09:49:05Z | - |
dc.date.available | 2021-09-03T09:49:05Z | - |
dc.date.created | 2021-06-21 | - |
dc.date.issued | 2012-10 | - |
dc.identifier.issn | 1936-0851 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/84533 | - |
dc.description.abstract | We have demonstrated amplification of luminescence in upconversion nanophosphors (UCNPs) of hexagonal phase NaYF4 (beta-NaYF4) doped with the lanthanide dopants Yb3+, Er3+ or Yb3+, Tm3+ by close proximity to metal nanoparticles (NPs). We present a configuration in which close-packed monolayers of UCNPs are separated from a dense multilayer of metal NPs (Au or Ag) by a nanometer-scale oxide grown by atomic layer deposition. Luminescence enhancements were found to be dependent on the thickness of the oxide spacer layer and the type of metal NP with enhancements of up to 5.2-fold proximal to Au NPs and of up to 45-fold proximal to Ag NPs. Concomitant shortening of the UCNP luminescence decay time and rise time is indicative of the enhancement of the UCNP luminescence induced by resonant plasmonic coupling and nonresonant near-field enhancement from the metal NP layer, respectively. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Metal-Enhanced Upconversion Luminescence Tunable through Metal Nanoparticle-Nanophosphor Separation | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Soong Ju Oh | - |
dc.identifier.doi | 10.1021/nn302466r | - |
dc.identifier.bibliographicCitation | ACS NANO, v.6, no.10, pp.8758 - 8766 | - |
dc.relation.isPartOf | ACS NANO | - |
dc.citation.title | ACS NANO | - |
dc.citation.volume | 6 | - |
dc.citation.number | 10 | - |
dc.citation.startPage | 8758 | - |
dc.citation.endPage | 8766 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | upconversion | - |
dc.subject.keywordAuthor | nanophosphor | - |
dc.subject.keywordAuthor | plasmonically enhanced emission | - |
dc.subject.keywordAuthor | metal-enhanced absorption | - |
dc.subject.keywordAuthor | lanthanide | - |
dc.subject.keywordAuthor | atomic layer deposition | - |
dc.subject.keywordAuthor | nanoimprint lithography | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.