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Article: Novel quantum dots: Water-based CdTeSe/ZnS and YAG hybrid phosphor for white light-emitting diodes

TitleNovel quantum dots: Water-based CdTeSe/ZnS and YAG hybrid phosphor for white light-emitting diodes
Authors
KeywordsEnergy dispersive analysis of X-rays (EDS or EDAX)
Luminescence
Optical materials
Chemical synthesis
Issue Date2013
Citation
Materials Chemistry and Physics, 2013, v. 139, n. 1, p. 210-214 How to Cite?
AbstractNovel water-based core/shell CdTeSe/ZnS quantum dots (QDs) were synthesized by aqueous method. The CdTeSe/ZnS QDs were investigated by high resolution transmission electron microscopy, energy dispersive spectrometry, UV-vis absorption spectra, and photoluminescence spectrum. The as-prepared QDs capped with ZnS shell were spherical in shape with an excellent quantum yield of 16% and emitted bright yellow light. In addition, the CdTeSe/ZnS QDs can be excited by blue or near-UV region, which is an advantage over wavelength converters for white light-emitting diodes (LEDs). White LEDs based on CdTeSe/ZnS QDs, commercially known as Y3Al5O12:Ce3+ (YAG:Ce), and hybrid phosphor of CdTeSe/ZnS QDs and YAG:Ce, were fabricated. The luminescent properties of the resultant white LEDs were evaluated. The higher red-component in the emission spectrum from CdTeSe/ZnS QDs increased the color rendering index (CRI) value of the commercial YAG:Ce-based white LEDs, and the hybrid phosphor-based white LED had CIE-1993 color coordinate, color temperature, and CRI values of (0.3125, 0.2806), 7108 K and 83.3, respectively. © 2013 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/289026
ISSN
2019 Impact Factor: 3.408
2015 SCImago Journal Rankings: 0.733

 

DC FieldValueLanguage
dc.contributor.authorXu, Xianmei-
dc.contributor.authorWang, Yilin-
dc.contributor.authorXia, Wenxiu-
dc.contributor.authorZhou, Liya-
dc.contributor.authorGong, Fuzhong-
dc.contributor.authorWu, Liangliang-
dc.date.accessioned2020-10-12T08:06:29Z-
dc.date.available2020-10-12T08:06:29Z-
dc.date.issued2013-
dc.identifier.citationMaterials Chemistry and Physics, 2013, v. 139, n. 1, p. 210-214-
dc.identifier.issn0254-0584-
dc.identifier.urihttp://hdl.handle.net/10722/289026-
dc.description.abstractNovel water-based core/shell CdTeSe/ZnS quantum dots (QDs) were synthesized by aqueous method. The CdTeSe/ZnS QDs were investigated by high resolution transmission electron microscopy, energy dispersive spectrometry, UV-vis absorption spectra, and photoluminescence spectrum. The as-prepared QDs capped with ZnS shell were spherical in shape with an excellent quantum yield of 16% and emitted bright yellow light. In addition, the CdTeSe/ZnS QDs can be excited by blue or near-UV region, which is an advantage over wavelength converters for white light-emitting diodes (LEDs). White LEDs based on CdTeSe/ZnS QDs, commercially known as Y3Al5O12:Ce3+ (YAG:Ce), and hybrid phosphor of CdTeSe/ZnS QDs and YAG:Ce, were fabricated. The luminescent properties of the resultant white LEDs were evaluated. The higher red-component in the emission spectrum from CdTeSe/ZnS QDs increased the color rendering index (CRI) value of the commercial YAG:Ce-based white LEDs, and the hybrid phosphor-based white LED had CIE-1993 color coordinate, color temperature, and CRI values of (0.3125, 0.2806), 7108 K and 83.3, respectively. © 2013 Elsevier B.V. All rights reserved.-
dc.languageeng-
dc.relation.ispartofMaterials Chemistry and Physics-
dc.subjectEnergy dispersive analysis of X-rays (EDS or EDAX)-
dc.subjectLuminescence-
dc.subjectOptical materials-
dc.subjectChemical synthesis-
dc.titleNovel quantum dots: Water-based CdTeSe/ZnS and YAG hybrid phosphor for white light-emitting diodes-
dc.typeArticle-
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.matchemphys.2013.01.023-
dc.identifier.scopuseid_2-s2.0-84875232157-
dc.identifier.volume139-
dc.identifier.issue1-
dc.identifier.spage210-
dc.identifier.epage214-

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