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Article: Novel quantum dots: Water-based CdTeSe/ZnS and YAG hybrid phosphor for white light-emitting diodes
Title | Novel quantum dots: Water-based CdTeSe/ZnS and YAG hybrid phosphor for white light-emitting diodes |
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Authors | |
Keywords | Energy dispersive analysis of X-rays (EDS or EDAX) Luminescence Optical materials Chemical synthesis |
Issue Date | 2013 |
Citation | Materials Chemistry and Physics, 2013, v. 139, n. 1, p. 210-214 How to Cite? |
Abstract | Novel 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 Identifier | http://hdl.handle.net/10722/289026 |
ISSN | 2023 Impact Factor: 4.3 2023 SCImago Journal Rankings: 0.769 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Xu, Xianmei | - |
dc.contributor.author | Wang, Yilin | - |
dc.contributor.author | Xia, Wenxiu | - |
dc.contributor.author | Zhou, Liya | - |
dc.contributor.author | Gong, Fuzhong | - |
dc.contributor.author | Wu, Liangliang | - |
dc.date.accessioned | 2020-10-12T08:06:29Z | - |
dc.date.available | 2020-10-12T08:06:29Z | - |
dc.date.issued | 2013 | - |
dc.identifier.citation | Materials Chemistry and Physics, 2013, v. 139, n. 1, p. 210-214 | - |
dc.identifier.issn | 0254-0584 | - |
dc.identifier.uri | http://hdl.handle.net/10722/289026 | - |
dc.description.abstract | Novel 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.language | eng | - |
dc.relation.ispartof | Materials Chemistry and Physics | - |
dc.subject | Energy dispersive analysis of X-rays (EDS or EDAX) | - |
dc.subject | Luminescence | - |
dc.subject | Optical materials | - |
dc.subject | Chemical synthesis | - |
dc.title | Novel quantum dots: Water-based CdTeSe/ZnS and YAG hybrid phosphor for white light-emitting diodes | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.matchemphys.2013.01.023 | - |
dc.identifier.scopus | eid_2-s2.0-84875232157 | - |
dc.identifier.volume | 139 | - |
dc.identifier.issue | 1 | - |
dc.identifier.spage | 210 | - |
dc.identifier.epage | 214 | - |
dc.identifier.isi | WOS:000316519900029 | - |
dc.identifier.issnl | 0254-0584 | - |