Fabrication of White Light-Emitting Diodes Based on UV Light-Emitting Diodes with Conjugated Polymers-(CdSe/ZnS) Quantum Dots as Hybrid Phosphors
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Jung, Hyunchul | - |
dc.contributor.author | Chung, Wonkeun | - |
dc.contributor.author | Lee, Chang Hun | - |
dc.contributor.author | Kim, Sung Hyun | - |
dc.date.accessioned | 2021-09-06T18:05:58Z | - |
dc.date.available | 2021-09-06T18:05:58Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2012-07 | - |
dc.identifier.issn | 1533-4880 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/108033 | - |
dc.description.abstract | White light-emitting diodes (LEDs) were fabricated using GaN-based 380-nm UV LEDs precoated with the composite of blue-emitting polymer (poly[(9,9-dihexylfluorenyl-2,7-diyl)-alt-co-(2-methoxy-5-{2-ethylhexyloxy}-1,4-phenylene)]), yellow green-emitting polymer (poly[(9,9-dioctylfluorenyl-2,7-diyl)-co-(1,4-benzo-{2,1',3}-thiadiazole)]), and 605-nm red-emitting quantum dots (QDs). CdSe cores were obtained by solvothermal route using CdO, Se precursors and ZnS shells were synthesized by using diethylzinc, and hexamethyldisilathiane precursors. The optical properties of CdSe/ZnS QDs were characterized by UV-visible and photoluminescence (PL) spectra. The structural data and composition of the QDs were transmission electron microscopy (TEM), and EDX technique. The quantum yield and size of the Q Ds were 58.7% and about 6.7 nm, respectively. Three-band white light was generated by hybridizing blue (430 nm), green (535 nm), and red (605 nm) emission. The color-rendering index (CAI) of the device was extremely improved by introducing the QDs. The CIE-1931 chromaticity coordinate, color temperature, and CRI of a white LED at 20 mA were (0.379, 0.368), 3969 K, and 90, respectively. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | AMER SCIENTIFIC PUBLISHERS | - |
dc.subject | PHOTOLUMINESCENCE | - |
dc.subject | EMISSION | - |
dc.title | Fabrication of White Light-Emitting Diodes Based on UV Light-Emitting Diodes with Conjugated Polymers-(CdSe/ZnS) Quantum Dots as Hybrid Phosphors | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kim, Sung Hyun | - |
dc.identifier.doi | 10.1166/jnn.2012.6288 | - |
dc.identifier.scopusid | 2-s2.0-84865116651 | - |
dc.identifier.wosid | 000307604700049 | - |
dc.identifier.bibliographicCitation | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, v.12, no.7, pp.5407 - 5411 | - |
dc.relation.isPartOf | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.title | JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | - |
dc.citation.volume | 12 | - |
dc.citation.number | 7 | - |
dc.citation.startPage | 5407 | - |
dc.citation.endPage | 5411 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordPlus | PHOTOLUMINESCENCE | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordAuthor | White Light-Emitting Diode | - |
dc.subject.keywordAuthor | CdSe/ZnS Quantum Dot | - |
dc.subject.keywordAuthor | Conjugated Polymer | - |
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.