Performance Improvement of Quantum Dot Light-Emitting Diodes Using a ZnMgO Electron Transport Layer with a Core/Shell Structure
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Eun, Ye-Bin | - |
dc.contributor.author | Jang, Gyeong-Pil | - |
dc.contributor.author | Yang, Ji-Hun | - |
dc.contributor.author | Kim, Su-Young | - |
dc.contributor.author | Chae, Young-Bin | - |
dc.contributor.author | Ha, Mi-Young | - |
dc.contributor.author | Moon, Dae-Gyu | - |
dc.contributor.author | Kim, Chang-Kyo | - |
dc.date.accessioned | 2023-03-09T07:40:41Z | - |
dc.date.available | 2023-03-09T07:40:41Z | - |
dc.date.issued | 2023-01 | - |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/22156 | - |
dc.description.abstract | Highly efficient and all-solution processed quantum dot light-emitting diodes (QLEDs) with high performance are demonstrated by employing ZnMgO nanoparticles (NPs) with core/shell structure used as an electron transport layer (ETL). Mg-doping in ZnO NPs exhibits a different electronic structure and degree of electron mobility. A key processing step for synthesizing ZnMgO NPs with core/shell structure is adding Mg in the solution in addition to the remaining Mg and Zn ions after the core formation process. This enhanced Mg content in the shell layer compared with that of the core X-ray photoelectron spectroscopy showed a higher number of oxygen vacancies for the ZnMgO core/shell structure, thereby enhancing the charge balance in the emitting layer and improving device efficiency. The QLED incorporating the as synthesized ZnMgO NP core/shell A exhibited a maximum luminance of 55,137.3 cd/m(2), maximum current efficiency of 58.0 cd/A and power efficiency of 23.3 lm/W. The maximum current efficiency and power efficiency of the QLED with ZnMgO NP core/shell A improved by as much as 156.3% and 113.8%, respectively, compared to the QLED with a Zn0.9Mg0.1O NP ETL, thus demonstrating the benefits of ZnMgO NPs with the specified core/shell structure. | - |
dc.publisher | MDPI Open Access Publishing | - |
dc.title | Performance Improvement of Quantum Dot Light-Emitting Diodes Using a ZnMgO Electron Transport Layer with a Core/Shell Structure | - |
dc.type | Article | - |
dc.publisher.location | 스위스 | - |
dc.identifier.doi | 10.3390/ma16020600 | - |
dc.identifier.scopusid | 2-s2.0-85146615100 | - |
dc.identifier.wosid | 000927710600001 | - |
dc.identifier.bibliographicCitation | Materials, v.16, no.2 | - |
dc.citation.title | Materials | - |
dc.citation.volume | 16 | - |
dc.citation.number | 2 | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Chemistry | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Metallurgy & Metallurgical Engineering | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.relation.journalWebOfScienceCategory | Physics, Condensed Matter | - |
dc.subject.keywordAuthor | quantum dot light-emitting diode | - |
dc.subject.keywordAuthor | solution process | - |
dc.subject.keywordAuthor | ZnMgO nanoparticles | - |
dc.subject.keywordAuthor | core | - |
dc.subject.keywordAuthor | shell structure | - |
dc.subject.keywordAuthor | charge balance | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(31538) 22, Soonchunhyang-ro, Asan-si, Chungcheongnam-do, Republic of Korea+82-41-530-1114
COPYRIGHT 2021 by SOONCHUNHYANG 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.