Identifying the cause of thermal droop in GaInN-based LEDs by carrier- and thermo-dynamics analysis
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Han, Dong-Pyo | - |
dc.contributor.author | Lee, Gyeong Won | - |
dc.contributor.author | Min, Sangjin | - |
dc.contributor.author | Shin, Dong-Soo | - |
dc.contributor.author | Shim, Jong-In | - |
dc.contributor.author | Iwaya, Motoaki | - |
dc.contributor.author | Takeuchi, Tetsuya | - |
dc.contributor.author | Kamiyama, Satoshi | - |
dc.contributor.author | Akasaki, Isamu | - |
dc.date.accessioned | 2021-06-22T05:59:00Z | - |
dc.date.available | 2021-06-22T05:59:00Z | - |
dc.date.created | 2021-01-21 | - |
dc.date.issued | 2020-10 | - |
dc.identifier.issn | 2045-2322 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/814 | - |
dc.description.abstract | This study aims to elucidate the carrier dynamics behind thermal droop in GaInN-based blue light-emitting diodes (LEDs) by separating multiple physical factors. To this end, first, we study the differential carrier lifetimes (DCLs) by measuring the impedance of a sample LED under given driving-current conditions over a very wide operating temperature range of 300 K-500 K. The measured DCLs are decoupled into radiative carrier lifetime (tau (R)) and nonradiative carrier lifetime (tau (NR)), via utilization of the experimental DCL data, and then very carefully investigated as a function of driving current over a wide range of operating temperatures. Next, to understand the measurement results of temperature-dependent tau (R) and tau (NR) characteristics, thermodynamic analysis is conducted, which enables to look deeply into the temperature-dependent behavior of the carriers. On the basis of the results, we reveal that thermal droop is originated by the complex dynamics of multiple closely interrelated physical factors instead of a single physical factor. In particular, we discuss the inherent cause of accelerated thermal droop with elevated temperature. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | Nature Publishing Group | - |
dc.title | Identifying the cause of thermal droop in GaInN-based LEDs by carrier- and thermo-dynamics analysis | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Shin, Dong-Soo | - |
dc.identifier.doi | 10.1038/s41598-020-74585-w | - |
dc.identifier.scopusid | 2-s2.0-85092595087 | - |
dc.identifier.wosid | 000582705900047 | - |
dc.identifier.bibliographicCitation | Scientific Reports, v.10, no.1, pp.1 - 11 | - |
dc.relation.isPartOf | Scientific Reports | - |
dc.citation.title | Scientific Reports | - |
dc.citation.volume | 10 | - |
dc.citation.number | 1 | - |
dc.citation.startPage | 1 | - |
dc.citation.endPage | 11 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | Y | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.subject.keywordPlus | INTERNAL QUANTUM EFFICIENCY | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | GAN | - |
dc.subject.keywordPlus | QUALITY | - |
dc.identifier.url | https://www.nature.com/articles/s41598-020-74585-w | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
55 Hanyangdeahak-ro, Sangnok-gu, Ansan, Gyeonggi-do, 15588, Korea+82-31-400-4269 sweetbrain@hanyang.ac.kr
COPYRIGHT © 2021 HANYANG 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.