The relationship between the device performance and hole mobility of host materials in mixed host system for deep blue phosphorescent organic light emitting devices
DC Field | Value | Language |
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dc.contributor.author | Wee, Kyung-Ryang | - |
dc.contributor.author | Kim, Ae-Li | - |
dc.contributor.author | Jeong, So-Yeong | - |
dc.contributor.author | Kwon, Soonnam | - |
dc.contributor.author | Kang, Sang Ook | - |
dc.date.accessioned | 2021-09-07T05:51:09Z | - |
dc.date.available | 2021-09-07T05:51:09Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2011-12 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/111079 | - |
dc.description.abstract | We report on the systematic investigation of the relationship between hole mobility of host materials and device performance to maximize the power efficiency. Three different materials with different hole mobility were used as host materials of iridium(III)[bis(4,6-difluorophenyl)pyridinato-N,C-2']tetrakis(1-pyrazolyl)borate (FIr6) based deep blue phosphorescent organic light-emitting device (PHOELD). Host material, tris(4-(N-carbazolyl)phenyl)methylsilane (MCBP), with higher hole mobility (1.1 x 10(-3) cm(2) V-1 s(-1)), can accommodate more electron current carried by an n-type host, bis(4-(4,5-diphenyl-4H-1,2,4-triazol-3-yl)phenyl)dimethylsilane (SiTAZ), than the other p-type hosts with lower hole mobility, maintaining the charge balance between hole and electron current. As a result, the optimized device shows high external quantum efficiency (EQE) of 19.0%, high power efficiency of 23.5 lm/W, low efficiency roll off, and deep blue color coordinates of (0.15, 0.23). (C) 2011 Elsevier B. V. All rights reserved. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject | ELECTRON-TRANSPORT MATERIALS | - |
dc.subject | WIDE-ENERGY-GAP | - |
dc.subject | HIGH-EFFICIENCY | - |
dc.subject | ELECTROPHOSPHORESCENT DEVICES | - |
dc.subject | BIPOLAR HOST | - |
dc.subject | OLEDS | - |
dc.subject | COMPLEXES | - |
dc.subject | MOLECULE | - |
dc.subject | DIODES | - |
dc.subject | GREEN | - |
dc.title | The relationship between the device performance and hole mobility of host materials in mixed host system for deep blue phosphorescent organic light emitting devices | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Kwon, Soonnam | - |
dc.contributor.affiliatedAuthor | Kang, Sang Ook | - |
dc.identifier.doi | 10.1016/j.orgel.2011.08.021 | - |
dc.identifier.scopusid | 2-s2.0-80053358396 | - |
dc.identifier.wosid | 000297259700001 | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.12, no.12, pp.1973 - 1979 | - |
dc.relation.isPartOf | ORGANIC ELECTRONICS | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 12 | - |
dc.citation.number | 12 | - |
dc.citation.startPage | 1973 | - |
dc.citation.endPage | 1979 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.subject.keywordPlus | ELECTRON-TRANSPORT MATERIALS | - |
dc.subject.keywordPlus | WIDE-ENERGY-GAP | - |
dc.subject.keywordPlus | HIGH-EFFICIENCY | - |
dc.subject.keywordPlus | ELECTROPHOSPHORESCENT DEVICES | - |
dc.subject.keywordPlus | BIPOLAR HOST | - |
dc.subject.keywordPlus | OLEDS | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | MOLECULE | - |
dc.subject.keywordPlus | DIODES | - |
dc.subject.keywordPlus | GREEN | - |
dc.subject.keywordAuthor | p-Type host | - |
dc.subject.keywordAuthor | Hole mobility | - |
dc.subject.keywordAuthor | Mixed-host system | - |
dc.subject.keywordAuthor | Deep blue PHOLEDs | - |
dc.subject.keywordAuthor | Power efficiency | - |
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