Deep-Red Light-Emitting Phosphorescent Dendrimer Encapsulated Tris-[2-benzo[b]thiophen-2-yl-pyridyl] Iridium (III) Core for Light-Emitting Device Applications
DC Field | Value | Language |
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dc.contributor.author | Jung, Kyung Moon | - |
dc.contributor.author | Kim, Kyung Hwan | - |
dc.contributor.author | Jin, Jung-Il | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2021-09-09T02:41:07Z | - |
dc.date.available | 2021-09-09T02:41:07Z | - |
dc.date.created | 2021-06-10 | - |
dc.date.issued | 2008-11-15 | - |
dc.identifier.issn | 0887-624X | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/122400 | - |
dc.description.abstract | New deep-red light-emitting phosphorescent dendrimers with hole-transporting carbazole dendrons were synthesized by reacting tris(2-benzo[b]thiophen-2-yl-pyridyl) iridium (III) complex with carbazolyl dendrons by DCC-catalyzed esterification. The resulting first-, second-, and third-generation dendrimers were found to be highly efficient as solution-processable emitting materials and for use in host-free electrophosphorescent light-emitting diodes. We fabricated a host-free dendrimer EL device with configuration ITO/PEDOT:PSS (40 nm)/dendrimer (55 nm)/BCP (10 nm)/Alq(3) (40 nm)/LiF (1 nm)/Al (100 nm) and characterized the device performance. The multilayered devices showed luminance of 561 cd/m(2) at 383.4 mA/cm(2) (12 V) for 15, 1302 cd/m(2) at 321.3 mA/cm(2) (14 V) for 16, and 422 cd/m(2) at 94.4 m.A/cm(2) (18 V) for 17. The third-generation dendrimer, 17 (n(ext) = 6.12% at 7.5 V), showed the highest external quantum efficiency (EQE) with an increase in the density of the light-harvesting carbazole dendron. Three dendrimers exhibited considerably pure deep-red emission with CIE 1931 (Commission International de L'Eclairage) chromaticity coordinates of x = 0.70, y = 0.30. The CIE coordinates remained very stable with the current density. The integration of rigid hole-transporting dendrons and phosphorescent complexes provides a new route to design highly efficient solution-processable materials for dendrimer light-emitting diode (DLED) applications. (C) 2008 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem 46: 7517-7533, 2008 | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | WILEY | - |
dc.subject | LUMINESCENCE PROPERTIES | - |
dc.subject | PPV DERIVATIVES | - |
dc.subject | INTERCHAIN INTERACTIONS | - |
dc.subject | ENERGY-TRANSFER | - |
dc.subject | EFFICIENT | - |
dc.subject | COMPLEXES | - |
dc.subject | ELECTROLUMINESCENCE | - |
dc.subject | COPOLYMERS | - |
dc.subject | EMISSION | - |
dc.subject | POLYMERS | - |
dc.title | Deep-Red Light-Emitting Phosphorescent Dendrimer Encapsulated Tris-[2-benzo[b]thiophen-2-yl-pyridyl] Iridium (III) Core for Light-Emitting Device Applications | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.1002/pola.23058 | - |
dc.identifier.scopusid | 2-s2.0-56349147049 | - |
dc.identifier.wosid | 000260964400022 | - |
dc.identifier.bibliographicCitation | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY, v.46, no.22, pp.7517 - 7533 | - |
dc.relation.isPartOf | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | - |
dc.citation.title | JOURNAL OF POLYMER SCIENCE PART A-POLYMER CHEMISTRY | - |
dc.citation.volume | 46 | - |
dc.citation.number | 22 | - |
dc.citation.startPage | 7517 | - |
dc.citation.endPage | 7533 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Polymer Science | - |
dc.relation.journalWebOfScienceCategory | Polymer Science | - |
dc.subject.keywordPlus | LUMINESCENCE PROPERTIES | - |
dc.subject.keywordPlus | PPV DERIVATIVES | - |
dc.subject.keywordPlus | INTERCHAIN INTERACTIONS | - |
dc.subject.keywordPlus | ENERGY-TRANSFER | - |
dc.subject.keywordPlus | EFFICIENT | - |
dc.subject.keywordPlus | COMPLEXES | - |
dc.subject.keywordPlus | ELECTROLUMINESCENCE | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | EMISSION | - |
dc.subject.keywordPlus | POLYMERS | - |
dc.subject.keywordAuthor | absorption | - |
dc.subject.keywordAuthor | carrier mobility | - |
dc.subject.keywordAuthor | dendrimer | - |
dc.subject.keywordAuthor | electroluminescence | - |
dc.subject.keywordAuthor | fluorescence | - |
dc.subject.keywordAuthor | light-emitting diodes | - |
dc.subject.keywordAuthor | luminescence | - |
dc.subject.keywordAuthor | phosphorescence | - |
dc.subject.keywordAuthor | photoluminescence | - |
dc.subject.keywordAuthor | triplet energy transfer | - |
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