Universal polymeric bipolar hosts for highly efficient solution-processable blue and green thermally activated delayed fluorescence OLEDs
DC Field | Value | Language |
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dc.contributor.author | Hwang, Jinhyo | - |
dc.contributor.author | Kim, Chae Yeong | - |
dc.contributor.author | Kang, Hyunchul | - |
dc.contributor.author | Jeong, Ji-Eun | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Park, Sungnam | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2021-08-30T05:44:49Z | - |
dc.date.available | 2021-08-30T05:44:49Z | - |
dc.date.created | 2021-06-18 | - |
dc.date.issued | 2020-12-07 | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/50834 | - |
dc.description.abstract | In this study, two polymeric host materials, P(NmCP) and P(mCP), were synthesized, and high-performing sky-blue and green thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs) were achieved. The simple structure polymer host was designed by inserting a pyridine group into the core of P(NmCP) and an electron-donating phenyl group into the core of P(mCP). The two polymeric hosts exhibited high triplet energies (T-1 = 3.04 eV for P(NmCP) and 3.05 eV for P(mCP)), which were sufficiently high to realize blue and green TADF-OLEDs. In brief, solution-processed OLEDs with an emissive layer bearing P(NmCP) as a bipolar electron host exhibited remarkable performance with a maximum current efficiency (CE), power efficiency (PE), and external quantum efficiency (EQE) of 70.36 cd A(-1), 63.15 lm W-1, and 20.07%, respectively, in the green-emitting device. In the blue-emitting device, we obtained a maximum CE, PE, and EQE of 27.13 cd A(-1), 22.30 lm W-1, and 10.70%, respectively. The polymer design with such a high T-1 value is believed to be the cornerstone for implementing high-performance TADF-OLEDs via solution processing in the future. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | HIGH-PERFORMANCE | - |
dc.subject | MAIN-CHAIN | - |
dc.subject | CARBAZOLE | - |
dc.subject | ELECTROPHOSPHORESCENCE | - |
dc.subject | IRIDIUM | - |
dc.subject | DESIGN | - |
dc.title | Universal polymeric bipolar hosts for highly efficient solution-processable blue and green thermally activated delayed fluorescence OLEDs | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.contributor.affiliatedAuthor | Park, Sungnam | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.1039/d0tc04366d | - |
dc.identifier.scopusid | 2-s2.0-85097051470 | - |
dc.identifier.wosid | 000592698700011 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY C, v.8, no.45, pp.16048 - 16056 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.volume | 8 | - |
dc.citation.number | 45 | - |
dc.citation.startPage | 16048 | - |
dc.citation.endPage | 16056 | - |
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 | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | HIGH-PERFORMANCE | - |
dc.subject.keywordPlus | MAIN-CHAIN | - |
dc.subject.keywordPlus | CARBAZOLE | - |
dc.subject.keywordPlus | ELECTROPHOSPHORESCENCE | - |
dc.subject.keywordPlus | IRIDIUM | - |
dc.subject.keywordPlus | DESIGN | - |
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