Pyrimidine-based bipolar host materials for high efficiency solution processed green thermally activated delayed fluorescence OLEDs
DC Field | Value | Language |
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dc.contributor.author | Yoon, Jiwon | - |
dc.contributor.author | Lee, Chiho | - |
dc.contributor.author | Park, Su Hong | - |
dc.contributor.author | Kang, Dong Won | - |
dc.contributor.author | Kim, Hyojin | - |
dc.contributor.author | Jeong, Ji-Eun | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Hong, Chang Seop | - |
dc.contributor.author | Park, Sungnam | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2021-08-31T10:14:31Z | - |
dc.date.available | 2021-08-31T10:14:31Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2020-02-14 | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/57658 | - |
dc.description.abstract | The development of bipolar host materials for solution-processable thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs) is challenging because few host materials for TADF-OLEDs have been reported. Solution-processable bipolar host materials should have good solubility in various organic solvents and should exhibit good thermal stability and film-forming properties. In this study, three bipolar host materials (i.e.Py2Cz, Py2BFCz, and Py2ICz) for solution-processable green-emitting TADF-OLEDs were synthesized by coupling 2,4-diphenylpyrimidine to mCP and modifying the carbazole-donating units in the mCP structure. Thus, the effects of different host structures on the performance of green TADF-OLEDs could be investigated. The three host materials exhibited high thermal stability and fine morphologies in film states. Therefore, all three host materials were utilized to fabricate solution-processed green TADF-OLEDs with a green-emitting dopant. Particularly, the Py2ICz-based device displayed outstanding performance with a maximum external efficiency of 24.1% because Py2ICz has superior charge balance in the emitting layer than the others. These results unambiguously demonstrated that mCP derivatives with a pyrimidine core are suitable bipolar host materials for solution-processed green TADF-OLEDs. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | LIGHT-EMITTING-DIODES | - |
dc.subject | QUANTUM EFFICIENCY | - |
dc.subject | BLUE PHOSPHORESCENT | - |
dc.subject | SILANE-CORE | - |
dc.subject | ROLL-OFF | - |
dc.subject | TRIPHENYLAMINE | - |
dc.subject | LIFETIME | - |
dc.subject | COLOR | - |
dc.title | Pyrimidine-based bipolar host materials for high efficiency solution processed green thermally activated delayed fluorescence OLEDs | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Park, Sungnam | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.1039/c9tc05727g | - |
dc.identifier.scopusid | 2-s2.0-85079574191 | - |
dc.identifier.wosid | 000515394000031 | - |
dc.identifier.bibliographicCitation | JOURNAL OF MATERIALS CHEMISTRY C, v.8, no.6, pp.2196 - 2204 | - |
dc.relation.isPartOf | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.title | JOURNAL OF MATERIALS CHEMISTRY C | - |
dc.citation.volume | 8 | - |
dc.citation.number | 6 | - |
dc.citation.startPage | 2196 | - |
dc.citation.endPage | 2204 | - |
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 | QUANTUM EFFICIENCY | - |
dc.subject.keywordPlus | BLUE PHOSPHORESCENT | - |
dc.subject.keywordPlus | SILANE-CORE | - |
dc.subject.keywordPlus | ROLL-OFF | - |
dc.subject.keywordPlus | TRIPHENYLAMINE | - |
dc.subject.keywordPlus | LIFETIME | - |
dc.subject.keywordPlus | COLOR | - |
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