New hole transport styrene polymers bearing highly pi-extended conjugated side-chain moieties for high-performance solution-processable thermally activated delayed fluorescence OLEDs
DC Field | Value | Language |
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dc.contributor.author | Lee, Ji Hye | - |
dc.contributor.author | Hwang, Jinhyo | - |
dc.contributor.author | Kim, Chai Won | - |
dc.contributor.author | Harit, Amit Kumar | - |
dc.contributor.author | Woo, Han Young | - |
dc.contributor.author | Kim, Hyung Jong | - |
dc.contributor.author | Kim, Yong Woo | - |
dc.contributor.author | Choi, Dae Hyuk | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2021-08-30T02:14:50Z | - |
dc.date.available | 2021-08-30T02:14:50Z | - |
dc.date.created | 2021-06-19 | - |
dc.date.issued | 2021-03-21 | - |
dc.identifier.issn | 1759-9954 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/49347 | - |
dc.description.abstract | Two new hole transport styrene polymers, 2DMFCz and 2DBFCz, were successfully synthesized via radical polymerization. The design concept aims to investigate the hole-transporting ability and energy-level tunability by introducing bis(9,9-dimethyl-9H-fluoren-2-yl)aminocarbazole and bis(dibenzo[b,d]furan-2-yl)aminocarbazole as side-chain pendants. They were found to show good solubility in chlorobenzene but poor solubility in toluene, similar to poly(9-vinylcarbazole) (PVK). The highest occupied molecular orbital levels of 2DMFCz and 2DBFCz were determined to be -5.23 eV and -5.31 eV, respectively, while hole mobilities were estimated to be 1.65 x 10(-7) cm(2) V-1 s(-1) and 1.48 x 10(-8) cm(2) V-1 s(-1) measured by the space-charge limited-current method. Subsequently, in solution-processed green thermally activated delayed fluorescence organic light-emitting diodes (TADF-OLEDs), the 2DMFCz- and 2DBFCz-based devices exhibited a relatively low turn-on voltage of 2.7 V and higher maximum external quantum efficiencies of 23.84% and 21.11%, respectively. These values were superior to those of a PVK-based device. The polymer hole-transport materials presented in this study are promising materials that can play a significant role in improving the performance of TADF-OLEDs fabricated through a solution process in the future. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.title | New hole transport styrene polymers bearing highly pi-extended conjugated side-chain moieties for high-performance solution-processable thermally activated delayed fluorescence OLEDs | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Woo, Han Young | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.1039/d1py00026h | - |
dc.identifier.scopusid | 2-s2.0-85103139273 | - |
dc.identifier.wosid | 000631565500010 | - |
dc.identifier.bibliographicCitation | POLYMER CHEMISTRY, v.12, no.11, pp.1692 - 1699 | - |
dc.relation.isPartOf | POLYMER CHEMISTRY | - |
dc.citation.title | POLYMER CHEMISTRY | - |
dc.citation.volume | 12 | - |
dc.citation.number | 11 | - |
dc.citation.startPage | 1692 | - |
dc.citation.endPage | 1699 | - |
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 | - |
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