Novel carbazole-acridine-based hole transport polymer for low turn-on voltage of green quantum dot light-emitting diodes
DC Field | Value | Language |
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dc.contributor.author | Kim, Chai Won | - |
dc.contributor.author | Lee, Ji Hye | - |
dc.contributor.author | Cho, Seunguk | - |
dc.contributor.author | Kim, Hyung Jong | - |
dc.contributor.author | Hwang, Jinhyo | - |
dc.contributor.author | Kim, Yong Woo | - |
dc.contributor.author | Choi, Dae Hyuk | - |
dc.contributor.author | Cho, Min Ju | - |
dc.contributor.author | Lee, Kwangyeol | - |
dc.contributor.author | Choi, Dong Hoon | - |
dc.date.accessioned | 2022-02-25T00:40:42Z | - |
dc.date.available | 2022-02-25T00:40:42Z | - |
dc.date.created | 2022-02-09 | - |
dc.date.issued | 2021-08-28 | - |
dc.identifier.issn | 1759-9954 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/136800 | - |
dc.description.abstract | Herein, a novel hole transport polymer, P-CzAc, for solution-processed green quantum dot light-emitting diodes (QD-LEDs) was synthesized. P-CzAc consists of a polystyrene backbone and 10-(9H-carbazol-3-yl)-9,9-dimethyl-9,10-dihydroacridine as side-chain pendants. The design strategy aims to improve the hole transportability and achieve the low-lying highest occupied molecular orbital (HOMO) level for P-CzAc for reducing the charge injection barrier from the hole injection layer to the hole transport layer. P-CzAc showed good solubility in tetrahydrofuran, methylene chloride, and aromatic solvents, but high solvent tolerance for hexane and octane, similar to poly(N-vinylcarbazole) (PVK). Compared to PVK (HOMO = -5.58 eV), P-CzAc exhibited a relatively high-lying HOMO level of -5.33 eV. In particular, the hole mobility (mu(h)) of P-CzAc was estimated to be 2.24 x 10(-6) cm(2) V-1 s(-1), which is much higher than that of PVK (mu(h) = 4.11 x 10(-9) cm(2) V-1 s(-1)). In solution-processed green QD-LEDs, the P-CzAc-based device exhibited a relatively low turn-on voltage (V-on) of 2.8 V and a high maximum external quantum efficiency (EQE) of 11.6%. In comparison with a PVK-based device (V-on = 4.4 V; EQE = 8.6%), the P-CzAc-based device is more efficient owing to the significant improvement in hole injection. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.publisher | ROYAL SOC CHEMISTRY | - |
dc.subject | HIGH-EFFICIENCY | - |
dc.subject | HIGHLY EFFICIENT | - |
dc.subject | AUGER RECOMBINATION | - |
dc.subject | PERFORMANCE | - |
dc.subject | LAYER | - |
dc.subject | STRATEGY | - |
dc.subject | BALANCE | - |
dc.subject | BRIGHT | - |
dc.title | Novel carbazole-acridine-based hole transport polymer for low turn-on voltage of green quantum dot light-emitting diodes | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Kwangyeol | - |
dc.contributor.affiliatedAuthor | Choi, Dong Hoon | - |
dc.identifier.doi | 10.1039/d1py00497b | - |
dc.identifier.scopusid | 2-s2.0-85113213872 | - |
dc.identifier.wosid | 000679993600001 | - |
dc.identifier.bibliographicCitation | POLYMER CHEMISTRY, v.12, no.32, pp.4714 - 4721 | - |
dc.relation.isPartOf | POLYMER CHEMISTRY | - |
dc.citation.title | POLYMER CHEMISTRY | - |
dc.citation.volume | 12 | - |
dc.citation.number | 32 | - |
dc.citation.startPage | 4714 | - |
dc.citation.endPage | 4721 | - |
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 | AUGER RECOMBINATION | - |
dc.subject.keywordPlus | BALANCE | - |
dc.subject.keywordPlus | BRIGHT | - |
dc.subject.keywordPlus | HIGH-EFFICIENCY | - |
dc.subject.keywordPlus | HIGHLY EFFICIENT | - |
dc.subject.keywordPlus | LAYER | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | STRATEGY | - |
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