DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kim, Hee Su | - |
dc.contributor.author | Song, Eunjoo | - |
dc.contributor.author | Lee, Seon Baek | - |
dc.contributor.author | Kang, In-Nam | - |
dc.contributor.author | Cho, Kilwon | - |
dc.contributor.author | Hwang, Do-Hoon | - |
dc.date.accessioned | 2019-04-07T17:55:22Z | - |
dc.date.available | 2019-04-07T17:55:22Z | - |
dc.date.created | 2018-04-23 | - |
dc.date.issued | 2018-05 | - |
dc.identifier.issn | 1566-1199 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/95908 | - |
dc.description.abstract | Two semiconducting polymers, poly[2,5-bis(5-octylpentadecyl)-3,6-di(thiophen-2-yl)pyrrolo[3,4-c]pyrrole-1,4( 2H,5H)-dione-selenophene] (PDPP-Se) and poly[3,6-bis(4-methylthiophen-2-yl)-2,5-bis(5-octylpentadecyl)pyrrolo[3,4-c] pyrrole-1,4(2H, 5H)-dione-selenophene] (PMDPP-Se) were designed and synthesized. These polymers contain diketopyrrolopyrrole (DPP) and methyl-substituted DPP (MDPP) units as the acceptor building blocks, and selenophene as a counter donor unit. The introduction of methyl groups on the thiophene units flanked by the DPP core substantially affected its optical, electrochemical, and charge-transporting properties. Experimental results revealed that the introduction of electron-donating methyl groups raised the highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) energy levels of PMDPP-Se. Interestingly, the PMDPP-Se showed better co-planarity with the adjacent aromatic groups compared to PDPP-Se. Furthermore, the methyl-substituted polymer showed a transition behavior in its thin film morphology and crystal orientation with an increase in the annealing temperature, which induced an M-shape dependence of the field-effect mobility on the annealing temperature. PMDPP-Se recorded a maximum hole mobility mu(h) = 1.31 cm(2) V-1 s(-1) at optimum phase, which is higher than that of PDPP-Se (mu(h) = 0.86 cm(2) V-1 s(-1)). | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | ORGANIC ELECTRONICS | - |
dc.title | Effect of methyl substitution on the diketopyrrolopyrrole-based semiconducting polymers for organic thin film transistors | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.orgel.2018.01.039 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ORGANIC ELECTRONICS, v.56, pp.129 - 138 | - |
dc.identifier.wosid | 000428026000020 | - |
dc.citation.endPage | 138 | - |
dc.citation.startPage | 129 | - |
dc.citation.title | ORGANIC ELECTRONICS | - |
dc.citation.volume | 56 | - |
dc.contributor.affiliatedAuthor | Song, Eunjoo | - |
dc.contributor.affiliatedAuthor | Lee, Seon Baek | - |
dc.contributor.affiliatedAuthor | Cho, Kilwon | - |
dc.identifier.scopusid | 2-s2.0-85042218873 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | ALKYL SIDE-CHAINS | - |
dc.subject.keywordPlus | CHARGE-CARRIER MOBILITY | - |
dc.subject.keywordPlus | SOLID-STATE ORDER | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | HOLE MOBILITY | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | COPOLYMERS | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordAuthor | Organic semiconductor | - |
dc.subject.keywordAuthor | Organic thin film transistor | - |
dc.subject.keywordAuthor | Polymer | - |
dc.subject.keywordAuthor | Mobility | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.relation.journalWebOfScienceCategory | Physics, Applied | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalResearchArea | Physics | - |
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