Molecular Weight-Induced Structural Transition of Liquid-Crystalline Polymer Semiconductor for High-Stability Organic Transistor
DC Field | Value | Language |
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dc.contributor.author | Kim, DH | - |
dc.contributor.author | Lee, J | - |
dc.contributor.author | Park, JI | - |
dc.contributor.author | Chung, JW | - |
dc.contributor.author | Lee, WH | - |
dc.contributor.author | Giri, G | - |
dc.contributor.author | Yoo, B | - |
dc.contributor.author | Koo, B | - |
dc.contributor.author | Kim, JY | - |
dc.contributor.author | Jin, YW | - |
dc.contributor.author | Cho, K | - |
dc.contributor.author | Lee, BL | - |
dc.contributor.author | Lee, S | - |
dc.date.available | 2018-05-08T04:44:57Z | - |
dc.date.created | 2018-04-18 | - |
dc.date.issued | 2011-12 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.uri | http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/6002 | - |
dc.description.abstract | In order to fabricate polymer field-effect transistors (PFETs) with high electrical stability under bias-stress, it is crucial to minimize the density of charge trapping sites caused by the disordered regions. Here we report PFETs with excellent electrical stability comparable to that of single-crystalline organic semiconductors by specifically controlling the molecular weight (MW) of the donor-acceptor type copolymer semiconductors, poly (didodecylquaterthiophene-alt-didodecylbithiazole). We found that MW-induced thermally structural transition from liquid-crystalline to semi-crystalline phases strongly affects the device performance (charge-carrier mobility and electrical bias-stability) as well as the nanostructures such as the molecular ordering and the morphological feature. In particular, for the polymer with a MW of 22 kDa, the transfer curves varied little (Delta V(th) = 3 similar to 4 V) during a period of prolonged bias stress (about 50 000 s) under ambient conditions. This enhancement of the electrical bias-stability can be attributed to highly ordered liquid-crystalline nanostructure of copolymer semiconductors on dielectric surface via the optimization of molecular weights. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.relation.isPartOf | ADVANCED FUNCTIONAL MATERIALS | - |
dc.title | Molecular Weight-Induced Structural Transition of Liquid-Crystalline Polymer Semiconductor for High-Stability Organic Transistor | - |
dc.type | Article | - |
dc.identifier.doi | 10.1002/adfm.201101021 | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.21, pp.4442 - 4447 | - |
dc.description.journalClass | 1 | - |
dc.identifier.wosid | 000297501000006 | - |
dc.identifier.scopusid | 2-s2.0-82555192623 | - |
dc.citation.endPage | 4447 | - |
dc.citation.startPage | 4442 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 21 | - |
dc.contributor.affiliatedAuthor | Kim, DH | - |
dc.type.docType | Article | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
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