Gate-Bias Stability Behavior Tailored by Dielectric Polymer Stereostructure in Organic Transistors
DC Field | Value | Language |
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dc.contributor.author | Lee, Junghwi | - |
dc.contributor.author | Min, Honggi | - |
dc.contributor.author | Park, Namwoo | - |
dc.contributor.author | Jeong, Heejeong | - |
dc.contributor.author | Han, Singu | - |
dc.contributor.author | Kim, Se Hyun | - |
dc.contributor.author | Lee, Hwa sung | - |
dc.date.accessioned | 2021-06-22T18:42:59Z | - |
dc.date.available | 2021-06-22T18:42:59Z | - |
dc.date.created | 2021-02-18 | - |
dc.date.issued | 2015-10 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.uri | https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/16513 | - |
dc.description.abstract | Understanding charge trapping in a polymer dielectric is critical to the design of high-performance organic field-effect transistors (OFETs). We investigated the OFET stability as a function of the dielectric polymer stereostructure under a gate bias stress and during long-term operation. To this end, iso-, syn-, and atactic poly(methyl methacrylate) (PMMA) polymers with identical molecular weights and polydispersity indices were selected. The PMMA stereostructure was found to significantly influence the charge trapping behavior and trap formation in the polymer dielectrics. This influence was especially strong in the bulk region rather than in the surface region. The regular configurational arrangements (isotactic > syntactic > atactic) of the pendant groups on the PMMA backbone chain facilitated closer packing between the polymer interchains and led to a higher crystallinity of the polymer dielectric, which caused a reduction in the free volumes that act as sites for charge trapping and air molecule absorption. The PMMA dielectrics with regular stereostructures (iso- and syn-stereoisomers) exhibited more stable OFET operation under bias stress compared to devices prepared using irregular a-PMMA in both vacuum and air. © 2015 American Chemical Society. | - |
dc.language | 영어 | - |
dc.language.iso | en | - |
dc.publisher | American Chemical Society | - |
dc.title | Gate-Bias Stability Behavior Tailored by Dielectric Polymer Stereostructure in Organic Transistors | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Lee, Hwa sung | - |
dc.identifier.doi | https://doi.org/10.1021/acsami.5b08414 | - |
dc.identifier.scopusid | 2-s2.0-84947703323 | - |
dc.identifier.wosid | 000365148600011 | - |
dc.identifier.bibliographicCitation | ACS Applied Materials and Interfaces, v.7, no.45, pp.25045 - 25052 | - |
dc.relation.isPartOf | ACS Applied Materials and Interfaces | - |
dc.citation.title | ACS Applied Materials and Interfaces | - |
dc.citation.volume | 7 | - |
dc.citation.number | 45 | - |
dc.citation.startPage | 25045 | - |
dc.citation.endPage | 25052 | - |
dc.type.rims | ART | - |
dc.description.journalClass | 1 | - |
dc.description.isOpenAccess | N | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.relation.journalResearchArea | Materials Science | - |
dc.relation.journalWebOfScienceCategory | Nanoscience & Nanotechnology | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary | - |
dc.subject.keywordPlus | SELF-ASSEMBLED MONOLAYERS | - |
dc.subject.keywordPlus | THIN-FILM TRANSISTORS | - |
dc.subject.keywordPlus | MOLECULAR-WEIGHT | - |
dc.subject.keywordPlus | POLY(METHYL METHACRYLATE) | - |
dc.subject.keywordPlus | SURFACE VISCOELASTICITY | - |
dc.subject.keywordPlus | GLASS-TRANSITION | - |
dc.subject.keywordPlus | CROSS-LINKING | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | STRESS | - |
dc.subject.keywordPlus | TACTICITY | - |
dc.subject.keywordAuthor | configurational arrangement | - |
dc.subject.keywordAuthor | operational stability | - |
dc.subject.keywordAuthor | organic field-effect transistor | - |
dc.subject.keywordAuthor | polymer dielectric | - |
dc.subject.keywordAuthor | polymer stereostructure | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.5b08414 | - |
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