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DC Field | Value | Language |
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dc.citation.endPage | 40357 | - |
dc.citation.number | 43 | - |
dc.citation.startPage | 40347 | - |
dc.citation.title | ACS APPLIED MATERIALS & INTERFACES | - |
dc.citation.volume | 11 | - |
dc.contributor.author | Cho, Yongjoon | - |
dc.contributor.author | Lee, Hae Rang | - |
dc.contributor.author | Jeong, Ayoung | - |
dc.contributor.author | Lee, Jungho | - |
dc.contributor.author | Lee, Sang Myeon | - |
dc.contributor.author | Joo, Se Hun | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Oh, Joon Hak | - |
dc.contributor.author | Yang, Changduk | - |
dc.date.accessioned | 2023-12-21T18:38:12Z | - |
dc.date.available | 2023-12-21T18:38:12Z | - |
dc.date.created | 2019-11-20 | - |
dc.date.issued | 2019-10 | - |
dc.description.abstract | A family of copolymers (P(NDIOD-T2Fx)) based on naphthalenediimide (NDI) and 2,2′-bithiophene (T2) units with different amounts of 3,3′-difluoro-2,2′-bithiophene (T2F) decoration were synthesized, characterized, and used in n-type organic field-effect transistors (OFETs). With increasing T2F content in the backbone, we observe increased melting and crystallization transitions, blue-shifted absorptions, and deeper-lying highest occupied molecular orbital (HOMO)/lowest unoccupied molecular orbital (LUMO) levels, together with improved hydrophobicity. The highest electron mobility of 4.48 × 10-1 cm2 V-1 s-1 was obtained for P(NDIOD-T2F0) without a T2F unit, which is attributed to the larger domain grains and crystallites, as well as a more tightly packed and oriented crystalline structure, as evidenced from the morphological study. In contrast, P(NDIOD-T2F100) with the highest T2F content has superior air stability, showing greater than 25% electron mobility retention after 30 days in wet conditions of 100% relative humidity without encapsulation. Even P(NDIOD-T2F100) is able to operate normally after 30 min of immersion in water, which is due to the synergistic contributions from the deep HOMO/LUMO levels and improved hydrophobicity. This study advances our fundamental understanding of how the morphology/crystallinity, device performance, and device stability of n-type copolymers are tuned by incorporating different concentrations of T2F in the backbone, shedding light on an important modification for air- and water-stable n-type materials for future OFET applications. | - |
dc.identifier.bibliographicCitation | ACS APPLIED MATERIALS & INTERFACES, v.11, no.43, pp.40347 - 40357 | - |
dc.identifier.doi | 10.1021/acsami.9b14942 | - |
dc.identifier.issn | 1944-8244 | - |
dc.identifier.scopusid | 2-s2.0-85073825994 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/30497 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acsami.9b14942 | - |
dc.identifier.wosid | 000493869700096 | - |
dc.language | 영어 | - |
dc.publisher | American Chemical Society | - |
dc.title | Understanding of Fluorination Dependence on Electron Mobility and Stability of Naphthalenediimide-Based Polymer Transistors in Environment with 100% Relative Humidity | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | air stability | - |
dc.subject.keywordAuthor | fluorine atom | - |
dc.subject.keywordAuthor | n-type conjugated polymers | - |
dc.subject.keywordAuthor | naphthalenediimide | - |
dc.subject.keywordAuthor | organic field-effect transistors | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | N-TYPE SEMICONDUCTORS | - |
dc.subject.keywordPlus | CONJUGATED POLYMERS | - |
dc.subject.keywordPlus | ORGANIC SEMICONDUCTORS | - |
dc.subject.keywordPlus | CHARGE-TRANSPORT | - |
dc.subject.keywordPlus | SOLAR-CELLS | - |
dc.subject.keywordPlus | PERFORMANCE | - |
dc.subject.keywordPlus | CHANNEL | - |
dc.subject.keywordPlus | MORPHOLOGY | - |
dc.subject.keywordPlus | COPOLYMERS | - |
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