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DC Field | Value | Language |
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dc.citation.number | 42 | - |
dc.citation.startPage | 2101981 | - |
dc.citation.title | ADVANCED FUNCTIONAL MATERIALS | - |
dc.citation.volume | 31 | - |
dc.contributor.author | Oh, Byeong M. | - |
dc.contributor.author | Park, Sung-Ha | - |
dc.contributor.author | Lee, Jeong Hyeon | - |
dc.contributor.author | Kim, Jin Chul | - |
dc.contributor.author | Lee, Jong Bum | - |
dc.contributor.author | Eun, Hyeong Ju | - |
dc.contributor.author | Lee, Yun-Sang | - |
dc.contributor.author | Seo, Bo Eun | - |
dc.contributor.author | Yoon, Woojin | - |
dc.contributor.author | Kwon, Ji Eon | - |
dc.contributor.author | Yun, Hoseop | - |
dc.contributor.author | Kwak, Sang Kyu | - |
dc.contributor.author | Kwon, O-Pil | - |
dc.contributor.author | Kim, Jong H. | - |
dc.date.accessioned | 2023-12-21T15:12:35Z | - |
dc.date.available | 2023-12-21T15:12:35Z | - |
dc.date.created | 2021-08-20 | - |
dc.date.issued | 2021-10 | - |
dc.description.abstract | Herein, a strategic approach to enhance the sensitivity of ammonia gas detection using organic semiconductors by boosting the efficiency of ammonia gas-induced stable radical anion formation (SRAF) is reported. This is achieved through rational molecular design and engineering of field-effect transistors (FETs). New rylene diimide derivatives are designed and used to prepare molecular templates for efficient SRAF in thin films, and they are applied as gas-adsorbing active layers in FETs. Substituting linear-shaped perfluoroalkyl (PF) groups to pi-electron-deficient naphthalene diimide (NDI) backbone enhances the ammonia gas detection limit to 200 ppb, attributed to the strong electron-withdrawing capability and low steric hindrance of PF groups. Replacing the core backbone (NDI) with perylene diimide (PDI) while retaining the PF group further enhances gas-responsivity up to 18.17 (1700% increase in current) due to the enlarged pi-conjugated bridge area. Computational characterization further supports that high electron affinity of the PDI-PF molecules and a larger gas-adsorption area in the PDI core result in the exceptional ammonia gas sensitivity. In addition, beneficial molecular orientation and nanopore formation of PDI-PF facilitate gas adsorption, resulting in remarkably enhanced gas-responsivity. The results indicate that molecular engineering for high-efficiency SRAF suggests a new strategy for developing high-sensitivity ammonia sensing platforms. | - |
dc.identifier.bibliographicCitation | ADVANCED FUNCTIONAL MATERIALS, v.31, no.42, pp.2101981 | - |
dc.identifier.doi | 10.1002/adfm.202101981 | - |
dc.identifier.issn | 1616-301X | - |
dc.identifier.scopusid | 2-s2.0-85111298777 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/53790 | - |
dc.identifier.url | https://onlinelibrary.wiley.com/doi/10.1002/adfm.202101981 | - |
dc.identifier.wosid | 000678822500001 | - |
dc.language | 영어 | - |
dc.publisher | WILEY-V C H VERLAG GMBH | - |
dc.title | Strategic Approach for Enhancing Sensitivity of Ammonia Gas Detection: Molecular Design Rule and Morphology Optimization for Stable Radical Anion Formation of Rylene Diimide Semiconductors | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Multidisciplinary; Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science; Physics | - |
dc.type.docType | Article; Early Access | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordAuthor | electron-withdrawing groups | - |
dc.subject.keywordAuthor | gas sensors | - |
dc.subject.keywordAuthor | gas responsivity | - |
dc.subject.keywordAuthor | organic field-effect transistors | - |
dc.subject.keywordAuthor | stable radical anion formation | - |
dc.subject.keywordPlus | FIELD-EFFECT TRANSISTORS | - |
dc.subject.keywordPlus | ORGANIC TRANSISTORS | - |
dc.subject.keywordPlus | N-TYPE | - |
dc.subject.keywordPlus | SENSORS | - |
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