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DC Field | Value | Language |
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dc.citation.endPage | 11914 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 11907 | - |
dc.citation.title | JOURNAL OF PHYSICAL CHEMISTRY C | - |
dc.citation.volume | 121 | - |
dc.contributor.author | Jhun, Byung Hak | - |
dc.contributor.author | Yi, Seung Yeon | - |
dc.contributor.author | Jeong, Donghyun | - |
dc.contributor.author | Cho, Jaeheung | - |
dc.contributor.author | Park, Soo Young | - |
dc.contributor.author | You, Youngmin | - |
dc.date.accessioned | 2023-12-21T22:09:24Z | - |
dc.date.available | 2023-12-21T22:09:24Z | - |
dc.date.created | 2020-09-03 | - |
dc.date.issued | 2017-06 | - |
dc.description.abstract | Although n-pi* molecules can serve as electroluminescent materials because of the harvesting of singlet and triplet excitons through El-Sayed-rule-allowed reverse intersystem crossing, the weak fluorescence emissions of such molecules have prevented applications into devices. We have discovered a 1 order of magnitude enhancement of the fluorescence of a prototypical n-pi* fluorophore, 7-phenylcoumarin (PC), upon aggregation. We performed a mechanistic study consisting of structural, photophysical, and quantum chemical investigations, and found that the aggregation positioned the fluorescent electronic state below the nonemissive tripletn-pi* transition state. Our studies, for the first time, demonstrate intramolecular geometry and intermolecular arrangements in the solid state to be significant factors in the photoluminescence quantum yields of n-pi* fluorophores. | - |
dc.identifier.bibliographicCitation | JOURNAL OF PHYSICAL CHEMISTRY C, v.121, no.21, pp.11907 - 11914 | - |
dc.identifier.doi | 10.1021/acs.jpcc.7b02797 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.scopusid | 2-s2.0-85020658179 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/48108 | - |
dc.identifier.url | https://pubs.acs.org/doi/10.1021/acs.jpcc.7b02797 | - |
dc.identifier.wosid | 000402775200101 | - |
dc.language | 영어 | - |
dc.publisher | AMER CHEMICAL SOC | - |
dc.title | Aggregation of an n-pi* Molecule Induces Fluorescence Turn-on | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Chemistry, Physical; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary | - |
dc.relation.journalResearchArea | Chemistry; Science & Technology - Other Topics; Materials Science | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | ACTIVATED DELAYED FLUORESCENCE | - |
dc.subject.keywordPlus | LIGHT-EMITTING-DIODES | - |
dc.subject.keywordPlus | INTRAMOLECULAR CHARGE-TRANSFER | - |
dc.subject.keywordPlus | TRIPLET-TRIPLET ANNIHILATION | - |
dc.subject.keywordPlus | SOLID-STATE EMISSION | - |
dc.subject.keywordPlus | EXCITED-STATES | - |
dc.subject.keywordPlus | EFFICIENCY | - |
dc.subject.keywordPlus | MECHANISM | - |
dc.subject.keywordPlus | DESIGN | - |
dc.subject.keywordPlus | PHOSPHORESCENCE | - |
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