Full metadata record
DC Field | Value | Language |
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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.available | 2017-08-10T08:11:51Z | - |
dc.date.created | 2017-08-09 | - |
dc.date.issued | 2017-06-01 | - |
dc.identifier.issn | 1932-7447 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/4160 | - |
dc.description.abstract | Although n-π∗ 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-π∗ 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 triplet n-π∗ 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-π∗ fluorophores. © 2017 American Chemical Society. | - |
dc.publisher | American Chemical Society | - |
dc.title | Aggregation of an n-pi* Molecule Induces Fluorescence Turn-on | - |
dc.type | Article | - |
dc.identifier.doi | 10.1021/acs.jpcc.7b02797 | - |
dc.identifier.scopusid | 2-s2.0-85020658179 | - |
dc.identifier.bibliographicCitation | Journal of Physical Chemistry C, v.121, no.21, pp.11907 - 11914 | - |
dc.subject.keywordPlus | Activated Delayed Fluorescence | - |
dc.subject.keywordPlus | Agglomeration | - |
dc.subject.keywordPlus | Aqueous Solution | - |
dc.subject.keywordPlus | Efficiency | - |
dc.subject.keywordPlus | Electroluminescencefluorescence | - |
dc.subject.keywordPlus | Electroluminescent Materials | - |
dc.subject.keywordPlus | Enhanced Emission | - |
dc.subject.keywordPlus | Excited States | - |
dc.subject.keywordPlus | Fluorescence Emission | - |
dc.subject.keywordPlus | Fluorophores | - |
dc.subject.keywordPlus | Inter System Crossings | - |
dc.subject.keywordPlus | Intermolecular Arrangements | - |
dc.subject.keywordPlus | Intramolecular Charge Transfer | - |
dc.subject.keywordPlus | Light Emitting Diodes (LED) | - |
dc.subject.keywordPlus | Magnitude Enhancement | - |
dc.subject.keywordPlus | Mechanism | - |
dc.subject.keywordPlus | Molecules | - |
dc.subject.keywordPlus | Photoluminescence Quantum Yields | - |
dc.subject.keywordPlus | Quantum Chemical Investigation | - |
dc.subject.keywordPlus | Quantum Chemistry | - |
dc.subject.keywordPlus | Quantum Theory | - |
dc.subject.keywordPlus | Singlet and Triplet Excitons | - |
dc.subject.keywordPlus | Solid State Emission | - |
dc.citation.endPage | 11914 | - |
dc.citation.number | 21 | - |
dc.citation.startPage | 11907 | - |
dc.citation.title | Journal of Physical Chemistry C | - |
dc.citation.volume | 121 | - |
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