Full metadata record
DC Field | Value | Language |
---|---|---|
dc.contributor.author | 유영민 | * |
dc.date.accessioned | 2017-07-04T01:07:30Z | - |
dc.date.available | 2017-07-04T01:07:30Z | - |
dc.date.issued | 2017 | * |
dc.identifier.issn | 1932-7447 | * |
dc.identifier.other | OAK-20830 | * |
dc.identifier.uri | https://dspace.ewha.ac.kr/handle/2015.oak/235397 | - |
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.language | English | * |
dc.publisher | American Chemical Society | * |
dc.title | Aggregation of an n-π∗ Molecule Induces Fluorescence Turn-on | * |
dc.type | Article | * |
dc.relation.issue | 21 | * |
dc.relation.volume | 121 | * |
dc.relation.index | SCIE | * |
dc.relation.index | SCOPUS | * |
dc.relation.startpage | 11907 | * |
dc.relation.lastpage | 11914 | * |
dc.relation.journaltitle | Journal of Physical Chemistry C | * |
dc.identifier.doi | 10.1021/acs.jpcc.7b02797 | * |
dc.identifier.wosid | WOS:000402775200101 | * |
dc.identifier.scopusid | 2-s2.0-85020658179 | * |
dc.author.google | Jhun B.H. | * |
dc.author.google | Yi S.Y. | * |
dc.author.google | Jeong D. | * |
dc.author.google | Cho J. | * |
dc.author.google | Park S.Y. | * |
dc.author.google | You Y. | * |
dc.contributor.scopusid | 유영민(24759463600) | * |
dc.date.modifydate | 20240422132144 | * |