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Multiple resonance thermally activated delayed fluorescence enhanced by halogen atoms
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Youngnam | - |
dc.contributor.author | Hong, Jong-In | - |
dc.date.accessioned | 2022-10-12T00:33:41Z | - |
dc.date.available | 2022-10-12T00:33:41Z | - |
dc.date.created | 2022-09-02 | - |
dc.date.issued | 2022-08 | - |
dc.identifier.citation | Journal of Materials Chemistry C, Vol.10 No.33, pp.11855-11861 | - |
dc.identifier.issn | 2050-7526 | - |
dc.identifier.uri | https://hdl.handle.net/10371/185838 | - |
dc.description.abstract | We synthesized halogen-substituted multiple-resonance (MR) thermally activated delayed fluorescence emitters, namely 2,12-dichloro-N,N,5,9-tetrakis(4-chlorophenyl)-5,9-dihydro-5,9-diaza-13b-boranaphtho[3,2,1-de]anthracen-7-amine (Cl-MR) and 2,12-dibromo-N,N,5,9-tetrakis(4-bromophenyl)-5,9-dihydro-5,9-diaza-13b-boranaphtho[3,2,1-de]anthracen-7-amine (Br-MR). Cl-MR and Br-MR exhibited a decreased delayed fluorescence lifetime and an enhanced reverse intersystem crossing rate without any changes in Delta E-ST and orbital distribution compared with a non-halogenated MR emitter. Cl-MR exhibited a high photoluminescence quantum yield (PLQY) of 85% and external quantum efficiency (EQE) of 17%; however, Br-MR did not exhibit any enhancement in the PLQY and EQE. The different performances of Cl-MR and Br-MR were rationalized by analysing the rate constants of the excited states and bond dissociation energies of the carbon-halogen bonds. | - |
dc.language | 영어 | - |
dc.publisher | Royal Society of Chemistry | - |
dc.title | Multiple resonance thermally activated delayed fluorescence enhanced by halogen atoms | - |
dc.type | Article | - |
dc.identifier.doi | 10.1039/d2tc02909j | - |
dc.citation.journaltitle | Journal of Materials Chemistry C | - |
dc.identifier.wosid | 000842734800001 | - |
dc.citation.endpage | 11861 | - |
dc.citation.number | 33 | - |
dc.citation.startpage | 11855 | - |
dc.citation.volume | 10 | - |
dc.description.isOpenAccess | N | - |
dc.contributor.affiliatedAuthor | Hong, Jong-In | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
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