Blue Light Emitting Electrochemical Cells Incorporating Triazole-based Luminophores

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dc.contributor.ISNI0000 0001 2791 9795 (Slinker, JD)
dc.contributor.authorFernández-Hernández, Jesús M.en_US
dc.contributor.authorLadouceur, S.en_US
dc.contributor.authorShen, Y.en_US
dc.contributor.authorIordache, A.en_US
dc.contributor.authorWang, X.en_US
dc.contributor.authorDonato, L.en_US
dc.contributor.authorGallagher-Duval, S.en_US
dc.contributor.authorde Anda Villa, Manuelen_US
dc.contributor.authorSlinker, Jason D.en_US
dc.contributor.authorDe Cola, L.en_US
dc.contributor.authorZysman-Colman, E.en_US
dc.contributor.utdAuthorSlinker, Jason D.en_US
dc.date.accessioned2014-07-16T18:25:32Z
dc.date.available2014-07-16T18:25:32Z
dc.date.created2013-09-20en_US
dc.date.issued2013-09-20en_US
dc.date.submitted2013-07-09en_US
dc.date.submittedLigandsen_US
dc.date.submittedTriazolesen_US
dc.date.submittedSilica gelen_US
dc.description.abstractWe report the electrochemical, photoluminescence, and electroluminescence properties of four fluorinated cationic iridium complexes bearing pyridyltriazole ancillary ligands. All the complexes display unstructured emission in the true blue region at 298 K with photoluminescent λem ranging from 452 to 487 nm in acetonitrile solution, in powder and in PMMA doped thin films. The nature of the emission is a mixed metal-to-ligand/ligand-to-ligand charge transfer state. Photoluminescence (PL) quantum efficiencies both in solution and in the solid state were low while excited state decay kinetics were found to be multiexponential. Each complex undergoes quasi-reversible oxidation and irreversible reduction with large HOMO-LUMO gaps. A detailed computational investigation corroborates the spectroscopic assignments. Additionally, light-emitting electrochemical cells (LEECs) were fabricated for each of the four complexes. The electroluminescence (EL) spectra of all complexes were red-shifted relative to the PL spectra. The LEEC containing 2a is the bluest emitter (λmax = 487 nm) of the family of complexes.en_US
dc.identifier.bibliographicCitationFernández-Hernández, J. M., S. Ladouceur, Y. Shen, A. Iordache, et al. 2013. "Blue light emitting electrochemical cells incorporating triazole-based luminophores." Journal of Materials Chemistry C 1(44): 7440-7452en_US
dc.identifier.issn2050-7534en_US
dc.identifier.issue44en_US
dc.identifier.startpage7440en_US
dc.identifier.urihttp://hdl.handle.net/10735.1/3691
dc.identifier.volume1en_US
dc.language.isoenen_US
dc.relation.urihttp://dx.doi.org/10.1039/C3TC31307G
dc.rights©2014 The Royal Society of Chemistry. This article may not be further made available or distributed.en_US
dc.sourceJournal of Materials Chemistry C
dc.titleBlue Light Emitting Electrochemical Cells Incorporating Triazole-based Luminophoresen_US
dc.typeTexten_US
dc.type.genreArticleen_US

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