0000000001082708

AUTHOR

Silvia Schaffner

showing 2 related works from this author

Archetype Cationic Iridium Complexes and Their Use in Solid-State Light-Emitting Electrochemical Cells

2009

The archetype ionic transition-metal complexes (iTMCs) [Ir(ppy)2(bpy)][PF6] and [Ir(ppy)2(phen)][PF6], where Hppy = 2-phenylpyridine, bpy = 2,2'-bipyridine, and phen = 1,10-phenanthroline, are used as the primary active components in light-emitting electrochemical cells (LECs). Solution and solid-state photophysical properties are reported for both complexes and are interpreted with the help of density functional theory calculations. LEC devices based on these archetype complexes exhibit long turn-on times (70 and 160 h, respectively) and low external quantum efficiencies (~ 2%) when the complex is used as a pure film. The long turn-on times are attributed to the low mobility of the counter…

Materials scienceIonic bondingchemistry.chemical_elementElectroluminescenceCondensed Matter PhysicsElectronic Optical and Magnetic MaterialsElectrochemical cellBiomaterialschemistry.chemical_compoundBipyridinechemistryTransition metalIonic liquidElectrochemistryPhysical chemistryOrganic chemistryDensity functional theoryIridiumAdvanced Functional Materials
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Two are not always better than one: ligand optimisation for long-living light-emitting electrochemical cells

2009

The complex [Ir(ppy)2(dpbpy)][PF6] (Hppy = 2-phenylpyridine, dpbpy = 6,6'-diphenyl-2,2'-bipyridine) has been prepared and evaluated as an electroluminescent component for light-emitting electrochemical cells (LECs); the complex exhibits two intramolecular face-to-face π-stacking interactions and long-lived LECs have been constructed; the device characteristics are not significantly improved in comparison to analogous LECs with 6-phenyl-2,2'-bipyridine. Costa Riquelme, Ruben Dario, Ruben.Costa@uv.es ; Orti Guillen, Enrique, Enrique.Orti@uv.es ; Bolink, Henk, Henk.Bolink@uv.es

Complex ; 2-phenylpyridine ; LECs ; Light-emitting electrochemical cellsLigandUNESCO::QUÍMICALight-emitting electrochemical cellsUNESCO::QUÍMICA::Química analíticaLECsMetals and AlloysNanotechnologyGeneral ChemistryElectroluminescence:QUÍMICA [UNESCO]Combinatorial chemistryCatalysisSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsElectrochemical cellchemistry.chemical_compoundchemistryComplexIntramolecular force:QUÍMICA::Química analítica [UNESCO]Materials ChemistryCeramics and Composites2-phenylpyridine2-PhenylpyridineChemical Communications
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