title: Two are not always better than one: ligand optimisation for long-living light-emitting electrochemical cells.
abstract: The complex [Ir(ppy)(2)(dpbpy)][PF(6)] (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 pi-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.
authors.affiliation: Instituto de Ciencia Molecular, Universidad de Valencia, PO Box 22085, Valencia, Spain.
authors.forename: Rubén D
authors.initials: RD
authors.lastname: Costa
authors.forename: Enrique
authors.initials: E
authors.lastname: Ortí
authors.forename: Henk J
authors.initials: HJ
authors.lastname: Bolink
authors.forename: Stefan
authors.initials: S
authors.lastname: Graber
authors.forename: Catherine E
authors.initials: CE
authors.lastname: Housecroft
authors.forename: Markus
authors.initials: M
authors.lastname: Neuburger
authors.forename: Silvia
authors.initials: S
authors.lastname: Schaffner
authors.forename: Edwin C
authors.initials: EC
authors.lastname: Constable