Abstract
A detailed photophysical characterization of [Ir(ppy)2(dmb)]+, ppy=2-phenilpyridyne and dmb=4,4′-dimethyl-2,2′-bipyridyne, was performed in dichloromethane and films to be evaluated as active layers in light-emitting devices. The complex showed suitable photophysical features (ϕ=0.22 and τ=0.60μs) in different media and was successfully applied, for the first time, as a thin spin-coated emissive layer in an ionic transition metal complex (iTMC) light-emitting electrochemical cell (LEC). The optoelectronic characterization of the FTO/PEDOT:PSS/[Ir(ppy)2(dmb)][PF6]/Al device was carried out outside of a glovebox, with CIE coordinates of x=0.48 and y=0.50 and current efficiency up to 59.7cdA−1. This iTMC LEC, which turned on even under air, stands as a bridge between molecular devices and manufacture engineering to contribute for affordable LEC fabrication processes.
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