Electrospun light-emitting nanofibers.

Moran-Mirabal, José M; Slinker, Jason D; DeFranco, John A; Verbridge, Scott S; Ilic, Rob; Flores-Torres, Samuel; Abruña, Héctor; Malliaras, George G et al. · Nano Lett · 2007

basic_science · Level V

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Abstract

We have electrospun light-emitting nanofibers from ruthenium(II) tris(bipyridine)/polyethylene oxide mixtures. The electroluminescent fibers were deposited on gold interdigitated electrodes and lit in a nitrogen atmosphere. The fibers showed light emission at low operating voltages (3-4 V), with turn-on voltages approaching the band gap limit of the organic semiconductor. Because of the fiber size, emission from electrospun light-emitting nanofibers is confined to nanoscale dimensions, an attractive feature for sensing applications and lab-on-a-chip integration where highly localized excitation of molecules is required.