  Light emitting electrospun nanofibers of
poly-[(9,9-dioctylfluorenyl-2,7-diyl)-co-(N,N'-diphenyl)-N,N'-di(p-butyl-oxy-phenyl)-1,4-diaminobenzene)]
(PFO-PBAB) are produced by electrospinning under different experimental
conditions. In particular, uniform fibers with average diameter of 180 nm are
obtained by adding an organic salt to the electrospinning solution. The
spectroscopic investigation assesses that the presence of the organic salt does
not alter the optical properties of the active material, therefore providing an
alternative approach for the fabrication of highly emissive conjugated polymer
nanofibers. The produced nanofibers display self-waveguiding of light, and
polarized photoluminescence, which is especially promising for embedding active
electrospun fibers in sensing and nanophotonic devices.
