title: Enhancement of light polarization from electrospun polymer fibers by room temperature nanoimprint lithography.
abstract: We demonstrate the enhancement of the polarization ratio of light emitted from electrospun conjugated polymer nanofibers, by means of nanoimprint lithography carried out at room temperature. We provide evidence of tailoring the polarization properties by patterning light-emitting fibers at the nanoscale. The polarization ratios are increased up to a factor of 2.4 by gratings with periodicity (560 nm) matching the emission wavelength of the employed conjugated polymer. The use of room temperature nanoimprint lithography to pattern light-emitting polymer nanofibers represents a strategic route for realizing photonic crystals and distributed feedback polarized emitters on one-dimensional organic nanostructures.
authors.affiliation: NNL, National Nanotechnology Laboratory of Istituto Nanoscienze-Consiglio Nazionale delle Ricerche, c/o Distretto Tecnologico ISUFI, via Arnesano, I-73100 Lecce, Italy.
authors.forename: Stefano
authors.initials: S
authors.lastname: Pagliara
authors.forename: Andrea
authors.initials: A
authors.lastname: Camposeo
authors.forename: Elisa
authors.initials: E
authors.lastname: Mele
authors.forename: Luana
authors.initials: L
authors.lastname: Persano
authors.forename: Roberto
authors.initials: R
authors.lastname: Cingolani
authors.forename: Dario
authors.initials: D
authors.lastname: Pisignano