title: Enhanced light extraction in ITO-free OLEDs using double-sided printed electrodes.
abstract: We show how nanoimprint lithographic techniques are particularly suited for the realization of OLED device structures. We tested them to realize nanopatterned metallic electrodes containing photonic crystals to couple the light out and plasmonic crystals showing extraordinary transmission. At similar current densities, a two-fold electroluminescence is achieved with devices having double-sided structured metallic electrodes as compared to a control OLED with an ITO anode. The use of combined nanoimprint lithography processes has the potential to expand the performance range of various organic optoelectronic devices.
authors.affiliation: Catalan Institute of Nanotechnology, Campus UAB, Edifici CM3, 08193 Bellaterra (Barcelona), Spain. vincent.reboud@cea.fr
authors.forename: Vincent
authors.initials: V
authors.lastname: Reboud
authors.forename: Ali Z
authors.initials: AZ
authors.lastname: Khokhar
authors.forename: Borja
authors.initials: B
authors.lastname: Sepúlveda
authors.forename: Damian
authors.initials: D
authors.lastname: Dudek
authors.forename: Tim
authors.initials: T
authors.lastname: Kehoe
authors.forename: John
authors.initials: J
authors.lastname: Cuffe
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Kehagias
authors.forename: Mónica
authors.initials: M
authors.lastname: Lira-Cantu
authors.forename: Nikolaj
authors.initials: N
authors.lastname: Gadegaard
authors.forename: Valentina
authors.initials: V
authors.lastname: Grasso
authors.forename: Vito
authors.initials: V
authors.lastname: Lambertini
authors.forename: Clivia M
authors.initials: CM
authors.lastname: Sotomayor Torres