title: Organic light-emitting diode microcavities from transparent conducting metal oxide photonic crystals.
abstract: We report herein on the integration of novel transparent and conducting one-dimensional photonic crystals that consist of periodically alternating layers of spin-coated antimony-doped tin oxide nanoparticles and sputtered tin-doped indium oxide into organic light emitting diode (OLED) microcavities. The large refractive index contrast between the layers due the porosity of the nanoparticle layer led to facile fabrication of dielectric mirrors with intense and broadband reflectivity from structures consisting of only five bilayers. Because our photonic crystals are easily amenable to large scale OLED fabrication and simultaneously selectively reflective as well as electronically conductive, such materials are ideally suited for integration into OLED microcavities. In such a device, the photonic crystal, which represents a direct drop-in replacement for typical ITO anodes, is capable of serving two necessary functions: (i) as one partially reflecting mirror of the optical microcavity; and (ii) as the anode of the diode.
authors.affiliation: Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, Canada M5S 3E4.
authors.forename: Daniel P
authors.initials: DP
authors.lastname: Puzzo
authors.forename: Michael G
authors.initials: MG
authors.lastname: Helander
authors.forename: Paul G
authors.initials: PG
authors.lastname: O'Brien
authors.forename: Zhibin
authors.initials: Z
authors.lastname: Wang
authors.forename: Navid
authors.initials: N
authors.lastname: Soheilnia
authors.forename: Nazir
authors.initials: N
authors.lastname: Kherani
authors.forename: Zhenghong
authors.initials: Z
authors.lastname: Lu
authors.forename: Geoffrey A
authors.initials: GA
authors.lastname: Ozin
mesh_terms: D000965:Antimony / Q000737:chemistry*; D004553:Electric Conductivity; D004867:Equipment Design; D019544:Equipment Failure Analysis; D008029:Lighting / Q000295:instrumentation*; D008904:Miniaturization; D049329:Nanostructures / Q000737:chemistry* / Q000648:ultrastructure*; D009930:Organic Chemicals / Q000737:chemistry*; D010316:Particle Size; D012666:Semiconductors; D017971:Tin Compounds / Q000737:chemistry*
chemical_list: D009930:Organic Chemicals; D017971:Tin Compounds; D000965:Antimony; C045358:stannic oxide