Influence of electrical, chemical and morphological properties of inorganic/organic interface on light emitting devices performance

Paolo Vacca, Mario Petrosino, Rosa Chierchia, Alfredo Guerra, Carla Minarini, Alfredo Rubino

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

studies on the influence of chemical and physical treatments on the properties of indium-tin oxide (ITO) thin films are reported. The ITO films are utilized as transparent anodes of organic light-emitting diodes (OLEDs) incorporating poly(9,9-dihexyl-9H-fluorene-2,7-diyl) (PF6) as the hole transporter material and 8-hydroxyquinoline aluminum salt (Alq3) as emitter material. Chemical (HCl, piranha solutions), thermal (vacuum annealing), physical treatments (oxygen plasma, UV ozone) and combined treatments are studied. First, ITO layers with different treatments are characterized by using four point probe method, contact angle measurement, X-Ray diffraction (XRD), surface profilometer, scanning electron microscopy (SEM), UV-Vis-IR transmittance. Later, electrical and optical properties of OLEDs with treated ITO as anode are extensively investigated. Copyright © 2007 WILEY-VCH Verlag GmbH & Co. KGaA.
Original languageEnglish
Pages (from-to)333 - 339
Number of pages7
JournalMacromolecular Symposia
Volume247
DOIs
Publication statusPublished - 2007

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All Science Journal Classification (ASJC) codes

  • Polymers and Plastics
  • Materials Chemistry

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