Characterizaton of tetracene-based electroluminescent devices produced by cluster beam deposition methods

Eun A. You, Young Geun Ha, Young Sang Choi, Jong-Ho Choi

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17 Citations (Scopus)

Abstract

We have fabricated and characterized heterojunction electroluminescent devices with the structure of ITO-coated glass/tetracene/(DCM-doped)Alq 3/Li:Al. The organic thin films of tetracene, Alq3, and dye dopant DCM were deposited by applying the cluster beam deposition (CBD) methods. X-ray diffraction (XRD) and atomic force microscopy (AFM) measurements show that the flat and smooth thin tetracene films are close to a highly ordered, single crystal. Photoluminescence (PL), electroluminescence (EL) and device characteristics such as current density-voltage (J - V), EL intensity-voltage (L - V), and external quantum efficiency-current (EQE-I) were examined for undoped and DCM-doped devices.

Original languageEnglish
Pages (from-to)209-212
Number of pages4
JournalSynthetic Metals
Volume153
Issue number1-3
DOIs
Publication statusPublished - 2005 Sep 21

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Keywords

  • Alq
  • Cluster beam deposition
  • DCM
  • OLED
  • Tetracene

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Chemistry
  • Polymers and Plastics

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