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 language | English |
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Pages (from-to) | 209-212 |
Number of pages | 4 |
Journal | Synthetic Metals |
Volume | 153 |
Issue number | 1-3 |
DOIs | |
Publication status | Published - 2005 Sept 21 |
Keywords
- Alq
- Cluster beam deposition
- DCM
- OLED
- Tetracene
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry