Electrooptical Analysis of Effects Induced by Floating Metallic Interlayers in Organic LEDs

Author

Miscioscia, Riccardo ; Vacca, Paolo ; Nenna, Giuseppe ; Fasolino, Tommaso ; La Ferrara, Vera ; Tassini, Paolo ; Minarini, Carla ; Della Sala, Dario

Author_Institution

Phys. Technol. & New Mater. (FIM) Dept., ENEA, Portici, Italy

Volume

56

Issue

9

fYear

2009

Firstpage

1912

Lastpage

1918

Abstract

The aim of this paper is to investigate the electrical and optical property modifications that can be related to the presence of a nanometric metallic layer at the interface between two organic emissive materials in a stacked structure. For purposes of comparison, reference devices have also been analyzed to emphasize the increase of electrical switching and hysteresis behaviors in current-voltage plots and spectral variations in electroluminescence. In this paper, we have tried to summarize the electrical effects of the floating nanometric thin metallic layer by extracting a small number of parameters which can represent the current state of the device.

Keywords

electro-optical devices; metals; nanotechnology; organic light emitting diodes; current-voltage plots; electrical switching; electroluminescence; electrooptical analysis; floating nanometric thin metallic layer; hysteresis behaviors; light emitting diodes; organic LEDs; organic emissive materials; spectral variations; stacked structure; Electroluminescent devices; Fabrication; Hysteresis; Indium tin oxide; Inorganic materials; Light emitting diodes; Metal-insulator structures; Optical bistability; Organic light emitting diodes; Organic materials; Electrical bistability; hysteresis; organic light-emitting diode (OLED); poly[2-methoxy-5-(3, 7-dimethyloctyloxy)-1, 4-phenylenevinylene] (MDMO-PPV); thin interlayer;

fLanguage

English

Journal_Title

Electron Devices, IEEE Transactions on

Publisher

ieee

ISSN

0018-9383

Type

jour

DOI

10.1109/TED.2009.2026311

Filename

5204244