Operation characteristics and degradation of organic electroluminescent devices

Author

Sato, Yoshiharu ; Ichinosawa, Shoko ; Kanai, Hiroyuki

Author_Institution

Res. Center, Mitsubishi Chem. Corp., Yokohama, Japan

Volume

4

Issue

1

fYear

1998

Firstpage

40

Lastpage

48

Abstract

The degradation of the organic electroluminescent (EL) device is closely related to the physical and chemical stability of the organic thin films. Three important aspects are described: 1) an effect of glass transition temperature of hole transport materials on thermal stability of the device; 2) a role of interface layers at both the anode and cathode; and 3) an improvement of operation stability by doping technology. Considering the above points, an organic EL device was fabricated with a good operation performance: lifetime of longer than 3000 h at an initial luminance of 500 cd/m²

Keywords

anodes; cathodes; electroluminescent devices; glass transition; interface states; life testing; optical materials; optical testing; organic compounds; thermal stability; 3000 h; anode; cathode; chemical stability; doping technology; glass transition temperature; good operation performance; hole transport materials; initial luminance; interface layers; life testing; operation characteristics; operation stability; optical testing; organic electroluminescent device degradation; organic thin films; physical stability; Anodes; Cathodes; Doping; Electroluminescent devices; Glass; Organic chemicals; Temperature; Thermal degradation; Thermal stability; Thin film devices;

fLanguage

English

Journal_Title

Selected Topics in Quantum Electronics, IEEE Journal of

Publisher

ieee

ISSN

1077-260X

Type

jour

DOI

10.1109/2944.669464

Filename

669464