Optically transparent diffusion barrier and top electrode in org

Details Optically transparent diffusion barrier and top electrode in org Optically transparent diffusion barrier and top electrode in org

1996-09-20

1998-02-03

Patel, Ashok

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313504, H01J 162

Patent

active

057148384

ABSTRACT:
In the formation of organic light emitting diodes with a transparent top electrode, it was discovered that many of the materials used for this electrode can readily diffuse at room temperature into the organic films, creating shorts and otherwise compromising the performance of the diode. A solution to this problem is disclosed which involves a method for the creation of a diffusion barrier which prevents diffusion of electrode materials into the substrate while enhancing the ability of the OLED to emit light through the top electrode.

REFERENCES:
patent: 5616427 (1997-04-01), Tada

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