Method of making an organic light-emitting device

Details Method of making an organic light-emitting device Method of making an organic light-emitting device

1998-11-13

2000-04-11

Beck, Shrive

Coating processes

Electrical product produced

Fluorescent or phosphorescent base coating

427 69, 427 70, B05D 506, B05D 512

Patent

active

060485736

ABSTRACT:
A method of making an organic light-emitting device is disclosed in which a dopant layer is formed adjacent to a light-emitting layer containing a light-emitting host material. The dopant is diffused from the dopant layer into the light-emitting layer by exposing the light-emitting layer and the dopant layer to vapor of a fluid or fluid mixture. The method permits doping of a light-emitting layer with one dopant or with multiple dopants so as to modify the color and efficiency of light emitted from the light-emitting layer.

REFERENCES:
patent: 4356429 (1982-10-01), Tang
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patent: 4720432 (1988-01-01), VanSlyke et al.
patent: 4769292 (1988-09-01), Tang et al.
patent: 5150006 (1992-09-01), VanSlyke et al.
patent: 5194290 (1993-03-01), Robertson

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