Organic light emitting device including photo responsive...

Details Organic light emitting device including photo responsive... Organic light emitting device including photo responsive...

2008-02-20

2010-11-23

Patel, Nimeshkumar D (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

C427S553000, C427S508000

Reexamination Certificate

active

07839080

ABSTRACT:
Provided is a method of fabricating an organic light emitting device using a solution process. The method includes forming an electrode on a lower substrate; depositing an organic active material solution containing at least one photoreactive material on the electrode to form an organic active material layer; and radiating light onto the organic active material layer so that a characteristic of the light varies according to the depth of the organic active material layer in order to gradually vary a molecular orientation structure in the organic active material layer according to the depths, thereby resulting in a carrier mobility gradient according to the depths of the organic active material layer.

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Yan Shao, et al., “Naturally formed graded junction for organic light-emitting diodes”, Applied Physics Letters, (2003), vol. 83 No. 12, Sep. 22, 2003, pp. 2453-2455.

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