Light-emitting element and light-emitting device

Details Light-emitting element and light-emitting device Light-emitting element and light-emitting device

2011-06-21

2011-06-21

Cao, Phat X (Department: 2814)

Active solid-state devices (e.g., transistors, solid-state diode

Thin active physical layer which is

Heterojunction

C257S040000, C257SE39007

Reexamination Certificate

active

07964864

ABSTRACT:
It is an object of the present invention to provide a light-emitting element having a layer containing a light-emitting material and a transparent conductive film between a pair of electrodes, in which electric erosion of the transparent conductive film and metal can be prevented, and also to provide a light-emitting device using the light-emitting element. According to one feature of the invention, a light-emitting element includes a first layer102containing a light-emitting material, a second layer103containing a material having a donor level, a third layer104including a transparent conductive film, and a fourth layer105containing a hole-transporting medium between a first electrode101and a second electrode106, in which the first layer102, the second layer103, the third layer104, the fourth layer105, and the second electrode106are provided sequentially, in which the second electrode106has a layer containing metal.

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