Electroluminescent device

Details Electroluminescent device Electroluminescent device

1997-07-07

2000-01-04

Nold, Charles

Stock material or miscellaneous articles

Composite

Of inorganic material

428691, 428917, 313504, 313506, H05B 3314

Patent

active

060107960

ABSTRACT:
An organic electroluminescent device of a single heterostructure is fabricated by forming a transparent electrode (anode) of ITO, a hole transport layer, an electron transport layer and a metal electrode (cathode) in that order on a glass substrate. An exciton generation promoting layer is formed between the hole transport layer and the electron transport layer. The hole transport layer is a two-layer structure consisting of a hole transport light emitting layer or a hole injection layer, and a hole transport light emitting layer. Exciton generation in the hole transport light emitting layers 4a and 4b can be promoted. The hole injection layer enables efficient hole injection.

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