Organic electroluminescent component with exciplex formed from a

Details Organic electroluminescent component with exciplex formed from a Organic electroluminescent component with exciplex formed from a

1997-09-18

1999-09-21

O'Shea, Sandra

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313503, 313504, B32B 900, H05B 3314

Patent

active

059558369

ABSTRACT:
An organic electroluminescent component with a transparent substrate, a first transparent electrode, a mixed layer comprising a light-emitting exciplex formed by a mixture of a hole transporting and electron transporting organic material, and a second electrode, where no further substances are used besides the hole transporting and the electron transporting compounds in which the redox processes serving for the charge transport are reversible, has a low operating voltage accompanied by a high luminance thanks to the simple layer structure. It has a long lifetime.

REFERENCES:
patent: 4720432 (1988-01-01), Vanslyke et al.
patent: 5281489 (1994-01-01), Mori et al.
patent: 5716722 (1998-02-01), Hamada et al.
"Electroluminescence of Molecularly-Doped Polymer Films Using Coumarin Derivative as an Emissive Center", Ching-Piao Lin, Tetsuo Tsutsui and Shogo Saito, Journal of Polymer Research vol. 2, No. 3 133-138, Jul. 1995.
Polymer Light-Emitting Diodes with Single-and Double-Layer Structures Using Poly (2, 3-Diphenylquinoxaline-5, 8-Diyl), Takakazu Yamamoto, Tetsuji Inoue and Takaki Kanbara, Japanese Journal of Applied Physics, Part 2 (Letters), Feb. 15, 1994, pp. 250-253.

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