Material for use in a light-emitting device and highly...

Details Material for use in a light-emitting device and highly... Material for use in a light-emitting device and highly...

2005-01-18

2005-01-18

Jones, Deborah (Department: 1775)

Stock material or miscellaneous articles

Composite

Of inorganic material

C428S704000, C428S917000, C313S504000, C313S506000, C252S301160, C252S301260, C546S152000, C546S153000, C546S159000, C546S170000, C546S172000, C257S040000, C257S103000

Reexamination Certificate

active

06844087

ABSTRACT:
A material is provided that can be used for a light-emitting device. The base unit of said material is tris(8-quinolinolato)aluminum(III) (Alq3). This Alq3 is substituted in the said 3- or 4-position with an electron-donor group and simultaneously in the said 5-position with an electro-acceptor or p-delocalizing group. Using this material as an emitting luminescent layer, the efficiency of the intrinsic luminescence can be greatly enhanced.

REFERENCES:
patent: 4885211 (1989-12-01), Tang et al.
patent: 5382477 (1995-01-01), Saito et al.
patent: 5484922 (1996-01-01), Moore et al.
patent: 5597925 (1997-01-01), Ohta et al.
patent: 5709959 (1998-01-01), Adachi et al.

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