Process for fabricating electroluminescent device

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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428690, 428691, 428117, 427107, 313504, C09K 1100

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active

056676077

ABSTRACT:
A process for fabricating a blue-emitting SrS:Ce based electroluminescent device, which improves in brightness and blue color purity of the electroluminescent device, is disclosed. The blue-emitting luminescent layer of the device is formed as follows: a luminescent layer based on strontium sulfide (SrS) with cerium (Ce) doped at a concentration in a range of 0.01% by atomic or higher but less than 0.3% by atomic is deposited; and then heat treatment is applied thereto at a temperature in a range of 400.degree. C. or higher but 550.degree. C. or lower before forming any other layer thereon.

REFERENCES:
patent: 4869973 (1989-09-01), Nishikawa et al.
patent: 5182491 (1993-01-01), Taguchi et al.
Mauch, et al: "High efficiency SrS,SrSe: CeC1.sub.3 based thin film electroluminescent devices", Journal of Crystal Growth 117 (1992) 964-968, pp. 964-968.

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