Electroluminescent device of heterogeneous structure and...

Details Electroluminescent device of heterogeneous structure and... Electroluminescent device of heterogeneous structure and...

H - Electricity

01

L

345/50

H01L 33/00 (2006.01) H05B 33/00 (2006.01)

Patent

CA 1043894

ABSTRACT An electroluminescent semiconductor device of a heterogeneous structure comprises a body of at least one material having a first forbidden bandwidth and having electroluminescent properties and an epitaxial layer of a material having a larger forbidden bandwidth. The body comprising a p-n junction in the proximity of the interface with the epitaxial layer. This epitaxial layer is of the same conductivity type as the body and the device comprises a flat region which has been diffused from a surface part of the outer surface of the layer with a conductivity type which is opposite to that of the body and of the layer. This region extends from the surface down to a depth exceeding the thickness of the layer.

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