Ultraviolet light emitting AlGaN composition, and...

Active solid-state devices (e.g. – transistors – solid-state diode – Incoherent light emitter structure – With particular semiconductor material

Reexamination Certificate

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C257S079000, C257S094000, C257S097000, C257S200000, C257S201000, C257SE21108, C257SE21112, C257SE21113

Reexamination Certificate

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07812366

ABSTRACT:
An AlGaN composition is provided comprising a group III-Nitride active region layer, for use in an active region of a UV light emitting device, wherein light-generation occurs through radiative recombination of carriers in nanometer scale size, compositionally inhomogeneous regions having band-gap energy less than the surrounding material. Further, a semiconductor UV light emitting device having an active region layer comprised of the AlGaN composition above is provided, as well as a method of producing the AlGaN composition and semiconductor UV light emitting device, involving molecular beam epitaxy.

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