Tunnel-Junction Multiple Wavelength Light-Emitting Diodes
A multiple wavelength LED having a monolithic cascade cell structure comprising at least two p-n junctions, wherein each of said at least two p-n junctions have substantially different band gaps, and electrical connector means by which said at least two p-n junctions may be collectively energized; and wherein said diode comprises a tunnel junction or interconnect.
US 5,166,761 [MORE INFO
Jerry M. Olson; Sarah R. Kurtz
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