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Tunnel junction multiple wavelength light-emitting diodes

  • US 5,166,761 A
  • Filed: 04/01/1991
  • Issued: 11/24/1992
  • Est. Priority Date: 04/01/1991
  • Status: Expired due to Fees
First Claim
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1. A multiple wavelength light-emitting diode having a monolithic cascade cell structure comprising:

  • diodes having at least two p-n junctions, wherein each of said at least two p-n junction diodes are top and bottom cells having substantially different band gaps;

    electrical connector means by which said at least two p-n junctions may be collectively energized; and

    a transparent tunnel p-n junction interconnecting said diodes of substantially different band gaps.

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