Patent ID: 6891869

Claim:
An opto-electronic device comprising: a crystalline substrate; an insulator layer coextensive with a top surface of the crystalline substrate; an epitaxial stack of alternating photon-active semiconductor layers and electrical-insulator layers above a central part of the top surface of the insulator layer; first contact means formed on a first edge part of the top surface of the insulator layer; said first contact means extending parallel with a direction of epitaxial deposition and being in contact with one side wall of at least one active semiconductor layer for extracting electrons from or injecting electrons into the active semiconductor layer(s) associated therewith; second contact means formed on a second edge part of the top surface of the insulator layer; and said second contact means extending parallel with the direction of epitaxial deposition and being in contact with a second side wall of at least one active semiconductor layer for extracting holes from or injecting holes into the active semiconductor layer(s) associated therewith.