Patent ID: 11942571
Assignee: LUMILEDS, LLC
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 27:
28. A light emitting device, comprising:
a substrate; and
an array of LEDs arranged on the substrate, each LED comprising
a semiconductor diode structure comprising an active region, a top surface, an oppositely positioned bottom surface, and side surfaces connecting the top and bottom surfaces, the bottom surface disposed on or adjacent the substrate;
a nanostructured layer comprising an array of nanoantennas embedded in the semiconductor diode structure between the active region and the top surface; and
a reflector located on the opposite side of the active region from the nanostructured layer,
the array of nanoantennas and the reflector forming an optical cavity that defines a plurality of cavity modes and a density of states, structures and positions of the nanoantennas and the reflector resulting in the cavity modes and density of states being tuned to achieve a selected level of internal quantum efficiency.