Microcavity LED with photon recycling with photon recycling

摘要

A micro-LED having photon recycling has a substrate having at least one material layer, a first clad layer and a second clad layer, and an active layer lying between the first and second layers to form a mesa on the material layer. The mesa generally has an electrical conductor and a light reflecting system having vertical side and top surface and located on the vertical side of the mesa and partially covering the top surface to form a first electrical contact with the LED, And the light reflecting system define the light emitted at the opening on the surface of the mesa to be centrally located, wherein the diameter of the surface has a diameter larger than the diameter dimension of the opening.