Patent ID: 9202975
Filing Date: 2015-12-01
Classification: B82Y,H01L,Y10S

Abstract:
1. A light emitting diode, comprising: a substrate comprising an epitaxial growth surface; a semiconductor epitaxial layer on the epitaxial growth surface, wherein the semiconductor epitaxial layer comprises a first semiconductor layer, an active layer, and a second semiconductor layer stacked on the substrate, the active layer is between the first semiconductor layer and the second semiconductor layer, the first semiconductor layer comprises a first surface in direct contact with the epitaxial growth surface of the substrate and a second surface opposite to the first surface, the second semiconductor layer comprises a third surface and a fourth surface opposite to the third surface, and the active layer is located between the second surface and the third surface; a first electrode electrically connected with the second semiconductor layer; a second electrode in direct and electrical contact with the first semiconductor layer; a reflection layer covering the fourth surface of the second semiconductor layer so that when photons are produced in the active layer the photons are reflected by the reflection layer and light of the light emitting diode is emitted from the side of the substrate; and a first graphene layer located between the active layer and the first semiconductor layer, wherein the first graphene layer comprises a plurality of first apertures and is spaced from the second electrode, wherein the first semiconductor layer is in direct contact with the active layer by extending the first semiconductor layer through the plurality of first apertures.