Patent ID: 8841147
Filing Date: 2014-09-23
Classification: H01L

Abstract:
1. A method for making a light emitting diode, the method comprising: providing a first epitaxial substrate having a first epitaxial growth surface; placing a carbon nanotube layer on the first epitaxial growth surface of the first epitaxial substrate; epitaxially growing an intrinsic semiconductor layer on the first epitaxial growth surface, wherein the intrinsic semiconductor layer is a discontinuous epitaxial layer comprising a plurality of nanostructures spaced from each other; forming a second epitaxial substrate by removing the carbon nanotube layer, wherein the second epitaxial substrate has a patterned surface defined as a second epitaxial growth surface; growing a first semiconductor layer, an active layer and a second semiconductor layer on the second epitaxial growth surface in that order, wherein a surface of the first semiconductor layer contacting the second epitaxial substrate is patterned and engaged with the second epitaxial growth surface of the second epitaxial substrate; exposing a part of the first semiconductor layer by etching a part of the active layer and the second semiconductor layer; and applying a first electrode on the first semiconductor layer and applying a second electrode on the second semiconductor layer.