Patent ID: 9748444
Date: 2017-08-29
CPC Classifications: B82Y,H01L,Y10S

Claim:
1. A light emitting diode comprising: a substrate; a first semiconductor layer located on the substrate, wherein the first semiconductor layer is a stepped structure comprising a first surface and a second surface, that is lower than the first surface; an active layer located on the first surface of the first semiconductor layer; a second semiconductor layer located on the active layer; a first electrode located on and electrically connected to the second semiconductor layer; a transparent conductive layer located on the second surface of the first semiconductor layer and electrically connected to the first semiconductor layer, wherein the transparent conductive layer comprises a carbon nanotube structure and a plurality of metal particles dispersed in the carbon nanotube structure, wherein the carbon nanotube structure is a free-standing structure and comprises a carbon nanotube film comprising a plurality of carbon nanotubes joined end-to-end by van der Waals attractive force therebetween and substantially parallel to each other, and materials of the plurality of metal particles are gold and nickel; a second electrode located on and electrically connected to the transparent conductive layer; a photon crystal structure, located between the substrate and the first semiconductor layer, comprising a carbon nanotube; and a static electrode located between the first semiconductor layer and the carbon nanotube structure, wherein the carbon nanotube structure fully covers the second surface of the first semiconductor layer, and the carbon nanotube structure comprises a first portion sandwiched between the static electrode and the second electrode and a second portion in direct contact with the second surface of the first semiconductor layer.