▎ 摘　　要

NOVELTY - The utility model claims a vertical type graphene LED chip are a back metal layer, the substrate, the first bonding metal layer, a second bonding metal layer, a p-type electrode and the p-type gallium nitride layer, a multi-quantum-well layer, the n-type gallium nitride layer, an n-type electrode, the substrate and the back metal layer with graphene, or the substrate and the first bonding metal layer with graphene, or the substrate and the back metal layer and a substrate with the first bonding metal layer are provided with graphene. Increasing the graphene layer can solve the silicon substrate with the bonding metal layer and the back metal layer contacting the hot poor interface, at the same time, graphene with high carrier mobility, the graphene-containing layer does not affect even improve the luminous performance of the whole LED device.