▎ 摘　　要

NOVELTY - A surface plasmon enhanced management information system structure type UV LED comprises a bottom-up substrate, a buffer layer, a gallium nitride layer, a p-type gallium nitride layer, a silicon dioxide film layer, a graphene layer and a metal nanoparticle structure. The surface of the metal nanoparticle structure is partially provided with an opening extending to the surface of the p-type gallium nitride layer, such that the surface of the p-type gallium nitride layer forms an exposed region, the upper surface of the exposed region is provided with a p-type ohmic contact electrode and an upper surface of the metal nanoparticle structure is provided with an n-type ohmic contact electrode. USE - Surface plasmon enhanced management information system structure type UV LED. ADVANTAGE - The UV LED adopts a graphene film as a conductive layer to enhance current spreading property, improves UV light emission rate of the device and the internal quantum efficiency of the device, utilizes the local surface plasmon enhancement effect is to cause resonance coupling between the emitted photons and the metal nanoparticles and enhances the luminous intensity with simple structure in simple preparation and easy production. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing a surface plasmon enhanced management information system structure type UV LED.