▎ 摘　　要

NOVELTY - The LED has a gate electrode (114) placed in a light emission region (123), and an insulating layer (112) isolating the electrode from a light-emitting layer (120), where the light-emitting layer is formed by one among the group consisting of graphene, boron nitride, cadmiumtellurium, molybdenum disulfide and niobium die selenide. Width of a drain region (122) in the LED is broader from an area-source (121) in direction to the drain region. The light-emitting layer is formed with a layer of bismuth strontium calcium copper oxide, where the size of the LED lies between 5-20 nanometers. USE - Graphene utilization type LED. ADVANTAGE - The LED provides proper voltage to the area-source and drain region, and transition speed of the hole and electrons is nearly same, thus greatly improving luminous efficiency. The LED is compact. DESCRIPTION OF DRAWING(S) - The drawing shows a cross-sectional view of a graphene utilization type LED. Insulating layer (112) Gate electrode (114) Light-emitting layer (120) Area-source (121) Drain region (122) Light emission region (123) Source electrode pad (131) Drain electrode pad (132)