HIGH-EFFICIENCY LIGHT-EMITTING DIODE

摘要

PROBLEM TO BE SOLVED: To provide a high-efficiency light-emitting diode.SOLUTION: A light-emitting diode includes: a semiconductor laminate structure 30 including a p-type compound semiconductor layer 29, an active layer 27, and an n-type compound semiconductor layer 25; a first electrode located above the semiconductor laminate structure 30; and a graphene-meta material laminate structure 50 at least partially located between the first electrode and the semiconductor laminate structure 30. The adoption of the meta material can prevent light loss due to the first electrode and can increase the light efficiency of the light-emitting diode.