Patent ID: 11870011
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A light-emitting diode, comprising:
a first semiconductor layer;
a second semiconductor layer;
a light-emitting layer disposed between the first semiconductor layer and the second semiconductor layer; and
a barrier layer disposed on at least part of a side face of at least one of the first semiconductor layer and
the second semiconductor layer,
wherein the barrier layer is configured to form a charge depletion region between the barrier layer and the at least part of the side face, and a material of the barrier layer includes at least one of metal, conductive metal oxide, graphene, and metallic carbon nanotube;
the first semiconductor layer is a P-type semiconductor layer and the second semiconductor layer is an N-type semiconductor layer;
the barrier layer includes a first barrier layer covering at least part of a side face of the P-type semiconductor layer, and a work function of the first barrier layer is less than a work function of the Ptype semiconductor layer; and
the first barrier layer includes:
a first main body portion covering the side face of the P-type semiconductor layer;
a first extension portion connected to a side of the first main body portion proximate to the light-emitting layer, wherein the first extension portion covers a part of a side face of the light-emitting layer proximate to the P-type semiconductor layer, and a distance exists between the first extension portion and the N-type semiconductor layer in a direction perpendicular to a main surface of the light-emitting layer; and
a second extension portion connected to a side of the first main body portion away from the light-emitting layer, wherein the second extension portion covers an edge of a main surface of the P-type semiconductor layer away from the light-emitting layer.