Patent ID: 11888089
Assignee: NICHIA CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A light emitting element comprising:
an n-side nitride semiconductor layer;
an active layer disposed on the n-side nitride semiconductor layer and comprising a plurality of nitride semiconductor well layers and a plurality of nitride semiconductor barrier layers, wherein the active layer is configured to emit ultraviolet light; and
a p-side nitride semiconductor layer disposed on the active layer, wherein:
at least one of the plurality of barrier layers comprises, successively from an n-side nitride semiconductor layer side:
a first barrier layer comprising Al and Ga, and
a second barrier layer disposed in contact with the first barrier layer, comprising Al, Ga, and In, and having a smaller band gap energy than the first barrier layer,

at least one of the plurality of well layers is disposed in contact with the second barrier layer and has a smaller band gap energy than the second barrier layer,
one or more of the plurality of well layers comprises In, and
an In content of the one or more well layers among the plurality of well layers is identical with an In content of the second barrier layer.