Patent ID: 11888090
Assignee: DOWA ELECTRONICS MATERIALS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC C  H | IPC H

Claim 0:
1. A semiconductor light-emitting element comprising a light-emitting layer having a layered structure in which a first III-V compound semiconductor layer and a second III-V compound semiconductor layer having different composition ratios are stacked repeatedly, wherein
group III element in the first III-V compound semiconductor layer and the second III-V compound semiconductor layer is one type or two or more types selected from the group consisting of Al, Ga, and In, and group V element in the first III-V compound semiconductor layer and the second III-V compound semiconductor layer is one type or two or more types selected from the group consisting of As, Sb, and P,
the first III-V compound semiconductor layer and the second III-V compound semiconductor layer each contain three or more types of elements selected from the group III element and the group V element, and
a composition wavelength difference between a composition wavelength of the first III-V compound semiconductor layer and a composition wavelength of the second III-V compound semiconductor layer is 50 nm or less, and a ratio of a lattice constant difference between a lattice constant of the first III-V compound semiconductor layer and a lattice constant of the second III-V compound semiconductor layer is not less than 0.05% and not more than 0.60%.