Abstract: Group-III nitride structure comprising at least one structure pyramid having a base having at least four sides. The structure pyramid comprises an inner pyramid having a base having at least four sides, which inner pyramid is made of a first group-III nitride. The inner pyramid is coated with an inner first layer made of a second group-III nitride and an outer second layer made of a third group-III nitride, wherein the second group-III nitride has a lower band gap than the first group-III nitride and a lower band gap than the third group-III nitride. The base of the structure pyramid is elongated resulting in an upper ridge creating at least one anisotropic quantum dot.
Type:
Grant
Filed:
June 26, 2013
Date of Patent:
May 10, 2016
Assignee:
POLAR LIGHT TECHNOLOGIES AB
Inventors:
Anders Lundskog, Chih-Wei Hsu, Fredrik Karlsson