Tuesday, October 16 2018

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Since the early 1990s, self-assembled quantum dots (QDs) have been the subject of intensive research for technologies ranging from high-stability lasers, to intermediate band solar cells. Driven by compressive strain, semiconductor QDs form spontaneously on the (001) surfaces of both III-V and group IV materials. That being said, QDs grown on non-(001) surfaces, and QDs grown under tensile rather than compressive strain, are highly desirable for certain applications.