垂直对准量子点结构对光学性质的影响

Semiconductor quantum dots can be prepared by molecular beam epitaxy through SK mode. By adiusting the structure parameters and grouth parameters, multi-layer quantum dots can distribute in different patterns along growth direction. Vertically coupled quantum dots is important for the preparation of quantum dot lasers. In this paper, the work of several groups on vertically coupled quantum dots is summarized, such as the effect of quantum dots thickness, spacer thickness on optical properties of materials.