Core-shell quantum dots and method of synthesizing thereof

There is provided a quantum dot comprising a core comprising a semiconductor and a shell substantially covering the core. The core has a first side and a second side opposite the first side. The coreis disposed eccentrically inside the shell such that the shell is thinnest at the first side and thickest at the second side. Moreover, the shell has a thickness of greater than or equal to zero at the first side. The core and the shell have different respective lattice constants such that the shell exerts a straining force on the core. The straining force is configured to modify an excitonic finestructure of the core. 提供了种量子点，包括包含半导体的核体以及实质上覆盖核体的壳体。核体具有第侧和与第侧相对的第二侧。核体偏心地设置在壳体内，使得壳体在第侧最薄，在第二侧最厚。此外，壳体在第侧具有大于或等于零的厚度。核体和壳体具有不同的相应晶格常数，使得壳体在核体上施加应变力。应变力被配置为修改核体的激子细微结构。