Epitaxial size control by mismatch tuning in electrodeposited Cd (Se, Te) quantum dots on {111} gold Academic Article uri icon

abstract

  • Since the crystal size of semiconductor quantum dots (QDs) affects the optoelectronic properties of QDs, a method of controlling the size is important. It is demonstrated that CdSe QDs electrodeposited epitaxially on {111} Au can be tuned from< 5 to∼ 20 nm by introducing small amounts of Te into the electrodeposited CdSe, ie, by decreasing the mismatch between the deposited layer and the substrate. A further advantage of this technique is the ability to vary the bandgap continuously and controllably.

publication date

  • January 1, 1996