Photoinduced Dynamics in Semiconductor Quantum Dots: Insights from Time-Domain ab Initio Studies

Abstract

Nanoscale clusters of bulk materials, also known as quantum dots (QDs), exhibit both molecular and bulk properties. Unlike either bulk or molecular materials, QD properties can be modified continuously by changing QD shape and size. However, the chemical and physical properties of molecular and bulk materials often contradict each other, which can lead to differing viewpoints about the behavior of QDs. For example, the molecular view suggests strong electron-hole and charge-phonon interactions, as well as slow…