Observation of ultraslow hole dynamics in the 3D topological insulator Bi2Se3 coated with a thin MgF2 layer using multiphoton pumped UV-Vis transient absorption spectroscopy

Yuri D. Glinka, Tingchao He, Xiao Wei Sun

Individual relaxation dynamics of electrons and holes in optically pumped semiconductors is rarely observed due to their overlap. Here we report the individual dynamics of long-liv…