Methylammonium lead triiodine (MAPbI3) is a material representative of the hybrid organic–inorganic halide perovskites which currently attract great attention due to their photovoltaic efficiency and bright optoelectronic properties. Here, coherent spin dynamics charge carriers spin-dependent phenomena induced by carrier interaction with nuclear spins are studied in MAPbI3 single crystals, usin...

Abstract The relaxation time approximation (RTA) is a well known method of describing the evolution statistical ensemble by linking distributions variables interest at different stages their temporal evolution. We show that if all occurring in RTA have same functional form quasi-power Tsallis distribution which depends on its control parameter, nonextensivity q ( t ), then it more convenient to...

Branched nanocrystal heterostructures synthesized from CdSe and CdTe exhibit a type II band structure alignment that induces separation of charge upon photoexcitation and localizes carriers to different regions of the tetrahedral geometry. The dynamics of carrier relaxation examined with femtosecond pump-probe spectroscopy showed heterostructures having rise times and biexponential decays longe...