Luminescence kinetic of CsPbBr3 quantum dots
CsPbBr3 quantum dots have been studied as a luminophore for scintillators that could be used in technology of ionizing radiation detectors. The main optical process that characterizes luminophore parameters is the kinetic of luminescence. In order to study optical parameters one phase of CsPbBr3 quantum dots was isolated from the solution by using 400 nm filter and placed in toluene. Time resolved photoluminescence was measured for received sample by using ultraviolet laser diode (λ = 372 nm) as a source. Empirical expression from decay time plot was obtained. The expression described model of luminescence kinetic for CsPbBr3 quantum dots. According to the magnitude of empirical parameter received from the expression it was concluded that the recombination mechanism of luminescence on traps predominated for the studied samples of CsPbBr3 quantum dots. The expression could be used for modeling optical proprieties for nanosized CsPbBr3.