Specialist Trainer: Ing. Robert Král, Ph.D., Ing. Vítězslav Jarý, Ph.D.
Field: DAIZ
The topic of this work is focused on the study of single crystalline and powder sulphides based on alkali (A2S) and rare earth metals (RE2S3) and their ternary compounds (ARES2), where A = Li, …, Cs a RE = La, …, Lu (or other trivalent metal). These materials when doped with suitable activator are studied for their promising properties for applications as tunable source of white light, detectors of ionizing radiation (scintillators), and lasers operating in mid infrared region. The goal of this work is a growth of sulphide compounds from their melt via micro-pulling-down and vertical Bridgman methods. Further, to investigate influence of activators, primarily rare earth metals (e.g. Pr, Eu, Tb, etc.), added into the sulphide’s matrix on their final properties and optimize suitable composition and activator’s concentrations. Prepared materials will be studied concerning their composition and purity (element and phasal), measuring their physical (thermal, optical, luminescent, scintillating, etc.) properties and characterized by other techniques available at our Institute.