Эволюция структурных и оптических свойств наноструктурированных пленок PbS при легировании железом(II)

Abstract

The properties of chemically deposited PbS films were studied with the addition of FeCl2 salt up to 5 mM into the reaction bath. The X-ray data points that at dopant concentration up to 1 mM, Fe2+ ions are located in the interstice positions, and only at 5 mM Fe2+ ions substitute Pb2+ ones. The band gap also slightly changes from 0.44 eV to 0.42 eV at concentration of FeCl2 up to 1 mM and rises to 0.58 eV at 5 mM. The effect of magnetic field on the impurity absorption band at ~ 0.3 eV is found.