Using the methods of electron spectroscopy for chemical analysis (ESCA) and characteristic electron energy losses (EEL), it was found that the joint doping of barium oxide crystallites with nickel and such elements as yttrium, rhenium, palladium and strontium leads to a synergistic effect – a decrease in the curvature of the energy bands of crystallites at their surface, that is, to a decrease in the work function of the material.


Разработка: студия Green Art