Effect of implantation of Ba+ and Nb+ ions on the morphology, composition, and emission properties of Мо (111)
Y. S. ErgashovTashkent State Technical University, Tashkent, 100095, UzbekistanБ. Е. УмирзаковTashkent State Technical University, Tashkent, 100095, Uzbekistan
ABI
Abstract
The effect of implantation of Ba+ and Nb+ ions on the composition and emission properties of Мо (111) single crystals is investigated. It is shown that implantation of Ba+ ions leads to the complete purification of the Мо surface from С and О atoms, rapid decrease in the work function, and intensification of the secondary and photoelectron emission coefficients, while implantation of Nb+ ions leads to rapid (up to 30 at %) growth of the surface concentration of С. It is established that, after heating at Т = 1400 K, the surface is completely purified from carbon and Nb + Мо nanocrystalline phases are formed.