Effect of implantation of Ba +  and Nb +  ions on the morphology, composition, and emission properties of Мо (111)

Y. S. Ergashov; B. E. Umirzakov

doi:10.1134/S1064226917060079

Effect of implantation of Ba⁺ and Nb⁺ ions on the morphology, composition, and emission properties of Мо (111)

Authors: Ergashov Y.S.¹, Umirzakov B.E.¹
Affiliations:
1. Tashkent State Technical University
Issue: Vol 62, No 6 (2017)
Pages: 612-615
Section: Electron and Ion Emission
URL: https://journals.rcsi.science/1064-2269/article/view/198440
DOI: https://doi.org/10.1134/S1064226917060079
ID: 198440

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Abstract
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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.

About the authors

Y. S. Ergashov

Tashkent State Technical University

Author for correspondence.
Email: yergashev@mail.ru
Uzbekistan, Tashkent, 100095

B. E. Umirzakov