Field emitters made of the contacted ytterbium and carbon nanolayers | Zendy

G. G. Sominskii | Zendy; V. E. Sezonov | Zendy; Yu. M. Zadiranov | Zendy

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Field emitters made of the contacted ytterbium and carbon nanolayers

Author(s) -

G. G. Sominskii,

V. E. Sezonov,

Yu. M. Zadiranov

Publication year - 2015

Publication title -

st petersburg polytechnical university journal physics and mathematics

Language(s) - English

Resource type - Journals

ISSN - 2405-7223

DOI - 10.1016/j.spjpm.2015.09.003

Subject(s) - ytterbium , materials science , common emitter , field electron emission , carbon fibers , cathode , current density , field (mathematics) , optoelectronics , electron , composite material , doping , composite number , physics , chemistry , mathematics , quantum mechanics , pure mathematics

The operation of field emitters of a new type prepared from contacted nanolayers of ytterbium and carbon has been investigated. The performed calculations and experiments allowed to optimize the emission characteristics of the emitters. The calculations took into account the existence of a transition zone between the layers of Yb and C. Emission characteristics of the cathodes including up to 40 pairs of layers of carbon and ytterbium with optimum thicknesses of 5 and 2 nm respectively were measured. The created multilayered emitters provide the average emission current density over the surface of the emitter up to 10–20 A/cm2 and show promise for use in miniature electronic devices

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