Abstract:
The effect of cesium and potassium atoms deposited onto multiwalled carbon nanotubes grown in an electrical arc on their emission characteristics was studied. The current–voltage characteristics of the field electron emission of specimens with cesium or potassium doped multiwalled carbon nanotubes of this type were revealed to retain their linear character in the Fowler–Nordheim coordinates within several orders of magnitude of change in the emission current. The deposition of cesium and potassium atoms was shown to lead to a considerable increase in the emission current and a decrease in the work function φ of studied emitters with multiwalled nanotubes. The work function was established to decrease to φ∼ 3.1 eV at an optimal thickness of coating with cesium atoms and to φ∼ 2.9 eV in the case of doping with potassium atoms. Cesium and potassium deposition conditions optimal for the attainment of a maximum emission current were found.
Citation:
K. R. Izrael'yants, A. P. Orlov, A. B. Ormont, E. G. Chirkova, “Effect of the cesium and potassium doping of multiwalled carbon nanotubes grown in an electrical arc on their emission characteristics”, Fizika Tverdogo Tela, 59:4 (2017), 819–824; Phys. Solid State, 59:4 (2017), 838–844
\Bibitem{IzrOrlOrm17}
\by K.~R.~Izrael'yants, A.~P.~Orlov, A.~B.~Ormont, E.~G.~Chirkova
\paper Effect of the cesium and potassium doping of multiwalled carbon nanotubes grown in an electrical arc on their emission characteristics
\jour Fizika Tverdogo Tela
\yr 2017
\vol 59
\issue 4
\pages 819--824
\mathnet{http://mi.mathnet.ru/ftt9626}
\crossref{https://doi.org/10.21883/FTT.2017.04.44289.344}
\elib{https://elibrary.ru/item.asp?id=29257200}
\transl
\jour Phys. Solid State
\yr 2017
\vol 59
\issue 4
\pages 838--844
\crossref{https://doi.org/10.1134/S1063783417040084}
Linking options:
https://www.mathnet.ru/eng/ftt9626
https://www.mathnet.ru/eng/ftt/v59/i4/p819
This publication is cited in the following 4 articles:
Michael M. Slepchenkov, Igor S. Nefedov, Olga E. Glukhova, “Controlling the Electronic Properties of a Nanoporous Carbon Surface by Modifying the Pores with Alkali Metal Atoms”, Materials, 13:3 (2020), 610
Michael M. Slepchenkov, Dmitry Shmygin, Samuel Achilefu, Ramesh Raghavachari, Reporters, Markers, Dyes, Nanoparticles, and Molecular Probes for Biomedical Applications XII, 2020, 23
Michael M. Slepchenkov, Dmitry S. Shmygin, Gang Zhang, Olga E. Glukhova, “Controlling the electronic properties of 2D/3D pillared graphene and glass-like carbon via metal atom doping”, Nanoscale, 11:35 (2019), 16414
Ph. V. Kiryukhantsev-Korneev, A. D. Sytchenko, A. E. Kudryashov, E. A. Levashov, D. V. Shtansky, “The effect of Eu$_{2}$O$_{3}$ additive to the TiCNiCr electrode on the formation of electrospark coatings”, Tech. Phys. Lett., 44:8 (2018), 753–755